This section details how to make surface and volume resistivity measurements with these test fixtures, as well as the Alternating Polarity and Alternating Voltage techniques for measuring resistivity.
It can analyze DPG signal, self-defined sweep signal, test of seismic channel data and geophone polarity by use of DSD returned signal through wire and wireless style.
The end electrical field distribution under polarity reverse test voltage of valve winding in converter transformer is calculated. The results are analyzed.