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<!DOCTYPE html> <html lang="en"> <head> <title>NASA deploys MicroStrain Wireless Sensor Network | MicroStrain by HBK</title>  <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); })(window,document,'script','digitalData','GTM-NDMV275');</script>  <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0"/> <meta name="description" content="NASA deploys MicroStrain Wireless Sensor Network | MicroStrain by HBK" />  <link rel="dns-prefetch" href="//fonts.gstatic.com" /> <link rel="preconnect" href="//fonts.gstatic.com" crossorigin="" /> <link rel="dns-prefetch" href="//fonts.googleapis.com" /> <link rel="preconnect" href="//fonts.googleapis.com" /> <link rel="dns-prefetch" href="//code.jquery.com" /> <link rel="preconnect" href="//code.jquery.com" /> <link rel="dns-prefetch" href="//cdn.jsdelivr.net" /> <link rel="preconnect" href="//cdn.jsdelivr.net" /> <link rel="dns-prefetch" href="//www.youtube.com" /> <link rel="preconnect" href="//www.youtube.com" /> <link rel="dns-prefetch" href="//cdnjs.cloudflare.com" /> <link rel="preconnect" href="//cdnjs.cloudflare.com" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="description" content="MicroStrain worked with NASA Kennedy Space Center researchers to implement a wireless sensor solution. 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"https://api.mouser.com/api/v2/search/partnumberandmanufacturer?apiKey=" + apiKeys[currentKey]); xhr.setRequestHeader("accept", "application/json"); xhr.setRequestHeader("content-type", "application/json"); xhr.setRequestHeader("cache-control", "no-cache"); xhr.setRequestHeader("postman-token", "160d9cba-5c10-a9c8-58e7-207b449b783b"); xhr.send(data); } makeRequest(data); $('button#express-delivery').on("click",function(){ $('#expressDeliveryModal').height(0); var mouserPage = $('input#edit-submitted-redirect').attr('value'); window.location.href = mouserPage; }) }); })(jQuery);*/ var Drupal = Drupal || { 'settings': {}, 'behaviors': {}, 'locale': {} }; // Allow other JavaScript libraries to use $. jQuery.noConflict(); (function ($) { /** * Override jQuery.fn.init to guard against XSS attacks. * * See http://bugs.jquery.com/ticket/9521 */ var jquery_init = $.fn.init; $.fn.init = function (selector, context, rootjQuery) { // If the string contains a "#" before a "<", treat it as invalid HTML. if (selector && typeof selector === 'string') { var hash_position = selector.indexOf('#'); if (hash_position >= 0) { var bracket_position = selector.indexOf('<'); if (bracket_position > hash_position) { throw 'Syntax error, unrecognized expression: ' + selector; } } } return jquery_init.call(this, selector, context, rootjQuery); }; $.fn.init.prototype = jquery_init.prototype; /** * Pre-filter Ajax requests to guard against XSS attacks. * * See https://github.com/jquery/jquery/issues/2432 */ if ($.ajaxPrefilter) { // For newer versions of jQuery, use an Ajax prefilter to prevent // auto-executing script tags from untrusted domains. This is similar to the // fix that is built in to jQuery 3.0 and higher. $.ajaxPrefilter(function (s) { if (s.crossDomain) { s.contents.script = false; } }); } else if ($.httpData) { // For the version of jQuery that ships with Drupal core, override // jQuery.httpData to prevent auto-detecting "script" data types from // untrusted domains. var jquery_httpData = $.httpData; $.httpData = function (xhr, type, s) { // @todo Consider backporting code from newer jQuery versions to check for // a cross-domain request here, rather than using Drupal.urlIsLocal() to // block scripts from all URLs that are not on the same site. if (!type && !Drupal.urlIsLocal(s.url)) { var content_type = xhr.getResponseHeader('content-type') || ''; if (content_type.indexOf('javascript') >= 0) { // Default to a safe data type. type = 'text'; } } return jquery_httpData.call(this, xhr, type, s); }; $.httpData.prototype = jquery_httpData.prototype; } /** * Attach all registered behaviors to a page element. * * Behaviors are event-triggered actions that attach to page elements, enhancing * default non-JavaScript UIs. Behaviors are registered in the Drupal.behaviors * object using the method 'attach' and