{"id":1294,"date":"2015-06-02T08:11:34","date_gmt":"2015-06-01T18:11:34","guid":{"rendered":"http:\/\/commons.pratt.edu\/open-source\/?p=581"},"modified":"2015-06-02T08:11:34","modified_gmt":"2015-06-01T18:11:34","slug":"arduino-based-rc-thrust-dyno","status":"publish","type":"post","link":"https:\/\/www.kornequipped.com\/blog\/?p=1294","title":{"rendered":"Arduino Based RC Thrust Dyno"},"content":{"rendered":"\n<p>It&#8217;s getting nice out and it&#8217;s time to start thinking about playing outside again.<\/p>\n\n\n\n<p>I have a few RC Airplanes. Some older ones like a nitro powered sig cadet or these foam bodied electric ducted fans shown here&#8230;<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/arduino\/rc_dyno\/IMG_0063.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>Since these are electric I can test them indoors. I threw together this little board with a load cell to measure the actual thrust. This makes it easy to compare motors, batteries and props.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/arduino\/rc_dyno\/IMG_0060.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>Instead of a radio I just use a servo tester to control the throttle.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/arduino\/rc_dyno\/IMG_0061.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>Then I added a little hall effect current probe to measure the motor voltage and current.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/arduino\/rc_dyno\/IMG_0057.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>Right now it still connects by USB but I added an ESP board for Wifi&#8230;<\/p>\n\n\n\n<p>Graphing is handled by MakerPlot software&#8230;<\/p>\n\n\n\n<p>Next addition will be Dallas one wire temperature sensors for the motor, controller, and battery.<\/p>\n\n\n\n<p>Then I will extend it for nitro powered models with a thermocouple input, and tachometer sensor.<\/p>\n\n\n\n<p>Here&#8217;s a run with a nice smooth single motor prop plane.<\/p>\n\n\n<div style=\"width: 640px;\" class=\"wp-video\"><!--[if lt IE 9]><script>document.createElement('video');<\/script><![endif]-->\n<video class=\"wp-video-shortcode\" id=\"video-1294-1\" width=\"640\" height=\"360\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/arduino\/rc_dyno\/IMG_3540%20-%20Broadband.m4v?_=1\" \/><a href=\"https:\/\/es.pratt.edu\/Commons\/Images\/arduino\/rc_dyno\/IMG_3540%20-%20Broadband.m4v\">https:\/\/es.pratt.edu\/Commons\/Images\/arduino\/rc_dyno\/IMG_3540%20-%20Broadband.m4v<\/a><\/video><\/div>\n\n\n\n<p>And here&#8217;s a dual motor ducted fan jet with one motor stalling from a galled bearing.(yes, the bearing sound was horrific)<\/p>\n\n\n<div style=\"width: 640px;\" class=\"wp-video\"><video class=\"wp-video-shortcode\" id=\"video-1294-2\" width=\"640\" height=\"360\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/arduino\/rc_dyno\/IMG_3538%20-%20Broadband.m4v?_=2\" \/><a href=\"https:\/\/es.pratt.edu\/Commons\/Images\/arduino\/rc_dyno\/IMG_3538%20-%20Broadband.m4v\">https:\/\/es.pratt.edu\/Commons\/Images\/arduino\/rc_dyno\/IMG_3538%20-%20Broadband.m4v<\/a><\/video><\/div>\n\n\n\n<p>the current is a bit jumpy so I will have to add a smoothing cap to the sensor..<\/p>\n","protected":false},"excerpt":{"rendered":"<p>It&#8217;s getting nice out and it&#8217;s time to start thinking about playing outside again. I have a few RC Airplanes. Some older ones like a nitro powered sig cadet or these foam bodied electric ducted fans shown here&#8230; Since these are electric I can test them indoors. I threw together this little board with a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-1294","post","type-post","status-publish","format-standard","hentry","category-arduino"],"_links":{"self":[{"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1294","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1294"}],"version-history":[{"count":0,"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1294\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1294"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1294"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1294"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}