电涡流传感器激励信号源设计

Eddy Current Sensor Excitation Signal Source Design

在电涡流检测系统中,电涡流传感器需正弦信号加以激励。激励信号源是检测系统的关键部分之一。介绍了电涡流传感器信号激励源电路的工作原理,可以给电涡流传感器的并联谐振回路提供稳频稳幅的正弦信号。实验表明,该激励信号源电路能够满足电涡流传感器的需求,使涡流传感器能够稳定地工作。

In eddy current testing system, the eddy current sensor needs to be excited by a sinusoidal signal. The excitation source is one of the key parts in the detection system. The article describes the working principle of the eddy current sensor signal source circuit, which can provide a stable amplitude and frequency of the sinusoidal signal for the eddy current sensor. The experiments resuit show that the excitation signal source circuit meets the needs of the eddy current sensor. It can make the eddy current sensor operate smoothly.