航天伺服电位计式位移传感器阻值影响分析

Resistance Impact Analysis of Aerospace Servo Potentiometer Type Displacement Sensor

摘要:

航天伺服电位计式位移传感器是一种广泛应用在军工，航空航天等领域的传感元件，主要用于伺服系统的信号测量和反馈, 其性能直接影响伺服系统控制精度。随着航天技术的日益发现，箭弹总体对于伺服系统的控制精度的要求越来越高。为了提高电位计式位移传感器的输出精度，对电位计式位移传感器的自身各项阻值指标线性度.不对称电阻和引出电阻进行数学建模，得出了传感器各项阻值定义之间的关系。通过对传感器各阻值指标指标，外界环境条件以及传感器结构，材料对传感器的输出精度造成误差影响分析，给出工程应用建议，提高了传感器的工作可靠性，对伺服推力矢量系统的发展具有重要意义。

Abstract:

The aerospace servo system potentiometer displacement sensor is a sensor widely used in military, aerospace and other fields. It is mainly used for signal measurement and feedback of servo system ,the performance of sensor affects the control precision of the servo system directly. With the development of aerospace technology, the requirement of control precision for servo system of rockets and missiles is higher and higher. In order to improve the output precision of potentiometer displacement sensor, the mathematical models of the linearity, asymmetric resistance and induced resistance of the potentiometer displacement sensor are established, and the relationship between the definitions of the resistance values of the sensor is obtained. Through the analysis of the influence of resistance index, external environment condition, sensor structure and material on the output accuracy of the sensor, the engineering application suggestions are given to improve the reliability of the sensor, which is of great significance to the development of servo thrust vector system.