Results 271 to 280 of about 4,479,393 (285)
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An air-coupled line-focused capacitive ultrasonic transducer
A new type of air-coupled, line-focusing transducer is described. This capacitive broadband device, with an active area measuring 19.5mm x 45mm, consists of a metallised 3.5mm thick polymer film mounted over a brass backplate cylindrically concave along its length, with a radius of 28mm.openaire +1 more source
Capacitive and Piezoelectric Air-Coupled Transducers for Resonant Ultrasonic Inspection
Ultrasonics, 1996D W Schindel, D A Hutchins
exaly
Broadband Air-Coupled Capacitance Transducers and their Applications
The Reference Collection of Annual Meeting, 2000openaire +1 more source
Radiated Fields of an Air-Coupled Ultrasonic Capacitance Transducer
Ultrasonics, 1996D W Schindel, D A Hutchins
exaly
Radiated fields of rectangular air-coupled micromachined transducers
The radiated fields of surface micromachined capacitive transducers, with single element sizes in the 2-5 mm range, have been measured experimentally. The transducers have been fabricated using a low temperature CMOS compatible process, and consist of a single metallised PECVD silicon nitride membrane (of typically 1 mum thickness), separated by a 1-2 ...openaire +1 more source
Air-Coupled MUMPs Capacitive Micromachined Ultrasonic Transducers With Resonant Cavities
Ultrasonics, 2012francisco Montero de Espinosa
exaly
Ultrasonic Imaging of Solid Surfaces Using a Focussed Air-Coupled Capacitance Transducer
Ultrasonics, 1998D W Schindel
exaly