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vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Sadržaj</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">premjesti</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">sakrij</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Početak</div> </a> </li> <li id="toc-Podjela_tlakomjera_ili_manometara" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Podjela_tlakomjera_ili_manometara"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Podjela tlakomjera ili manometara</span> </div> </a> <ul id="toc-Podjela_tlakomjera_ili_manometara-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Vakuummetar" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Vakuummetar"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Vakuummetar</span> </div> </a> <button aria-controls="toc-Vakuummetar-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Sadržaj cjeline Vakuummetar</span> </button> <ul id="toc-Vakuummetar-sublist" class="vector-toc-list"> <li id="toc-U-cijev" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#U-cijev"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>U-cijev</span> </div> </a> <ul id="toc-U-cijev-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-McLeodov_vakuummetar" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#McLeodov_vakuummetar"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>McLeodov vakuummetar</span> </div> </a> <ul id="toc-McLeodov_vakuummetar-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Bourdonov_vakuummetar" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Bourdonov_vakuummetar"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.3</span> <span>Bourdonov vakuummetar</span> </div> </a> <ul id="toc-Bourdonov_vakuummetar-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Piranijev_vakuummetar" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Piranijev_vakuummetar"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.4</span> <span>Piranijev vakuummetar</span> </div> </a> <ul id="toc-Piranijev_vakuummetar-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Penningov_vakuummetar" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Penningov_vakuummetar"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.5</span> <span>Penningov vakuummetar</span> </div> </a> <ul id="toc-Penningov_vakuummetar-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Triodni_vakuummetar" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Triodni_vakuummetar"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.6</span> <span>Triodni vakuummetar</span> </div> </a> <ul id="toc-Triodni_vakuummetar-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Bayard-Alpertov_ionizacijski_vakuummetar" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Bayard-Alpertov_ionizacijski_vakuummetar"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.7</span> <span>Bayard-Alpertov ionizacijski vakuummetar</span> </div> </a> <ul id="toc-Bayard-Alpertov_ionizacijski_vakuummetar-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Izvori" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Izvori"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Izvori</span> </div> </a> <ul id="toc-Izvori-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Vanjske_poveznice" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Vanjske_poveznice"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Vanjske poveznice</span> </div> </a> <ul id="toc-Vanjske_poveznice-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Sadržaj" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Prikaz sadržaja stranice" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Prikaz sadržaja stranice</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Manometar</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Idi na druge jezične varijante članka. Dostupan je na 50 jezika" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-50" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">50 jezika</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Manometer" title="Manometer – afrikaans" lang="af" hreflang="af" data-title="Manometer" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%85%D9%82%D9%8A%D8%A7%D8%B3_%D8%B6%D8%BA%D8%B7_%D8%A7%D9%84%D9%85%D9%88%D8%A7%D8%A6%D8%B9" title="مقياس ضغط الموائع – arapski" lang="ar" hreflang="ar" data-title="مقياس ضغط الموائع" data-language-autonym="العربية" data-language-local-name="arapski" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Manometr" title="Manometr – azerbajdžanski" lang="az" hreflang="az" data-title="Manometr" data-language-autonym="Azərbaycanca" data-language-local-name="azerbajdžanski" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9C%D0%B0%D0%BD%D0%BE%D0%BC%D0%B5%D1%82%D1%80" title="Манометр – bjeloruski" lang="be" hreflang="be" data-title="Манометр" data-language-autonym="Беларуская" data-language-local-name="bjeloruski" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9C%D0%B0%D0%BD%D0%BE%D0%BC%D0%B5%D1%82%D1%8A%D1%80" title="Манометър – bugarski" lang="bg" hreflang="bg" data-title="Манометър" data-language-autonym="Български" data-language-local-name="bugarski" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Manometar" title="Manometar – bosanski" lang="bs" hreflang="bs" data-title="Manometar" data-language-autonym="Bosanski" data-language-local-name="bosanski" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Man%C3%B2metre" title="Manòmetre – katalonski" lang="ca" hreflang="ca" data-title="Manòmetre" data-language-autonym="Català" data-language-local-name="katalonski" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D9%85%D8%A7%D9%86%DB%86%D9%85%DB%95%D8%AA%D8%B1" title="مانۆمەتر – soranski kurdski" lang="ckb" hreflang="ckb" data-title="مانۆمەتر" data-language-autonym="کوردی" data-language-local-name="soranski kurdski" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Manometr" title="Manometr – češki" lang="cs" hreflang="cs" data-title="Manometr" data-language-autonym="Čeština" data-language-local-name="češki" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Manometer" title="Manometer – danski" lang="da" hreflang="da" data-title="Manometer" data-language-autonym="Dansk" data-language-local-name="danski" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Druckmessger%C3%A4t" title="Druckmessgerät – njemački" lang="de" hreflang="de" data-title="Druckmessgerät" data-language-autonym="Deutsch" data-language-local-name="njemački" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en badge-Q70893996 mw-list-item" title=""><a href="https://en.wikipedia.org/wiki/Manometer" title="Manometer – engleski" lang="en" hreflang="en" data-title="Manometer" data-language-autonym="English" data-language-local-name="engleski" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Manometro" title="Manometro – esperanto" lang="eo" hreflang="eo" data-title="Manometro" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Man%C3%B3metro" title="Manómetro – španjolski" lang="es" hreflang="es" data-title="Manómetro" data-language-autonym="Español" data-language-local-name="španjolski" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Manomeeter" title="Manomeeter – estonski" lang="et" hreflang="et" data-title="Manomeeter" data-language-autonym="Eesti" data-language-local-name="estonski" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Manometro" title="Manometro – baskijski" lang="eu" hreflang="eu" data-title="Manometro" data-language-autonym="Euskara" data-language-local-name="baskijski" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%81%D8%B4%D8%A7%D8%B1%D8%B3%D9%86%D8%AC_%DA%AF%D8%A7%D8%B2" title="فشارسنج گاز – perzijski" lang="fa" hreflang="fa" data-title="فشارسنج گاز" data-language-autonym="فارسی" data-language-local-name="perzijski" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Painemittari" title="Painemittari – finski" lang="fi" hreflang="fi" data-title="Painemittari" data-language-autonym="Suomi" data-language-local-name="finski" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Manom%C3%A8tre" title="Manomètre – francuski" lang="fr" hreflang="fr" data-title="Manomètre" data-language-autonym="Français" data-language-local-name="francuski" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Manaim%C3%A9adar" title="Manaiméadar – irski" lang="ga" hreflang="ga" data-title="Manaiméadar" data-language-autonym="Gaeilge" data-language-local-name="irski" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%9E%D7%A0%D7%95%D7%9E%D7%98%D7%A8" title="מנומטר – hebrejski" lang="he" hreflang="he" data-title="מנומטר" data-language-autonym="עברית" data-language-local-name="hebrejski" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Manom%C3%A9ter" title="Manométer – mađarski" lang="hu" hreflang="hu" data-title="Manométer" data-language-autonym="Magyar" data-language-local-name="mađarski" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%84%D5%A1%D5%B6%D5%B8%D5%B4%D5%A5%D5%BF%D6%80" title="Մանոմետր – armenski" lang="hy" hreflang="hy" data-title="Մանոմետր" data-language-autonym="Հայերեն" data-language-local-name="armenski" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Preso_mezuro" title="Preso mezuro – ido" lang="io" hreflang="io" data-title="Preso mezuro" data-language-autonym="Ido" data-language-local-name="ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Manometro" title="Manometro – talijanski" lang="it" hreflang="it" data-title="Manometro" data-language-autonym="Italiano" data-language-local-name="talijanski" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%9C%D0%B0%D0%BD%D0%BE%D0%BC%D0%B5%D1%82%D1%80" title="Манометр – kazaški" lang="kk" hreflang="kk" data-title="Манометр" data-language-autonym="Қазақша" data-language-local-name="kazaški" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%9C%D0%B0%D0%BD%D0%BE%D0%BC%D0%B5%D1%82%D1%80" title="Манометр – kirgiski" lang="ky" hreflang="ky" data-title="Манометр" data-language-autonym="Кыргызча" data-language-local-name="kirgiski" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Manometras" title="Manometras – litavski" lang="lt" hreflang="lt" data-title="Manometras" data-language-autonym="Lietuvių" data-language-local-name="litavski" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Manometrs" title="Manometrs – latvijski" lang="lv" hreflang="lv" data-title="Manometrs" data-language-autonym="Latviešu" data-language-local-name="latvijski" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%9C%D0%B0%D0%BD%D0%BE%D0%BC%D0%B5%D1%82%D0%B0%D1%80" title="Манометар – makedonski" lang="mk" hreflang="mk" data-title="Манометар" data-language-autonym="Македонски" data-language-local-name="makedonski" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Manometer" title="Manometer – nizozemski" lang="nl" hreflang="nl" data-title="Manometer" data-language-autonym="Nederlands" data-language-local-name="nizozemski" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Trykkm%C3%A5lar" title="Trykkmålar – norveški nynorsk" lang="nn" hreflang="nn" data-title="Trykkmålar" data-language-autonym="Norsk nynorsk" data-language-local-name="norveški nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Manometer" title="Manometer – norveški bokmål" lang="nb" hreflang="nb" data-title="Manometer" data-language-autonym="Norsk bokmål" data-language-local-name="norveški bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Manom%C3%A8tre" title="Manomètre – okcitanski" lang="oc" hreflang="oc" data-title="Manomètre" data-language-autonym="Occitan" data-language-local-name="okcitanski" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Manometr" title="Manometr – poljski" lang="pl" hreflang="pl" data-title="Manometr" data-language-autonym="Polski" data-language-local-name="poljski" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Man%C3%B4metro" title="Manômetro – portugalski" lang="pt" hreflang="pt" data-title="Manômetro" data-language-autonym="Português" data-language-local-name="portugalski" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Manometru" title="Manometru – rumunjski" lang="ro" hreflang="ro" data-title="Manometru" data-language-autonym="Română" data-language-local-name="rumunjski" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9C%D0%B0%D0%BD%D0%BE%D0%BC%D0%B5%D1%82%D1%80" title="Манометр – ruski" lang="ru" hreflang="ru" data-title="Манометр" data-language-autonym="Русский" data-language-local-name="ruski" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Manometar" title="Manometar – srpsko-hrvatski" lang="sh" hreflang="sh" data-title="Manometar" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="srpsko-hrvatski" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Manometer" title="Manometer – Simple English" lang="en-simple" hreflang="en-simple" data-title="Manometer" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Tlakomer" title="Tlakomer – slovački" lang="sk" hreflang="sk" data-title="Tlakomer" data-language-autonym="Slovenčina" data-language-local-name="slovački" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Manometer" title="Manometer – slovenski" lang="sl" hreflang="sl" data-title="Manometer" data-language-autonym="Slovenščina" data-language-local-name="slovenski" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9C%D0%B0%D0%BD%D0%BE%D0%BC%D0%B5%D1%82%D0%B0%D1%80" title="Манометар – srpski" lang="sr" hreflang="sr" data-title="Манометар" data-language-autonym="Српски / srpski" data-language-local-name="srpski" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Manometer" title="Manometer – švedski" lang="sv" hreflang="sv" data-title="Manometer" data-language-autonym="Svenska" data-language-local-name="švedski" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%AA%E0%B1%8D%E0%B0%B0%E0%B1%86%E0%B0%B7%E0%B0%B0%E0%B1%81_%E0%B0%97%E0%B1%87%E0%B0%9C%E0%B0%BF" title="ప్రెషరు గేజి – teluški" lang="te" hreflang="te" data-title="ప్రెషరు గేజి" data-language-autonym="తెలుగు" data-language-local-name="teluški" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Manometre" title="Manometre – turski" lang="tr" hreflang="tr" data-title="Manometre" data-language-autonym="Türkçe" data-language-local-name="turski" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9C%D0%B0%D0%BD%D0%BE%D0%BC%D0%B5%D1%82%D1%80" title="Манометр – ukrajinski" lang="uk" hreflang="uk" data-title="Манометр" data-language-autonym="Українська" data-language-local-name="ukrajinski" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Manometr" title="Manometr – uzbečki" lang="uz" hreflang="uz" data-title="Manometr" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbečki" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/%C4%90o_%C3%A1p_su%E1%BA%A5t" title="Đo áp suất – vijetnamski" lang="vi" hreflang="vi" data-title="Đo áp suất" data-language-autonym="Tiếng Việt" data-language-local-name="vijetnamski" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%8E%8B%E5%8A%9B%E6%B5%8B%E9%87%8F" title="压力测量 – kineski" lang="zh" hreflang="zh" data-title="压力测量" data-language-autonym="中文" data-language-local-name="kineski" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q216782#sitelinks-wikipedia" title="Poveznice na druge jezike" class="wbc-editpage">Uredi 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class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Pomagala"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Izgled"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Izgled</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">premjesti</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">sakrij</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Izvor: Wikipedija</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="hr" dir="ltr"><figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:WPPressGaugeMech.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f8/WPPressGaugeMech.jpg/200px-WPPressGaugeMech.jpg" decoding="async" width="200" height="258" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/f/f8/WPPressGaugeMech.jpg 1.5x" data-file-width="256" data-file-height="330" /></a><figcaption>Mehanizam manometra s <a href="/wiki/Bourdonova_cijev" title="Bourdonova cijev">Bourdonovom cijevi</a>.</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Manometer_104026.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d5/Manometer_104026.jpg/200px-Manometer_104026.jpg" decoding="async" width="200" height="150" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d5/Manometer_104026.jpg/300px-Manometer_104026.