新型位移电涡流传感器设计  

Design for new displacement electric eddy current sensor

作　　者：张尚坤[1] 

机构地区：[1]广西师范大学科技处,广西桂林541004

出　　处：《现代电子技术》2013年第8期140-142,共3页Modern Electronics Technique

摘　　要：电涡流传感器具有对介质不敏感、非接触、全方位智能测量等特点,广泛应用于对金属的距离检测中。为提高普通电涡流传感器的灵敏度和增大检测距离,设计了一种新型非接触宽线性范围的位移电涡流传感器。实验结果表明,当电涡流传感器的探头直径为50 mm时,测量位移在2～29.5 mm之间线性度较好,在0～2 mm和29.5～35 mm中存在一定的非线性。Electric eddy current sensor has the characteristics of insensitivity to medium, noncontact and all-azimuth intelli- gent measurement, so it is widely used in the mental distance test. In order to improve the sensitivity and increase the detecting distance of common eddy current sensor, a new eddy current sensor with non-contact wide linear range was designed. The result of experiment shows that when the probe diameter of the sensor is 50 mm, the measuring displacement at 2~29.5 mm has good linearity, but at 0-2 mm and 29.5~ 35 mm is nonlinear.

关 键 词：电涡流传感器 探头 测量电路 非接触测量 

分 类 号：TN911.34[电子电信—通信与信息系统] TP216[电子电信—信息与通信工程]