optionally also 'detach' as follows: * @code * Drupal.behaviors.behaviorName = { * attach: function (context, settings) { * ... * }, * detach: function (context, settings, trigger) { * ... * } * }; * @endcode * * Drupal.attachBehaviors is added below to the jQuery ready event and so * runs on initial page load. Developers implementing AHAH/Ajax in their * solutions should also call this function after new page content has been * loaded, feeding in an element to be processed, in order to attach all * behaviors to the new content. * * Behaviors should use * @code * $(selector).once('behavior-name', function () { * ... * }); * @endcode * to ensure the behavior is attached only once to a given element. (Doing so * enables the reprocessing of given elements, which may be needed on occasion * despite the ability to limit behavior attachment to a particular element.) * * @param context * An element to attach behaviors to. If none is given, the document element * is used. * @param settings * An object containing settings for the current context. If none given, the * global Drupal.settings object is used. */ Drupal.attachBehaviors = function (context, settings) { context = context || document; settings = settings || Drupal.settings; // Execute all of them. $.each(Drupal.behaviors, function () { if ($.isFunction(this.attach)) { this.attach(context, settings); } }); }; /** * Detach registered behaviors from a page element. * * Developers implementing AHAH/Ajax in their solutions should call this * function before page content is about to be removed, feeding in an element * to be processed, in order to allow special behaviors to detach from the * content. * * Such implementations should look for the class name that was added in their * corresponding Drupal.behaviors.behaviorName.attach implementation, i.e. * behaviorName-processed, to ensure the behavior is detached only from * previously processed elements. * * @param context * An element to detach behaviors from. If none is given, the document element * is used. * @param settings * An object containing settings for the current context. If none given, the * global Drupal.settings object is used. * @param trigger * A string containing what's causing the behaviors to be detached. The * possible triggers are: * - unload: (default) The context element is being removed from the DOM. * - move: The element is about to be moved within the DOM (for example, * during a tabledrag row swap). After the move is completed, * Drupal.attachBehaviors() is called, so that the behavior can undo * whatever it did in response to the move. Many behaviors won't need to * do anything simply in response to the element being moved, but because * IFRAME elements reload their "src" when being moved within the DOM, * behaviors bound to IFRAME elements (like WYSIWYG editors) may need to * take some action. * - serialize: When an Ajax form is submitted, this is called with the * form as the context. This provides every behavior within the form an * opportunity to ensure that the field elements have correct content * in them before the form is serialized. The canonical use-case is so * that WYSIWYG editors can update the hidden textarea to which they are * bound. * * @see Drupal.attachBehaviors */ Drupal.detachBehaviors = function (context, settings, trigger) { context = context || document; settings = settings || Drupal.settings; trigger = trigger || 'unload'; // Execute all of them. $.each(Drupal.behaviors, function () { if ($.isFunction(this.detach)) { this.detach(context, settings, trigger); } }); }; /** * Encode special characters in a plain-text string for display as HTML. * * @ingroup sanitization */ Drupal.checkPlain = function (str) { var character, regex, replace = { '&': '&', "'": ''', '"': '"', '<': '<', '>': '>' }; str = String(str); for (character in replace) { if (replace.hasOwnProperty(character)) { regex = new RegExp(character, 'g'); str = str.replace(regex, replace[character]); } } return str; }; /** * Replace placeholders with sanitized values in a string. * * @param str * A string with placeholders. * @param args * An object of replacements pairs to make. Incidences of any key in this * array are