This paper systematically analyzed the development course and current research status of various experimental techniques adopted both at home and abroad over the past half century, and some thoughts and cognition on the relativity of frequency either with geophysical measurement techniques or with petrophysical models were put forward on the basis of various experimental data. Obviously,  it is necessary to extend the applicable frequency of petrophysical models from single frequency to full frequency, which can link various geophysical measured data at different frequency bands together, thus realizing their integrated applications on the same scale.