AEMT电容器标定实验的影响因素

Influence Factors of AEMT Capacitor Calibration Experiment

空中电场大地电磁法(AEMT)在标定实验当中会产生仪器漂移和失准的情况,为了让AEMT测量更加标准化,研究AEMT电容传感器的室内外标定,将电容传感器所测到的数据,转换成接地电极所测到的数据,并通过比较数据研究标定实验的影响因素,对比数据得到初步的结论,影响因素有内因与外因2种,在室内外的对比分组实验中可以将影响因素归结为室外的频率干扰以及电容板放置的间隔等,今后AEMT方法在运用时应当注意规避影响因素,从而提高精准度。

In order to make AEMT measurement more standardized, the indoor and outdoor calibration of AEMT capacitance sensor is studied. The data measured by capacitance sensor is converted into the data measured by grounding electrode. The influencing factors of calibration experiment are studied by comparing the data. The preliminary conclusion is obtained by comparing the data. The influencing factors are internal and external factors because of the two factors, in the indoor and outdoor comparative grouping experiments, the influencing factors can be attributed to the outdoor frequency interference and the spacing of capacitor plates. In the future, AEMT method should pay attention to avoid the influence factors, so as to improve the accuracy.