CAJ | 학술논문

设计了一种地面电场仪的自检电路，对电场仪测量的电场值精度进行自动监测，保证其探测稳定性。电路由顺序连接的电场仪控制器、D/A 转换器、模拟开关、放大器和标定电极板等组成，将标定电极板生成的电场值与电场仪实测电场值进行比较，检测二者误差是否在精度范围内，从而实现自检功能。
설계료일충지면전장의적자검전로，대전장의측량적전장치정도진행자동감측，보증기탐측은정성。전로유순서련접적전장의공제기、D/A 전환기、모의개관、방대기화표정전겁판등조성，장표정전겁판생성적전장치여전장의실측전장치진행비교，검측이자오차시부재정도범위내，종이실현자검공능。
A self test circuit of ground electri-cal field instrument is designed,which can auto-matic monitoring the accuracy of the measured e-lectric field value of the electric field instrument to ensure the detection stability.The circuit formed connecting by the electric field instrument control-ler,D/A converter,analog switch,the amplifier, and the calibration electrode plate,the value of the electric field generated by the calibration electrode plate is compared with the measured values,to dis-cover the error is whether within the range of accu-racy,in order to achieve the self test function.