磁栅式防水数显卡尺的设计  

Design of Water-proofing Calipers Based on Magnetic Grating Transducer

作　　者：王孝[1] 姜迎春[1] 王玉花[1] 沈传兵[1] 

机构地区：[1]北京航天试验技术研究所,北京100074

出　　处：《仪表技术与传感器》2012年第3期1-2,共2页Instrument Technique and Sensor

摘　　要：针对电容传感器对介质介电常数敏感,无法工作在液体环境下的缺点,提出了一种基于磁敏电阻的的栅式位移传感器设计方案,并设计了相应的位移传感器,给出了相关电路结构和机械结构,实现了电路集成。经理论和实验证明:该传感器具有较高的测量灵敏度和分辨率、较大的测量范围以及良好的防水性能。In view of the unmeasured disadvantage of the capacitive sensors under the liquid condition,because its sensitivity to the dielectric constant of a medium,a new sensor design project according to magnetic resistance was presented with magnetic grating structure,and the relative sensor was designed.Its circuit and mechanical architechture were introduced,and the integrating circuit was realized.It is demonstrated theoretically and experimentally that this kind of indicator possesses high sensitivity,resolution and good liquid resistant effect.

关 键 词：磁栅式位移传感器 防水 卡尺 

分 类 号：TP212.1[自动化与计算机技术—检测技术与自动化装置]