磁致伸缩位移传感器的研究与应用  

Magnetostrictive Torsional Displacement Sensor Research and Appalication

作　　者：李怀洲[1] 孙海燕[1] 罗祖顺[1] 杨永才[1] 

机构地区：[1]上海理工大学光学与电子信息工程学院,上海200093

出　　处：《电气自动化》2005年第5期58-59,66,共3页Electrical Automation

基　　金：上海理工大学学生创新基金资助

摘　　要：介绍磁致伸缩传感器的工作原理及实现机制,此传感器利用磁致伸缩效应,根据发射端的激励脉冲电流,产生脉冲磁场,计算发射脉冲与回波信号的时间差计算活动磁铁的位置,由于磁致伸缩材质和扭转波的传播特性,以及电子测量电路对于精确测时功能实现,使得该传感器同时具有精度高、测量大位移、寿命长、安装简便,适用范围广等优点。Introducing the principle, which the magnetostrictive displacement sensor is based on, and its technique of design. The sensor by use of magnetostrictive effect, according to excitation pulse current of the transmit side, produces the magnetic pulse and accurately measures out the position of movable magnet by the time intervals between the transmit pulses and the echo pulses. Magnetostrictive torsional displacement sensor developed with this technique has a much better precision, long displacement, longer life-span and more convenient to install.

关 键 词：磁致伸缩 扭转波 测量电路 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]