4～20mA导电塑料角位移电流输出传感器的开发

介绍了4—20mA导电塑料角位移传感器的原理及开发背景，该产品结构由导电塑料分压器和微电路模块组成，分层可拆并连成一体，四线制，通过输入5—24v直流电压后，能直接输出4—20mA高精度电流信号，工作角度在60°－340°范围内可调。作为一种新型的高性能传感器，以其高精度、高寿命、高输出平滑性、高分辨力和抗高频电磁干扰能力的产品特点。在许多领域取代了无接触式差动变压器和精密线绕电位器。

Development of 4 -20mA Current Output Conductive Plastic Rotary Displacement Sensor

Introducing the principle and development background of 4 - 20mA conductive plastic rotary displacement sensor. Summarizing the structure of this sensor, which is consisted of conductive plastic voltage divider and microcircuit module, in layering four-wire type, can be dismantled and imegrated. Through 5 - 24V. DC input, it earl direct output high-precision 4- -20mA current signal, and the workable angle is among 60° - 340° degrees that can be adjusted. As a new type high-performance sensor, for its high-accuracy, high operating life, high output smoothness, high resolution and high frequent electromagnetism anti-interference features, it is widely used to instead of no-contacting differential transformer and precise wire-wound potentiometer in many fields.