数字闪变仪，基于IEC模拟闪变仪而来，通过低通、高通滤波器、视感度加权滤波、平滑滤波后得到瞬时闪变视感度值。-Digital flicker meter, based on the IEC flicker meter　analog, low pass, high pass filter, depending on the sensitivity weighted filtering, smoothing the instantaneous flicker sensation value.