基于宏弯损耗原理的光纤微力传感器  

Optical Fiber Micro-force Sensor Based on Macro-bend Loss

作　　者：杨毅[1] YANG Yi(School of Mechanical Engineering,Hubei University of Technology,Wuhan 430068,China)

机构地区：[1]湖北工业大学机械工程学院,湖北武汉430068

出　　处：《仪表技术与传感器》2022年第11期12-16,共5页Instrument Technique and Sensor

摘　　要：针对微操作/微装配系统中夹持力和装配力微小、不易感测,且微器件易变形、断裂等问题,设计一种基于宏弯损耗原理的光纤微力传感器,用于微力传感。建立了光纤微力传感器测量微小力的传感方程,仿真研究了微力传感器结构参数对传感性能的影响,并通过测试验证了理论模型的正确性。结果表明:基于宏弯损耗的光纤微力传感器可实现微小力的绝对测量,并且可以通过优化光纤微力传感器的结构参数,实现分辨率和测量范围的调整。文中研制的光纤微力传感器,分辨率可达6 mN。In the micromanipulation/micro-assembly systems, aiming at the problems that the gripping and assembly forces are too small to perceive, and the micro components are prone to deformation and fracture, an optical fiber micro-force sensor based on the macro-bend loss principle was designed for micro-force sensing.The sensing equation of the optic fiber micro-force sensor for measuring small forces was established, and the influence of structural parameters of the micro-force sensor on the sensing performance was studied in simulation, and the correctness of the theoretical model was verified by testing.The results show that the optic fiber micro-force sensor based on macro-bend loss can achieve absolute measurement of micro-forces, and the resolution and measurement range can be adjusted by optimizing the structural parameters of the fiber optic micro-force sensor.The optic fiber micro-force sensor developed in the experiment can reach a minimum resolution of 6 mN.

关 键 词：光纤传感 宏弯损耗 微力传感器 微力测量 

分 类 号：TN818[电子电信—信息与通信工程] TN253