replaced with the corresponding value. Based on the first * character of the key, the value is escaped and/or themed: * - !variable: inserted as is * - @variable: escape plain text to HTML (Drupal.checkPlain) * - %variable: escape text and theme as a placeholder for user-submitted * content (checkPlain + Drupal.theme('placeholder')) * * @see Drupal.t() * @ingroup sanitization */ Drupal.formatString = function(str, args) { // Transform arguments before inserting them. for (var key in args) { if (args.hasOwnProperty(key)) { switch (key.charAt(0)) { // Escaped only. case '@': args[key] = Drupal.checkPlain(args[key]); break; // Pass-through. case '!': break; // Escaped and placeholder. default: args[key] = Drupal.theme('placeholder', args[key]); break; } } } return Drupal.stringReplace(str, args, null); }; /** * Replace substring. * * The longest keys will be tried first. Once a substring has been replaced, * its new value will not be searched again. * * @param {String} str * A string with placeholders. * @param {Object} args * Key-value pairs. * @param {Array|null} keys * Array of keys from the "args". Internal use only. * * @return {String} * Returns the replaced string. */ Drupal.stringReplace = function (str, args, keys) { if (str.length === 0) { return str; } // If the array of keys is not passed then collect the keys from the args. if (!$.isArray(keys)) { keys = []; for (var k in args) { if (args.hasOwnProperty(k)) { keys.push(k); } } // Order the keys by the character length. The shortest one is the first. keys.sort(function (a, b) { return a.length - b.length; }); } if (keys.length === 0) { return str; } // Take next longest one from the end. var key = keys.pop(); var fragments = str.split(key); if (keys.length) { for (var i = 0; i < fragments.length; i++) { // Process each fragment with a copy of remaining keys. fragments[i] = Drupal.stringReplace(fragments[i], args, keys.slice(0)); } } return fragments.join(args[key]); }; /** * Translate strings to the page language or a given language. * * See the documentation of the server-side t() function for further details. * * @param str * A string containing the English string to translate. * @param args * An object of replacements pairs to make after translation. Incidences * of any key in this array are replaced with the corresponding value. * See Drupal.formatString(). * * @param options * - 'context' (defaults to the empty context): The context the source string * belongs to. * * @return * The translated string. */ Drupal.t = function (str, args, options) { options = options || {}; options.context = options.context || ''; // Fetch the localized version of the string. if (Drupal.locale.strings && Drupal.locale.strings[options.context] && Drupal.locale.strings[options.context][str]) { str = Drupal.locale.strings[options.context][str]; } if (args) { str = Drupal.formatString(str, args); } return str; }; /** * Format a string containing a count of items. * * This function ensures that the string is pluralized correctly. Since Drupal.t() is * called by this function, make sure not to pass already-localized strings to it. * * See the documentation of the server-side format_plural() function for further details. * * @param count * The item count to display. * @param singular * The string for the singular case. Please make sure it is clear this is * singular, to ease translation (e.g. use "1 new comment" instead of "1 new"). * Do not use @count in the singular string. * @param plural * The string for the plural case. Please make sure it is clear this is plural, * to ease translation. Use @count in place of the item count, as in "@count * new comments". * @param args * An object of replacements pairs to make after translation. Incidences * of any key in this array are replaced with the corresponding value. * See Drupal.formatString(). * Note that you do not need to include @count in this array. * This replacement is done automatically for the plural case. * @param options * The options to pass to the Drupal.t() function. * @return * A translated string. */ Drupal.formatPlural = function (count, singular, plural, args, options) { args = args || {}; args['@count'] = count; // Determine the index of the plural form. var index = Drupal.locale.pluralFormula ? Drupal.locale.pluralFormula(args['@count']) : ((args['@count'] == 1) ? 