Current sensor based on diamond nitrogen-vacancy color center
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2023-03-14 |
| Journal | Chinese Physics B |
| Authors | Ziyang Shi, Wei Gao, Qi Wang, Hao Guo, Jun Tang |
| Institutions | North University of China |
| Citations | 11 |
Abstract
Section titled āAbstractāHigh precision current measurement is very important for the calibration of various high-precision equipment and the measurement of other precision detection fields. A new current sensor based on diamond nitrogen-vacancy (NV) color center magnetic measurement method is proposed to realize the accurate measurement of current. This new current method can greatly improve the accuracy of current measurement. Experiments show that the linearity of the current sensor based on diamond NV color center can reach up to 33 ppm, which is superior to other current sensors and solves the problem of low linearity. When the range of input current is 5-40 A, the absolute error of the calculated current is less than 51 Ī¼A, and the relative error is 2.42 Ć 10 ā6 at 40 A. Combined with the research content and results of the experiment, the application of the current sensor in the field of current precision measurement is prospected.