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d5/Manometer_104026.jpg/400px-Manometer_104026.jpg 2x" data-file-width="1024" data-file-height="768" /></a><figcaption><a href="/wiki/Metal" class="mw-redirect" title="Metal">Metalni</a> manometar s <a href="/wiki/Membrana" class="mw-disambig" title="Membrana">membranom</a>.</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Utube.PNG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/08/Utube.PNG/200px-Utube.PNG" decoding="async" width="200" height="445" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/0/08/Utube.PNG 1.5x" data-file-width="300" data-file-height="667" /></a><figcaption>U-cijev mjeri razliku <a href="/wiki/Tlak" title="Tlak">tlakova</a>: <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle H={\frac {P_{a}-P_{o}}{g\cdot \rho }}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>H</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>a</mi> </mrow> </msub> <mo>−</mo> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>o</mi> </mrow> </msub> </mrow> <mrow> <mi>g</mi> <mo>⋅</mo> <mi>ρ</mi> </mrow> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle H={\frac {P_{a}-P_{o}}{g\cdot \rho }}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/379a8b5ba7f809e54d5e0f6e3ae5556231000dca" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.338ex; width:13.955ex; height:5.676ex;" alt="{\displaystyle H={\frac {P_{a}-P_{o}}{g\cdot \rho }}}"></span>.</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:McLeod_gauge.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/32/McLeod_gauge.jpg/200px-McLeod_gauge.jpg" decoding="async" width="200" height="267" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/32/McLeod_gauge.jpg/300px-McLeod_gauge.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/32/McLeod_gauge.jpg/400px-McLeod_gauge.jpg 2x" data-file-width="1712" data-file-height="2288" /></a><figcaption>McLeodov vakuummetar.</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Bayard-Alpert_gauge.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/10/Bayard-Alpert_gauge.jpg/200px-Bayard-Alpert_gauge.jpg" decoding="async" width="200" height="267" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/10/Bayard-Alpert_gauge.jpg/300px-Bayard-Alpert_gauge.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/10/Bayard-Alpert_gauge.jpg/400px-Bayard-Alpert_gauge.jpg 2x" data-file-width="600" data-file-height="800" /></a><figcaption>Bayard-Alpertov ionizacijski vakuummetar.</figcaption></figure> <p><b>Manometar</b> (<a href="/wiki/Francuski_jezik" title="Francuski jezik">franc</a>. <i>manomètre</i>, prema <a href="/wiki/Gr%C4%8Dki_jezik" title="Grčki jezik">grč</a>. <i>μανός</i>: tanak, rijedak) ili <b>tlakomjer</b> je <a href="/wiki/Mjerni_instrument" title="Mjerni instrument">mjerni instrument</a> za <a href="/wiki/Mjerenje" title="Mjerenje">mjerenje</a> <a href="/wiki/Tlak" title="Tlak">tlaka</a> <a href="/wiki/Plin" title="Plin">plinova</a>, <a href="/wiki/Para" title="Para">para</a> ili <a href="/wiki/Teku%C4%87ina" class="mw-redirect" title="Tekućina">tekućina</a>. Ovisno o namjeni, koriste se i drugi nazivi: <a href="/wiki/Vakuummetar" class="mw-redirect" title="Vakuummetar">vakuummetar</a> služi za mjerenje niskih tlakova, <a href="/wiki/Barometar" title="Barometar">barometar</a> za mjerenje <a href="/wiki/Atmosferski_tlak" title="Atmosferski tlak">atmosferskoga tlaka</a>, diferencijski manometar mjeri razlike tlaka, i tako dalje. Prvo poznato mjerenje tlaka izveo je 1643. <a href="/wiki/Evangelista_Torricelli" title="Evangelista Torricelli">E. Torricelli</a> i pritom utvrdio da <a href="/wiki/Atmosfera" title="Atmosfera">atmosferski omotač</a> tlači <a href="/wiki/Zemlja" title="Zemlja">Zemlju</a> toliko, koliko na jednaku <a href="/wiki/Plo%C5%A1tina" class="mw-redirect" title="Ploština">ploštinu</a> tlači i <a href="/wiki/Milimetar_%C5%BEivina_stupca" title="Milimetar živina stupca">živin stupac</a> visine 760 mm. </p><p>Manometri se mogu podijeliti na tri skupine, ovisno o mjernom osjetilu tlaka: hidraulične, mehaničke i električne manometre, a svaka od tih skupina obuhvaća niz različitih izvedaba. Hidraulična osjetila tlaka najtočnija su i najstabilnija, iako pri primjeni nisu tako prikladna kao mehanička. Hidraulični su manometri najčešće <a