摘要
介绍了一种新型静电场传感器的原理,以Cortex-M3为内核的STM32微处理器为控制核心,利用旋转来破坏所处的静电平衡状态,从而捕捉到其瞬态过程的信号变化,在通过对原始信号的运算放大、A/D转换,最终完成了标定所在当前区域的电场强度,同时机械磨损也大幅度降低。
A new principle about electrostatic field sensor is introduced. With STM32 microprocessor as the control core and Cortex- M3 as the kernel, by means of rotation to break the electrostatic equilibrium, the signal changes in the transient process are cap- tured. Through the operational amplification and A/D conversion of the original signal, the electric field intensity calibration in the re- gion is obtained. The mechanical wear is greatly reduced.
出处
《机械制造与自动化》
2016年第3期197-198,共2页
Machine Building & Automation
关键词
静电平衡
瞬态过程
标定
electrostatic equilibrium
transient process
calibration
