摘要
为了消除普通电涡流传感器对被测材料的敏感性,文中对7种不同的被测材料进行了实验。通过处理实验数据,提出了一种能够消除敏感性的投影变换方法,在数学理论上分析论证了该方法,并给出了一种可以用电路实现该方案的总体构想,介绍了电路中主要组成部分的功能。
In order to eliminate the sensitivity between common eddy current sensor toward the pending-tested materials, this paper covered the experiments using seven different pending-tested materials. According to processing experimental data, the projection-changing approach which can erase the material sensitivity was put forward. Moreover, this paper analyzed and demonstrated the approach based on mathematical theory, and then introduced a structural and general thought which can make use of circuit to realize the scheme with introducing the functions of main components in this circuit.
出处
《仪表技术与传感器》
CSCD
北大核心
2009年第10期13-15,24,共4页
Instrument Technique and Sensor
基金
国家"863"计划资助项目(2007AA04Z434)
关键词
电涡流传感器
材料敏感性
无关性
投影电路
移相器
eddy current sensor
material sensitivity
independence
project circuit
phase shifter