href="/wiki/Cijev" title="Cijev">cijevi</a> savijene u obliku slova U (U-manometar), punjene nekom tekućinom (na primjer <a href="/wiki/%C5%BDiva" title="Živa">živom</a>, <a href="/wiki/Voda" title="Voda">vodom</a>, <a href="/wiki/Mineralna_ulja" title="Mineralna ulja">mineralnim uljem</a>, <a href="/wiki/Alkoholi" title="Alkoholi">špiritom</a>). Mjerenje se izvodi dovođenjem različitih tlakova na otvore cijevi. <a href="/wiki/Sila" title="Sila">Sile</a> koje djeluju na površinu tekućine u lijevom i desnom kraku razlikuju se pa se zbog toga tekućina pomiče u smjeru manjega tlaka sve dok stupac tekućine nastao razlikom razina tekućina u krakovima svojom težinom ne uspostavi <a href="/wiki/Ravnote%C5%BEa_(mehanika)" title="Ravnoteža (mehanika)">ravnotežu sila.</a> Visina toga stupca mjera je razlika tlakova dovedenih na otvore cijevi. Mehanička osjetila tlaka djeluju na temelju ovisnosti između elastične <a href="/wiki/Deformacija" title="Deformacija">deformacije</a> posebno izvedenih <a href="/wiki/Senzor" class="mw-redirect" title="Senzor">osjetila</a> i tlaka. Najčešće se primjenjuju pri industrijskim mjerenjima i u regulacijskim krugovima. Električna osjetila tlaka gotovo isključivo služe za mjerenje vrlo niskih ili vrlo visokih tlakova. </p><p>U <a href="/wiki/Medicina" title="Medicina">medicini</a>, tlakomjerima se mjere pojedine organske funkcije i stanja koja su važna u dijagnostici nekih bolesti. Mjerenje sistoličkog i dijastoličkoga tlaka važno je u dijagnostici arterijske hipertenzije, mjerenje očnoga tlaka važno je za dijagnozu glaukoma i drugo.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Podjela_tlakomjera_ili_manometara">Podjela tlakomjera ili manometara</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Manometar&veaction=edit&section=1" title="Uredi odlomak: Podjela tlakomjera ili manometara" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Manometar&action=edit&section=1" title="Uredi kôd odjeljka Podjela tlakomjera ili manometara"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Manometar ili tlakomjer može biti: </p> <ul><li><b>otvoreni manometar</b>. <a href="/wiki/Tlak" title="Tlak">Tlak</a> <a href="/wiki/Plin" title="Plin">plina</a> potisnut će tekućinu u jednom kraku <a href="/wiki/Cijev" title="Cijev">cijevi</a> tako da se u drugom digne. Razlika visina tekućine <i>h</i> u oba kraka daje pretlak odnosno podtlak, to jest iznos za koliko je tlak veći ili manji od vanjskog tlaka (obično <a href="/wiki/Atmosferski_tlak" title="Atmosferski tlak">atmosferski tlak</a>), i to u <a href="/wiki/Metar" title="Metar">mm</a> stupca tekućine kojom kojom je manometar punjen. Za manje tlakove manometar se puni <a href="/wiki/Voda" title="Voda">vodom</a>, a za veće <a href="/wiki/%C5%BDiva" title="Živa">živom</a>.</li> <li><b>zatvoreni manometar</b>. Ovaj manometar ima jedan krak cijevi zatvoren i služi za mjerenje većih tlakova. U zatvorenom kraku nalazi se zrak pod običnim atmosferskim tlakom. Tlak se mjeri promjenom obujma (volumena) zraka, to jest prema <a href="/wiki/Boyle-Mariotteov_zakon" title="Boyle-Mariotteov zakon">Boyle-Mariotteovu zakonu</a>. Skala je kod zatvorenog manometra nejednolika, brojke su za vrlo velike tlakove smještene gusto jedna do druge.</li> <li><b>metalni manometar</b>. U primjeni se najviše upotrebljavaju za mjerenje tlaka metalni manometri, načinjeni poput <a href="/wiki/Aneroid" title="Aneroid">aneroida</a> i manometri s Burdonovom cijevi. <a href="/wiki/Metal" class="mw-redirect" title="Metal">Metalni</a> ili kovni manometri upotrebljavaju se kod <a href="/wiki/Kotao" title="Kotao">parnih kotlova</a>, kod rezervoara za rasvjetni plin, na čeličnim bocama za komprimirani <a href="/wiki/Kisik" title="Kisik">kisik</a> i drugdje. <ul><li>kod metalnog manometra s membranom tlak plina potiskuje metalnu <a href="/wiki/Membrana" class="mw-disambig" title="Membrana">membranu</a> čije se pomicanje prenosi na kazaljku. Ova na skali umjerenoj (baždarenoj) u <a href="/wiki/Paskal" title="Paskal">paskalima</a> (ponekad <a href="/wiki/Bar_(jedinica)" title="Bar (jedinica)">bar</a>) pokazuje tlak.