一种磁致伸缩位移传感器的优化设计方法

摘要

介绍了磁致伸缩直线位移传感器的测量原理，对传感器中的关键电路进行了优化。在激励脉冲发生装置的设计中，提出了一种低成本、低功耗且兼顾脉冲质量的实现方案。在回波信号拾取装置的设计中，确定了其中关键参数。在计时装置的设计中，提出了一种简单同时满足精度要求的计时方案。经过优化的传感器具有很好的静态特性，且具有低成本、低功耗、多接口等优点。%The measurement principle of magnetostriction linear displacement sensor is introduced,on the key circuit of the sensor is optimized. In the design of excitation pulse generator,this paper proposes a low-cost,low-power and pulse quality implementation scheme. In the design of the echo signal pick-up device,analyzes the factors that affect pick up the signal,further identified the key parameters. In the design of timing device,this paper proposes a simple and at the same time meet the accuracy requirement of timing plan. The optimized sensors have good static charac-teristics and the advantages of low cost,low power consumption and multi-interface and so on.