A new type of current transformer shielding structure design based on quantum measurement

The quantum precision measurement principle is analyzed in detail, and the current measurement by using the nitrogen-vacancy (NV) color center in diamond as a magnetic probe is deeply analyzed. The arrangement scheme of multiple sensor probes is proposed, which can better eliminate the interference of external magnetic field. The shielding ring that is not easy to saturate is designed, which can well shield the external interference magnetic field and ensure the measurement accuracy of the quantum current transformer under various working conditions.