</li> <li>kod manometra s Burdonovom cijevi tlak plina djeluje na unutarnje stijenke elastične kovinske cijevi (<a href="/wiki/Bourdonova_cijev" title="Bourdonova cijev">Bourdonova cijev</a>) i nastoji je ispraviti, jer je vanjska stijenka veće površine, pa na nju djeluje i veći tlak. Gibanje cijevi prenosi se na kazaljku.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></li></ul></li></ul> <div class="mw-heading mw-heading2"><h2 id="Vakuummetar">Vakuummetar</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Manometar&veaction=edit&section=2" title="Uredi odlomak: Vakuummetar" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Manometar&action=edit&section=2" title="Uredi kôd odjeljka Vakuummetar"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><b>Vakuummetar</b> je mjerni instrument za mjerenje niskih i vrlo niskih tlakova.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="U-cijev">U-cijev</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Manometar&veaction=edit&section=3" title="Uredi odlomak: U-cijev" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Manometar&action=edit&section=3" title="Uredi kôd odjeljka U-cijev"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><b>U-cijev</b> najjednostavniji je vakuummetar, to je cijev u obliku slova <i>U</i> punjen <a href="/wiki/%C5%BDiva" title="Živa">živom</a>, nalik je na hidraulični manometar, s time da otvoreni kraj cijevi nije izložen atmosferskomu tlaku nego tlaku u posudi u kojoj se određuje <a href="/wiki/Vakuum" title="Vakuum">vakuum</a>. </p> <div class="mw-heading mw-heading3"><h3 id="McLeodov_vakuummetar">McLeodov vakuummetar</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Manometar&veaction=edit&section=4" title="Uredi odlomak: McLeodov vakuummetar" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Manometar&action=edit&section=4" title="Uredi kôd odjeljka McLeodov vakuummetar"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><b>McLeodov vakuummetar</b> (1874.) zasniva se na mjerenju razine žive, ali se kod njega nadtlakom kompenzira podizanje razine žive izazvano podtlakom (vakuumom). </p> <div class="mw-heading mw-heading3"><h3 id="Bourdonov_vakuummetar">Bourdonov vakuummetar</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Manometar&veaction=edit&section=5" title="Uredi odlomak: Bourdonov vakuummetar" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Manometar&action=edit&section=5" title="Uredi kôd odjeljka Bourdonov vakuummetar"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><b>Bourdonov vakuummetar</b> u osnovi je <a href="/wiki/Aneroid" title="Aneroid">aneroid</a> spojen na vakuumsku posudu. </p> <div class="mw-heading mw-heading3"><h3 id="Piranijev_vakuummetar">Piranijev vakuummetar</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Manometar&veaction=edit&section=6" title="Uredi odlomak: Piranijev vakuummetar" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Manometar&action=edit&section=6" title="Uredi kôd odjeljka Piranijev vakuummetar"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><b>Piranijev vakuummetar</b> (1906.) vrsta je vakuummetra s odvođenjem topline. Služi za mjerenje tlaka do 0,1 <a href="/wiki/Paskal" title="Paskal">Pa</a>. Osnovu mu čini tanka žica (najčešće <a href="/wiki/Platina" title="Platina">platinska</a>) spojena u <a href="/w/index.php?title=Wheatstoneov_most&action=edit&redlink=1" class="new" title="Wheatstoneov most (stranica ne postoji)">Wheatstoneov most</a> ili neki drugi sklop za određivanje <a href="/wiki/Elektri%C4%8Dni_otpor" title="Električni otpor">električnog otpora</a>. Kod niskih tlakova, kada srednji <a href="/wiki/Slobodni_put" title="Slobodni put">slobodni put</a> <a href="/wiki/%C4%8Cestica" class="mw-redirect" title="Čestica">čestica</a> postane jednak promjeru cijevi u kojoj se žica nalazi ili veći, odvođenje topline sa žice postaje razmjerno <a href="/wiki/Toplinska_vodljivost" title="Toplinska vodljivost">toplinskoj provodnosti</a> plina, a ona je razmjerna njegovu tlaku. </p> <div class="mw-heading mw-heading3"><h3 id="Penningov_vakuummetar">Penningov vakuummetar</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Manometar&veaction=edit&section=7" title="Uredi odlomak: Penningov