Title :
Study and development of a multichannel ultrasonic sensor
Author :
Grappin, Florerice ; Delaye, Plzilippe ; Roosen, Gérald
Author_Institution :
Lab. Charles Fabry de l´´Inst. d´´Opt., Univ. Paris, Orsay, France
Abstract :
In this paper, the implementation and the characterization of this multichannel photorefractive ultrasonic sensor is presented. The multichannel photorefractive ultrasonic sensor uses single photorefractive crystal and a linear matrix photodetector. The characterization is based on the presence of possible cross-talk between the channels. And different possible configurations for the wave-mixing in the photorefractive crystal are also studied.
Keywords :
acousto-optical devices; optical crosstalk; photodetectors; photorefractive materials; ultrasonic materials testing; ultrasonic transducers; cross-talk; linear matrix photodetector; multichannel photorefractive ultrasonic sensor; photorefractive crystal; wave-mixing; Delay; Detectors; Gratings; Laser excitation; Materials testing; Nondestructive testing; Photodetectors; Photorefractive effect; Photorefractive materials; Sensor phenomena and characterization;
Conference_Titel :
Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on
Print_ISBN :
0-7803-7734-6
DOI :
10.1109/CLEOE.2003.1313553
