{"id":203,"date":"2007-01-29T10:50:01","date_gmt":"2007-01-29T10:50:01","guid":{"rendered":"http:\/\/www.jpyro.com\/wp\/?p=203"},"modified":"2007-01-29T10:50:01","modified_gmt":"2007-01-29T10:50:01","slug":"a-ground-test-rocket-thrust-measurement-system","status":"publish","type":"post","link":"https:\/\/www.jpyro.co.uk\/?p=203","title":{"rendered":"A Ground Test Rocket Thrust Measurement System"},"content":{"rendered":"<p align=\"left\"><strong>Mary Fran Desrochers, Gary W. Olsen, and M. K. Hudson<\/strong><\/p>\n<p align=\"left\"><strong>ABSTRACT:<\/strong> A strain gauge thrust measurement system is described for rocket motor ground testing. The unit uses sigmoid beams to hold the rocket motor in place, with the strain gauges mounted on these beams. The theory and usage of strain gauges is briefly discussed, along with all circuit and other information necessary to build a similar system. The system was calibrated for the 50 lb thrust level and applied to the UALR Hybrid Rocket Facility. Its performance&nbsp;characteristics are discussed. The system was found suitable for continuous monitoring in such a ground testing environment, and indicated that the hybrid thruster utilized in the facility develops 41 lbf thrust at an oxidant mass flow of 0.125 lbm.<\/p>\n<p align=\"left\"><strong>Keywords:<\/strong> rocket ground testing, thrust sensor, combustion diagnostics, strain gauge, hybrid rocket<\/p>\n<hr \/>\n<p><em><strong>Ref:<\/strong> JPyro, Issue 14, 2001, pp50-55<br \/> (J14_50)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mary Fran Desrochers, Gary W. Olsen, and M. K. Hudson ABSTRACT: A strain gauge thrust measurement system is described for rocket motor ground testing. The unit uses sigmoid beams to hold the rocket motor in place, with the strain gauges mounted on these beams. The theory and usage of strain gauges is briefly discussed, along &hellip;<br \/><a href=\"https:\/\/www.jpyro.co.uk\/?p=203\" class=\"more-link pen_button pen_element_default pen_icon_arrow_double\">Continue reading <span class=\"screen-reader-text\">A Ground Test Rocket Thrust Measurement System<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[2,29],"tags":[],"_links":{"self":[{"href":"https:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/203"}],"collection":[{"href":"https:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jpyro.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=203"}],"version-history":[{"count":0,"href":"https:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/203\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.jpyro.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=203"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jpyro.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=203"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jpyro.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=203"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}