Title :
Distance detection with optical fiber extrinsic fabry-perot interference ultrasonic sensor
Author :
Sun, Qingguo ; Chen, Na ; Ding, Yuetong ; Chen, Zhenyi ; Wang, Tingyun
Author_Institution :
Key Lab of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai, 200072, China
Abstract :
In this paper, we proposed an optical fiber extrinsic Fabry-Perot interferometer (EFPI) sensor for distance detection of ultrasound signal. This optical fiber EFPI sensor was fabricated with a novel and simple technics. In the experiments, both traditional piezoelectric transducer (PZT) and high voltage electrode discharge were used as the ultrasound signal source. The experimental results indicate that strong ultrasound signals can be detected by the fiber EFPI senor in both cases and the maximum detection distance in the air is more than 180cm.
Keywords :
acousto-optics sensors; extrinsic Fabry-Perot interferometer; optical fiber sensors;
Conference_Titel :
Wireless Mobile and Computing (CCWMC 2009), IET International Communication Conference on
Conference_Location :
Shanghai, China
