一种新型静电场传感器的设计

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.