Principle and Design of Optical Fiber Angular Displacement Sensor Based on Sensitive Fabry-Perot Cavity
基于敏感Fabry-Perot腔光纤角位移传感器的原理与设计

A novel optical fiber angular displacement which can be used to measure micro angular displacement (second level) and all angle continuously is introduced.Basing on the principle of micro resonance cavity, especially on optical Fabry-Perot cavity,the linear relation between beam intensity and angular displacement with special beam has been researched.By using of optical fiber technology, sensing technology and micro mechanical technology,the sensor used in some special circumstance is produced for measuring angular displacement accurately.