非正弦波中频强磁场测量方法及装置

摘要

用规格为A1323LUA的霍尔元件作为磁信号转换器、AD637作为真有效值集成转换器构建了霍尔传感器测量电路及信号处理电路,再组合其它功能模块,以真有效值代替平均值算法,在实验室自制了可以测量不同电流波形磁场的测量装置,通过对磁感应强度计的定标及测量验证,能满足非正弦波中频磁场强度的检测需要.%With Hall element A1323LUA as the magnetic signal converter, and AD637 as the true RMS integrated converter, a Hall sensor measuring circuit and signal processing circuit was firstly constructed;Then, in combination with other function modules, and by adopting true RMS instead of average algorithm, a measurement device was produced in the lab to measure magnetic fields with different current waveform.The calibration and measurement verification of magnetic induction intensity meter shows that it can meet the test need of the non-sinusoidal wave medium frequency high magnetic field.