{"id":29,"date":"2009-08-21T15:29:11","date_gmt":"2009-08-21T22:29:11","guid":{"rendered":"http:\/\/www.giassa.net\/?p=29"},"modified":"2009-08-21T15:29:53","modified_gmt":"2009-08-21T22:29:53","slug":"impedance-analyzer-automation-system","status":"publish","type":"post","link":"https:\/\/www.giassa.net\/?p=29","title":{"rendered":"Impedance Analyzer Automation System"},"content":{"rendered":"<p>Over the past year I have been doing a considerable amount of research in the field of biomaterials and electrical impedance tomography (EIT). EIT allows for an impedance map of a material under study to be generated rapidly using an impedance analyzer or similar instrument.\u00a0 I have since produced a conference paper on this subject with respect to its applications in breast cancer screening at an IEEE conference earlier this year. Before I gained such interest in the subject, I started out as a volunteer, designing interfaces and GUIs for lab equipment used in the engineering labs at SFU.<\/p>\n<p>My first major task: take an HP\/Agilent 4192A low frequency impedance analyzer, with a GPIB interface, and design a system that allows it to interface with a modern PC via USB, and:<\/p>\n<ul>\n<li>Provide a GUI that allows for all features of the impedance analyzer to be controlled via software<\/li>\n<li>Automate frequency sweep and current-voltage sweeps, recording the data for future analysis<\/li>\n<li>Generate plots, such as Cole-Cole plots, Bode plots, and so on<\/li>\n<\/ul>\n<p>After several weeks of development, I finally designed an application that did just this: GPIBcmd (General Purpose Interface Bus CoManD). With this system in place, the entire system is handled with ease via a small netbook running Windows XP or Linux (I designed it for both OS&#8217;s, Windows screen shot shown below).<\/p>\n<div id=\"attachment_30\" style=\"width: 504px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-30\" class=\"size-full wp-image-30\" title=\"GPIBcmd - Main Interface\" src=\"https:\/\/www.giassa.net\/wp-content\/uploads\/2009\/08\/1-Application.jpg\" alt=\"The main menu for the application\" width=\"494\" height=\"415\" srcset=\"https:\/\/www.giassa.net\/wp-content\/uploads\/2009\/08\/1-Application.jpg 494w, https:\/\/www.giassa.net\/wp-content\/uploads\/2009\/08\/1-Application-300x252.jpg 300w\" sizes=\"auto, (max-width: 494px) 100vw, 494px\" \/><p id=\"caption-attachment-30\" class=\"wp-caption-text\">The main menu for the application<\/p><\/div>\n<p>The system utilizes a ProLogix GPIB-USB controller, and the control and GUI code I designed. The software I designed was made with modularity in mind. It can be easily extended to allow for other Agilent devices that utilize GPIB to be controlled in a similar manner.\u00a0 Finally, it generates 2D plots as shown below.<\/p>\n<div id=\"attachment_31\" style=\"width: 650px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-31\" class=\"size-full wp-image-31\" title=\"Sample Cole-Cole Plot\" src=\"https:\/\/www.giassa.net\/wp-content\/uploads\/2009\/08\/2-output.jpg\" alt=\"Sample Cole-Cole Plot\" width=\"640\" height=\"480\" srcset=\"https:\/\/www.giassa.net\/wp-content\/uploads\/2009\/08\/2-output.jpg 640w, https:\/\/www.giassa.net\/wp-content\/uploads\/2009\/08\/2-output-300x225.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><p id=\"caption-attachment-31\" class=\"wp-caption-text\">Sample Cole-Cole Plot<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Over the past year I have been doing a considerable amount of research in the field of biomaterials and electrical impedance tomography (EIT). EIT allows for an impedance map of a material under study to be generated rapidly using an &hellip; <a href=\"https:\/\/www.giassa.net\/?p=29\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,4],"tags":[],"class_list":["post-29","post","type-post","status-publish","format-standard","hentry","category-biomed","category-compeng"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.giassa.net\/index.php?rest_route=\/wp\/v2\/posts\/29","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.giassa.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.giassa.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.giassa.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.giassa.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=29"}],"version-history":[{"count":3,"href":"https:\/\/www.giassa.net\/index.php?rest_route=\/wp\/v2\/posts\/29\/revisions"}],"predecessor-version":[{"id":34,"href":"https:\/\/www.giassa.net\/index.php?rest_route=\/wp\/v2\/posts\/29\/revisions\/34"}],"wp:attachment":[{"href":"https:\/\/www.giassa.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=29"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.giassa.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=29"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.giassa.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=29"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}