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《Laser Journal》 2002-01
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The design of a miniature optical fiber fluid pressure sensor

Ouyang Fangping 1 Kang Hongxiang 2 Zhu Shenjun 2 ( 1Department of Mathematics,Physics and Mechanics,Central South University,Changsha 410075) ( 2Physics Teaching and Research Section,Beijing Army Medical College,Beijing 100071)  
This paper attempts to deal with the design approach of a miniature optical fiber pressure sensor.By using two optical fibers as the sender and receiver of the optical signal respectively,and putting multiple sensors in one conduit orderly,this kind of sensor can measure the pressure accurately with small-sized structure.Because of its small volume,light weight and the characteristics of unsensitive to electromagnetic field and chemistry reaction,this sensor has important application value in solving the real-time control of pressure.In this paper,firstly,we introduce the design requirement of the miniature optical fiber pressure sensor and its present design plan,then we illustrate that the direction of the fiber has an essential effect in the design of the sensor and we present one design scheme-using silica gel as the pressure inverting element,and finally this scheme is proved from static and dynamic features.
【CateGory Index】: TP212.1
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