0 : 1); if (index == 0) { return Drupal.t(singular, args, options); } else if (index == 1) { return Drupal.t(plural, args, options); } else { args['@count[' + index + ']'] = args['@count']; delete args['@count']; return Drupal.t(plural.replace('@count', '@count[' + index + ']'), args, options); } }; /** * Returns the passed in URL as an absolute URL. * * @param url * The URL string to be normalized to an absolute URL. * * @return * The normalized, absolute URL. * * @see https://github.com/angular/angular.js/blob/v1.4.4/src/ng/urlUtils.js * @see https://grack.com/blog/2009/11/17/absolutizing-url-in-javascript * @see https://github.com/jquery/jquery-ui/blob/1.11.4/ui/tabs.js#L53 */ Drupal.absoluteUrl = function (url) { var urlParsingNode = document.createElement('a'); // Decode the URL first; this is required by IE <= 6. Decoding non-UTF-8 // strings may throw an exception. try { url = decodeURIComponent(url); } catch (e) {} urlParsingNode.setAttribute('href', url); // IE <= 7 normalizes the URL when assigned to the anchor node similar to // the other browsers. return urlParsingNode.cloneNode(false).href; }; /** * Returns true if the URL is within Drupal's base path. * * @param url * The URL string to be tested. * * @return * Boolean true if local. * * @see https://github.com/jquery/jquery-ui/blob/1.11.4/ui/tabs.js#L58 */ Drupal.urlIsLocal = function (url) { // Always use browser-derived absolute URLs in the comparison, to avoid // attempts to break out of the base path using directory traversal. var absoluteUrl = Drupal.absoluteUrl(url); var protocol = location.protocol; // Consider URLs that match this site's base URL but use HTTPS instead of HTTP // as local as well. if (protocol === 'http:' && absoluteUrl.indexOf('https:') === 0) { protocol = 'https:'; } var baseUrl = protocol + '//' + location.host + Drupal.settings.basePath.slice(0, -1); // Decoding non-UTF-8 strings may throw an exception. try { absoluteUrl = decodeURIComponent(absoluteUrl); } catch (e) {} try { baseUrl = decodeURIComponent(baseUrl); } catch (e) {} // The given URL matches the site's base URL, or has a path under the site's // base URL. return absoluteUrl === baseUrl || absoluteUrl.indexOf(baseUrl + '/') === 0; }; /** * Generate the themed representation of a Drupal object. * * All requests for themed output must go through this function. It examines * the request and routes it to the appropriate theme function. If the current * theme does not provide an override function, the generic theme function is * called. * * For example, to retrieve the HTML for text that should be emphasized and * displayed as a placeholder inside a sentence, call * Drupal.theme('placeholder', text). * * @param func * The name of the theme function to call. * @param ... * Additional arguments to pass along to the theme function. * @return * Any data the theme function returns. This could be a plain HTML string, * but also a complex object. */ Drupal.theme = function (func) { var args = Array.prototype.slice.apply(arguments, [1]); return (Drupal.theme[func] || Drupal.theme.prototype[func]).apply(this, args); }; /** * Freeze the current body height (as minimum height). Used to prevent * unnecessary upwards scrolling when doing DOM manipulations. */ Drupal.freezeHeight = function () { Drupal.unfreezeHeight(); $('<div id="freeze-height"></div>').css({ position: 'absolute', top: '0px', left: '0px', width: '1px', height: $('body').css('height') }).appendTo('body'); }; /** * Unfreeze the body height. */ Drupal.unfreezeHeight = function () { $('#freeze-height').remove(); }; /** * Encodes a Drupal path for use in a URL. * * For aesthetic reasons slashes are not escaped. */ Drupal.encodePath = function (item, uri) { uri = uri || location.href; return encodeURIComponent(item).replace(/%2F/g, '/'); }; /** * Get the text selection in a textarea. */ Drupal.getSelection = function (element) { if (typeof element.selectionStart != 'number' && document.selection) { // The current selection. var range1 = document.selection.createRange(); var range2 = range1.duplicate(); // Select all text. range2.moveToElementText(element); // Now move 'dummy' end point to end point of original range. range2.setEndPoint('EndToEnd', range1); // Now we can calculate start and end points. var start = range2.text.length - range1.text.length; var end = start + range1.text.length; return { 'start': start, 'end': end }; } return { 'start': element.selectionStart, 'end': element.selectionEnd }; }; /** * Add a global variable which determines if the window is being unloaded. * * This is primarily used by Drupal.displayAjaxError(). */ Drupal.beforeUnloadCalled = false; $(window).bind('beforeunload pagehide', function () { Drupal.beforeUnloadCalled = true; }); /** * Displays a JavaScript error from an Ajax response when appropriate to do so. */ Drupal.displayAjaxError = function (message) { // Skip displaying the message if the user deliberately aborted (for example, // by reloading the page or navigating to a different page) while the Ajax // request was still ongoing. See, for example, the discussion at // http://stackoverflow.com/questions/699941/handle-ajax-error-when-a-user-clicks-refresh. if (!Drupal.beforeUnloadCalled) { alert(message); } }; /** * Build an error message from an Ajax response. */ Drupal.ajaxError = function (xmlhttp, uri, customMessage) { var statusCode, statusText, pathText, responseText, readyStateText, message; if (xmlhttp.status) { statusCode = "\n" + Drupal.t("An AJAX HTTP error occurred.") + "\n" + Drupal.t("HTTP Result Code: !status", {'!status': xmlhttp.status}); } else { statusCode = "\n" + Drupal.t("An AJAX HTTP request terminated abnormally."); } statusCode += "\n" + Drupal.t("Debugging information follows."); pathText = "\n" + Drupal.t("Path: !uri", {'!uri': uri} ); statusText = ''; // In some cases, when statusCode == 0, xmlhttp.statusText may not be defined. // Unfortunately, testing for it with typeof, etc, doesn't seem to catch that // and the test causes an exception. So we need to catch the exception here. try { statusText = "\n" + Drupal.t("StatusText: !statusText", {'!statusText': $.trim(xmlhttp.statusText)}); } catch (e) {} responseText = ''; // Again, we don't have a way to know for sure whether accessing // xmlhttp.responseText is going to throw an exception. So we'll catch it. try { responseText = "\n" + Drupal.t("ResponseText: !responseText", {'!responseText': $.trim(xmlhttp.responseText) } ); } catch (e) {} // Make the responseText more readable by stripping HTML tags and newlines. responseText = responseText.replace(/<("[^"]*"|'[^']*'|[^'">])*>/gi,""); responseText = responseText.replace(/[\n]+\s+/g,"\n"); // We don't need readyState except for status == 0. readyStateText = xmlhttp.status == 0 ? ("\n" + Drupal.t("ReadyState: !readyState", {'!readyState': xmlhttp.readyState})) : ""; // Additional message beyond what the xmlhttp object provides. customMessage = customMessage ? ("\n" + Drupal.t("CustomMessage: !customMessage", {'!customMessage': customMessage})) : ""; message = statusCode + pathText + statusText + customMessage + responseText + readyStateText; return message; }; // Class indicating that JS is enabled; used for styling purpose. $('html').addClass('js'); // 'js enabled' cookie. document.cookie = 'has_js=1; path=/'; /** * Additions to jQuery.support. */ $(function () { /** * Boolean indicating whether or not position:fixed is supported. */ if (jQuery.support.positionFixed === undefined) { var el = $('<div style="position:fixed; top:10px" />').appendTo(document.body); jQuery.support.positionFixed = el[0].offsetTop === 10; el.remove(); } }); //Attach all behaviors. $(function () { Drupal.attachBehaviors(document, Drupal.settings); }); /** * The default themes. */ Drupal.theme.prototype = { /** * Formats text for emphasized display in a placeholder inside a sentence. * * @param str * The text to format (plain-text). * @return * The formatted text (html). */ placeholder: function (str) { return '<em class="placeholder">' + Drupal.checkPlain(str) + '</em>'; } }; })(jQuery); </script> </div> <div class="block" data-bid="1791"> <div class="header"> <div class="container"> <a class="logo" href="/"> <div class="header-logo"></div> </a> <div