Transmission intensity modulation optical fiber sensor

Abstract

An optical fiber of intensity modulation and light transmission type consists of two pieces of optical fibers, two switching ¿C in ends of optical fibers, two supporting units for supporting two switching ¿C in ends and jacket being used for elastic deformation. It features that two supporting units are fixed in jacket and two switching ¿C in ends of optical fibers are set opposite to each other with gap between them.

Description

technical field [0001] The present invention relates to sensors, especially sensors for detecting deformation of objects. Background technique [0002] At present, my country's highway traffic is developing rapidly, and the number of roads and bridges is increasing, which makes the condition monitoring and maintenance of roads and bridges more and more a heavy and complicated task. In the past, we used traditional stress sensors to measure the loading of roads and bridges, such as the high-precision steel string pore water pressure sensor with patent number 02289947.2. These sensors are often not accurate enough and have high requirements for the working environment, so the scope of application small. [0003] In addition, today's society has entered the information age characterized by optical fiber communication technology. Optical fiber sensing technology represents the development trend of a new generation of sensors. It is characterized by high technical content, good ...

AI Technical Summary

Problems solved by technology

In the past, we used traditional stress sensors to measure the loading of roads and bridges, such as the high-precision steel string pore water pressure sensor with patent number 02289947.2. These sensors are often not accurate enough and have high requirements for the working environment, so the scope of application Small

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