vakuummetar" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Manometar&action=edit&section=7" title="Uredi kôd odjeljka Penningov vakuummetar"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><b>Penningov vakuummetar</b> (1937.) uređaj je s takozvanom hladnom katodom, te mjeri tinjavi izboj u međukatodnom prostoru koji podržava <a href="/wiki/Magnetsko_polje" title="Magnetsko polje">magnetsko polje</a>. Pojava izboja ovisi o tlaku i jakosti magnetskoga polja pa se promjenama magnetskog polja i registracijom izboja mogu mjeriti tlakovi do 10<sup>–4</sup> Pa. </p> <div class="mw-heading mw-heading3"><h3 id="Triodni_vakuummetar">Triodni vakuummetar</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Manometar&veaction=edit&section=8" title="Uredi odlomak: Triodni vakuummetar" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Manometar&action=edit&section=8" title="Uredi kôd odjeljka Triodni vakuummetar"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><b>Triodni vakuummetar</b> s vrućom katodom u osnovi je <a href="/wiki/Trioda" title="Trioda">trioda</a> otvorom spojena s vakuumskom posudom. <a href="/wiki/Elektron" title="Elektron">Elektrone</a> emitirane iz žarne niti privlači rešetka na višem <a href="/wiki/Elektri%C4%8Dni_potencijal" title="Električni potencijal">potencijalu</a>, a nakon prolaska kroz rešetku elektroni ulaze u obrnuto električno polje, što ih tjera na <a href="/wiki/Titranje" title="Titranje">titranje</a> i sudaranje s molekulama plina, te na <a href="/wiki/Ioniziranje" title="Ioniziranje">ioniziranje</a>. Pozitivni ioni plina uhvaćeni na negativno nabijenom kolektoru stvaraju malu električnu struju razmjernu količini čestica plina. Mjerno je područje toga vakuummetra 10<sup>–1</sup> do 10<sup>–6</sup> Pa. </p> <div class="mw-heading mw-heading3"><h3 id="Bayard-Alpertov_ionizacijski_vakuummetar">Bayard-Alpertov ionizacijski vakuummetar</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Manometar&veaction=edit&section=9" title="Uredi odlomak: Bayard-Alpertov ionizacijski vakuummetar" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Manometar&action=edit&section=9" title="Uredi kôd odjeljka Bayard-Alpertov ionizacijski vakuummetar"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><b>Bayard-Alpertov ionizacijski vakuummetar</b> u osnovi je triodni vakuummetar u kojem je kolektor iona tanka žica unutar spiralne rešetke. Ovisno o finoći konstrukcije, taj vakuummetar može mjeriti tlakove do 10<sup>–10</sup> Pa. </p> <div class="mw-heading mw-heading2"><h2 id="Izvori">Izvori</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Manometar&veaction=edit&section=10" title="Uredi odlomak: Izvori" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Manometar&action=edit&section=10" title="Uredi kôd odjeljka Izvori"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r6541845">.mw-parser-output .reflist{font-size:90%;margin-bottom:0.5em;list-style-type:decimal}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text"> <b>manometar (tlakomjer)</b>, <a rel="nofollow" class="external autonumber" href="http://www.enciklopedija.hr/Natuknica.aspx?ID=38676">[1]</a> "Hrvatska enciklopedija", Leksikografski zavod Miroslav Krleža, www.enciklopedija.hr, 2016.</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text"> Velimir Kruz: "Tehnička fizika za tehničke škole", "Školska knjiga" Zagreb, 1969.</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"> <b>vakuummetar</b>, <a rel="nofollow" class="external autonumber" href="http://www.enciklopedija.hr/natuknica.aspx?ID=63675">[2]</a> "Hrvatska enciklopedija", Leksikografski zavod Miroslav Krleža, www.enciklopedija.hr, 2016.</span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Vanjske_poveznice">Vanjske poveznice</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Manometar&veaction=edit&section=11" title="Uredi odlomak: Vanjske poveznice" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Manometar&action=edit&section=11" title="Uredi kôd odjeljka Vanjske poveznice"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <table border="0" class="noprint" style="clear: right; 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