class="topbar"> <ul class="loginbar pull-right">  <li class="topbar-devider"></li> <li><i class="fa fa-globe"></i> <a href="/support/distributors">International Distributors</a></li> <li class="topbar-devider"></li> <li><a href="/contact">Contact</a></li> <li class="topbar-devider"></li> <li><a href="/blog">Blog</a></li> </ul> </div> <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-responsive-collapse"> <span class="sr-only">Toggle navigation</span> <span class="fa fa-bars"></span> </button> </div> <div class="collapse navbar-collapse mega-menu navbar-responsive-collapse"> <div class="container"> <ul class="nav navbar-nav"> <li class="dropdown 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function myFunction() { if (window.pageYOffset >= sticky) { navbar.classList.add("sticky") } else { navbar.classList.remove("sticky"); } } } }); </script></div>  <div class="breadcrumbs"> <div class="container"> <h1 class="pull-left">NASA deploys MicroStrain Wireless Sensor Network</h1> <ul class="breadcrumb"><li><a href="/">Home</a></li><li><a href="/applications">Applications</a></li><li class="active">NASA deploys MicroStrain Wireless Sensor Network</li></ul> </div> </div> <div id="main"> <div class="container-fluid"> <section id="content"> <div id="content-area"> <div class="container"> <div class="row"> <div class="col-md-3"> <div class="headline-v2 bg-color-light"><h2>Applications</h2></div> <div class="panel-pane pane-block pane-menu-menu-applications" > <ul class="list-unstyled blog-latest-posts"><h3><li><a href="/applications/autonomous-unmanned-vehicles" title="">Autonomous & Unmanned</a></li></h3> <h3><li><a href="/applications/robotics-automation" title="">Robotics & Automation</a></li></h3> <h3><li><a href="/applications/off-highway" title="">Off-Highway</a></li></h3> <h3><li><a href="/applications/map-track-survey-0" title="">Map, Track & Survey</a></li></h3> <h3><li><a href="/applications/aerospace-defense" title="">Aerospace & Defense</a></li></h3> <h3><li><a href="/applications/monitor-test-measurement" title="">Monitor, Test & Measurement</a></li></h3> </ul> </div> <div class="headline-v2 bg-color-light"><h2>Downloads</h2></div> <ul class="list-unstyled blog-latest-posts margin-bottom-50"> <div class="panel-pane pane-entity-field pane-node-field-download" > <span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://www.microstrain.com/sites/default/files/nasa_case_study.pdf" type="application/pdf; length=561725">nasa_case_study.pdf</a></span> </div> </ul> <div class="headline-v2 bg-color-light"><h2>Tags</h2></div> <ul class="list-inline tags-v1 margin-bottom-50"> <li><div class="panel-pane pane-entity-field pane-node-field-application" > <a href="/applications" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">MicroStrain Applications</a><a href="/applications/aerospace-defense" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Aerospace & Defense</a> </div></li> </ul> <div class="headline-v2 bg-color-light"><h2>Parameters</h2></div> <ul class="list-inline tags-v1 margin-bottom-50"> <li><div class="panel-pane pane-entity-field pane-node-field-parameters" > <a href="/taxonomy/term/39" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Vibration</a><a href="/strain" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Strain</a> </div></li> </ul> <div class="headline-v2 bg-color-light"><h2>Related Products</h2></div> <ul class="list-inline tags-v1 linewrap-tag margin-bottom-50"> <li><div class="panel-pane pane-entity-field pane-node-field-related-products" > <a href="/wireless-sensors/g-link" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">G-LINK</a><a href="/wireless-sensors/sg-link" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">SG-LINK</a><a href="/wireless-sensors/wsda-1500" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">WSDA-1500</a><a href="/wireless/sck" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">SensorCloud™</a> </div></li> </ul> </div> <div class="col-md-9"> <div class="news-v3 bg-color-white margin-bottom-30"> <div class="news-v3-in"> <ul class="list-inline posted-info"> <li>By <div class="panel-pane pane-entity-field pane-node-field-author-s" > Parker MicroStrain </div></li> <li>Posted <div class="panel-pane pane-entity-field pane-node-field-date" > <span property="dc:date" datatype="xsd:dateTime" content="2020-01-20T09:15:00-05:00" class="date-display-single">Monday, January 20, 2020 - 09:15</span> </div></li> </ul> <h2><div class="panel-pane pane-node-title" > <a href="/applications/nasa-deploys-microstrain-wireless-network" class="active">NASA deploys MicroStrain Wireless Sensor Network</a> </div><div class="panel-separator"></div><div class="panel-pane pane-custom pane-1" > <a class="btn btn-info" href="">Download PDF</a> </div></h2> <blockquote class="hero"> <p><em><div class="panel-pane pane-entity-field pane-node-field-summary" > A distributed network of MicroStrain’s wireless sensors and its cloud-based data management portal, SensorCloud, were used by NASA to monitor the affects of acoustic shock on Kennedy Space Center equipment. </div></em></p> </blockquote> <div class="panel-pane pane-entity-field pane-node-body" > <p><img alt="NAsa shuttle launch, uses Microstrain sensors to measure vibration" src="/sites/default/files/nasa-case-study-4.jpg" style="width: 500px; height: 361px; float: left;" title="NAsa shuttle launch, uses Microstrain sensors to measure vibration" />The noise generated by rocket exhaust during shuttle launch events generates considerable effects on the safety of spacecraft, ground facilities, and equipment.  Accumulated stress threatens the safe operation of exposed systems.  MicroStrain worked with NASA Kennedy Space Center researchers to implement a wireless sensor solution.  The solution enabled web based monitoring of far-field shuttle launch acoustics.  Test results corroborated prediction models with accurate, easily accessible field data. Furthermore, the deployed sensor network provides NASA with the foundation to implement a scalable remote sensor network capable of proactively monitoring high-value, hazardous systems.</p> <p>The overarching goal of the NASA rocket acoustics program is to monitor hazardous systems remotely.  One system of particular interest for NASA to monitor is the Composite Overwrapped Pressure Vessel (COPV) used to house various types of pressurized fluids.  COPVs are acutely subject to internal pressure and proximity to shuttle launch.  Failure of these systems poses a significant threat to mission safety and assurance.  Conventional, hardwired solutions cannot monitor the strain experienced by these hazardous systems due to limited accessibility and extreme operating conditions. NASA considered a variety of systems and found that MicroStrain’s sensing solutions met all of their requirements for this particular project.</p> <p>MicroStrain’s project with NASA focused on quantifying the effects of acoustics and vibration on far-field equipment.  Strict mission protocols prevented researchers from accessing the test area for several days before and after the launch.  Uncertainty pertaining to the timing of launch sequence initiation further complicated testing conditions.  As a result, deployed sensor systems were required to remain powered and alert in anticipation of a window of launch times.  These conditions demanded that wireless sensor networks operate on limited power while still providing a measurement frequency capable of capturing the brief but dynamic nature of launch acoustics.</p> <p><a href="http://microstrain.com/wireless"><img alt="" src="/sites/default/files/nasa-case-study-1.jpg" style="float: right; width: 320px; height: 549px;" title="" /></a><strong>Web Based Data Management</strong><br /> Continuously collecting information over this length of time generates large amounts of data that can be difficult to navigate and transfer.  Powerful data management strategies are required to identify and analyze key threshold data.  MicroStrain’s solution addressed the data collection concerns and test environment considerations presented by the NASA project through a combination of advanced power management techniques, high performance wireless nodes, and its innovative new web based data management platform, <a href="http://www.sensorcloud.com/">SensorCloud®</a>. </p> <p>By implementing a combination of MicroStrain sensors and sensor services, NASA researchers were able to remotely monitor the far-field acoustic, pressure and vibration levels of the STS-134 Endeavour and STS-135 Atlantis launches at the Kennedy Space Center.