基于光纤力传感器的经纱张力测试系统

 针对织机经纱张力测试系统存在的缺陷，设计了基于光纤力传感器的经纱张力测试系统。其中包括：基于F-P光纤应变计的力传感器及弹性体、光电转换系统；基于F-P光纤应变计的力传感器。光源电路设计采用APC电路。APC电路由2个运算放大器和晶体管以及外围电路组成，采用背向光反馈自动偏置控制方式。对光纤力传感器进行静态特性标定试验。结果表明：这种传感器具有较高的测量精度；在YC426型喷气织机安装光纤力传感器经纱张力测试系统进行经纱张力测试，取得了良好的测试效果。

Development of testing system of warp tension based on optical fiber force sensor

Due to the defects associated with the warp tension testing system,this paper designs a new testing system of warp tension based on optical fiber force sensor,which contains a force sensor based on F-P optical fiber strain,elastic structure and photoelectric conversion system.APC circuit was used in the light source circuit of the optical fiber force sensor.The APC circuit was made up by two operational amplifiers,transistor and periphery circuit,which adopts backward photorefractive feedback offset control...