脉冲电场传感器灵敏度响应系数一致性的实验研究

Test research of consistency for amplitude calibration coefficients of pulsed electric field sensor

电场传感器灵敏度的校准是电磁场测量中的重要环节。本文运用任意波形发生器(AWG),在TEM小室中激励不同形式的脉冲电场,对自行研制的偶极天线测量系统的灵敏度进行了校准实验。结果表明,在传感器的频带范围内,不同脉冲波形的灵敏度曲线基本一致,由实验室校准系统给出的灵敏度参数适用于频带范围内的未知波形脉冲电场的测量。

The amplitude calibration of an electric field sensor is important in the measurement of electromagnetic pulse. In this paper, an arbitrary waveform generator （AWG） is used to generate multi-waveform electric field in the TEM cell and the dipole antenna pulsed electric field sensor is calibrated. In the frequency band of the sensor, the calibrated amplitude coefficients with different waveforms are identical. The coefficient derived from the TEM cell calibration system suits to the measurement of unknown electric field pulse within the frequency band.