</p> <p>MicroStrain provided NASA with all the necessary hardware, software, and support to implement a <a href="http://microstrain.com/wireless">wireless sensor system</a> in this application.  The system hardware consisted of two wireless G-Link® acceleration nodes, one wireless SG-Link® strain gauge, a <a href="http://microstrain.com/wireless/wsda-base">wireless WSDA®</a> data collection base station, and SensorCloud®.  Nodes were instrumented on a cantilever plate with low natural frequency.The plate was installed on Shuttle PAD 39B which is neighboring to Shuttle  PAD 39A where the last several launchs have taken place. At this location the plate is exposed to Acoustic and vibrational launch effects approximately 7000 feet from the Shuttle liftoff  and where far-field acoustics are of interest.</p> <p>Previous calculations performed by NASA estimated the peak acousitc loads at various distances, however, these levels were not used for determining damage effects. </p> <p>After the successful departure of the spacecraft, data reduction was used to isolate the sensor data for the launch event.  Initially, data was collected on a local PC.  As a result of the five day measurement timeframe, the computer collected in excess of 3 gigabytes worth of information.  NASA addressed the issue of viewing, navigating, and sharing such large amounts of data by uploading it to SensorCloud.  On SensorCloud,  MicroStrain support engineers collaborated with NASA researchers to seek and analyze key threashold data. Two sets of acceleration data from MicroStrain SG-Link strain gauges clearly indicated peak vibration levels. Results enabled NASA to compute the equivalent static load developed by the rocket and correlate the data to analyze predictions.</p> <p><strong>Scalable Platform</strong><br /> <img alt="" src="/sites/default/files/nasa-case-study-3.jpg" style="width: 300px; height: 457px; float: left;" title="" />Beyond model validation, the value of the described sensor network to NASA researchers includes the capability to wirelessly scale across a multitude of locations and equipment types.  Wireless networks can be implemented where researchers do not have the access required to maintain wired networks.</p> <p>In this way, MicroStrain’s sensor solution is capable of saving valuable NASA resources by proactively measuring strains exerted on high-value and potentially hazardous assets, such as COPVs. Smart data managment reduces potential maintenance costs and prevents premature replacement or failure.  The result enables improved safety of monitored components and is a tool to support any issues of availability and maintainability of equipment and structures by condition.</p> <p><strong>Acknowledgements</strong><br /> The author thanks Rudy Werlink and Ravi Margasahayam of NASA Kennedy Space Center for sharing their application details and experience for this case study.</p> <p>This paper does not represent an endorsement of any particular product or application by NASA.</p> </div> </div> </div> </div> </div> </div> </div> </section> </div> </div> <div class="block" data-bid="1556"> <style> .shop-product-prices, .price, #price, #cart-form-products { display: none; } .mouser.where-to-buy-btn.row { display: none; } </style> <script> (function($) { var protocol = location.protocol; var slashes = protocol.concat("//"); var host = slashes.concat(window.location.hostname); var ipJson, countryJson; // Function to check if the current page is either nodes or gateways function isExemptPage() { var currentPath = window.location.pathname; // Add conditions for pages where the script should be turned off return currentPath.includes("/nodes") || currentPath.includes("/gateways"); } // Only run the logic if we are NOT on exempt pages if (!isExemptPage()) { $.getJSON("https://api.ipify.org?format=jsonp&callback=?", function(json) { ipJson = json; var ip = ipJson.ip; //console.log("Success! 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