摘要
分析了一种新型三级式差动位移传感器的基本结构 ,运用电磁场理论和互感原理 ,建立了传感器输入 -输出特性的线性数学模型 ,给出了线性范围和灵敏度的计算公式。基于该数学模型 ,优化设计了高可靠性、高稳定性的信号调理电路 ,并在聚焦元件自动测量系统中得到了实际应用。
This paper analyzes the basic structure of a new three-section differential displace inductance sensor. Using the electromagnetic theory and the mutual inductance, the linear mathematics model of input-output characteristic is established. The calculation formulas of the linear range and the sensitivity are given. Based on this mathematics model, the optimum signal-processing circuit, having high reliability and high stability, is designed and applied to the automatic measurement system of the focusing units.
出处
《传感技术学报》
CAS
CSCD
2004年第3期410-413,370,共5页
Chinese Journal of Sensors and Actuators
关键词
差动位移传感器
数学模型
信号调理
differential displacement inductance sensor
mathematics model
signal-processing