Title :
Characteristics of ultrasonic micromachined capacitance transducers in water
Author :
Bashford, A.G. ; Schindel, D.W. ; Hutchins, D.A.
Author_Institution :
Dept. of Eng., Warwick Univ., Coventry, UK
Abstract :
Investigations into the characteristics of water-coupled ultrasonic capacitance transducers have been performed for a range of transducer configurations. The radiated fields have been scanned in water using a miniature hydrophone detector, and the results compared to theory based on a plane piston approach. Additionally, the transducer has been used in pulse-echo mode and a C-scan performed to image an artificial defect in a Plexiglas plate
Keywords :
capacitance; flaw detection; micromachining; microsensors; ultrasonic imaging; ultrasonic materials testing; ultrasonic transducers; C-scan; Plexiglas plate; US micromachined capacitance transducers; artificial defect imaging; miniature hydrophone detector; plane piston approach; pulse-echo mode; water-coupled US transducers; Aerospace materials; Bandwidth; Biomembranes; Capacitance; Electrostatics; Piezoelectric transducers; Pistons; Sonar equipment; Ultrasonic transducers; Water;
Conference_Titel :
Ultrasonics Symposium, 1996. Proceedings., 1996 IEEE
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-3615-1
DOI :
10.1109/ULTSYM.1996.584149
