00000nam 2200000zi 4500 9.953828 CaOODSP 20250916112123 m o d f cr |n||||||||| 250806e199407 bccad obt f000 0 eng d CaOODSP eng rda CaOODSP n-cn--- DR52-11/16-1994E-PDF Hardy, Gordon, author. Transforming an ultrasonic digitizer into an accurate three-dimensional position measurement system for robotic aplications / by Gordon Hardy. Victoria, B.C. : Defence Research Establishment Pacific = Centre de recherches pour la défense pacifique : Research and Development Branch, Department of National Defence, July 1994. 1 online resource (11, 1, 2, 1 pages, 3 unnumbered pages) : illustrations, charts. text txt rdacontent computer c rdamedia online resource cr rdacarrier Technical memorandum ; 94-113 Digitized edition from print [produced by Defence Research and Development Canada]. Includes bibliographical references (page 21). "The Nondestructive Evaluation Group at the Defence Research Establishment Pacific (DREP) has transformed a commercial ultrasonic digitizer into an accurate three-dimensional position measurement system to guide a surface scanning robot. Four ultrasonic receivers were configured to produce the three dimensional position of an ultrasonic transmitter. By using a second transmitter to measure the speed of sound, the accuracy of the commercial digitizer was improved by a factor of five"--Abstract. Airplanes Inspection. Robotics. Ultrasonic equipment. Avions Inspection. Robotique. Appareils à ultrasons. Defence Research Establishment Pacific, issuing body. Canada. Department of National Defence. Research and Development Branch, issuing body. Technical memorandum (Defence Research Establishment Pacific) 94-113. (CaOODSP)9.936067 PDF 731 KB https://publications.gc.ca/collections/collection_2025/rddc-drdc/DR52-11-16-1994-eng.pdf