Imaging of non-ideal leakage from electromagnetic shielding components using quantum magnetometry
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2025-07-23 |
| Journal | Optics Express |
| Authors | W.C. Wang, Hua Xu, Yunbin Zhu, Ke Jing, Yijin Xie |
| Institutions | University of Science and Technology of China |
Abstract
Section titled āAbstractāIn this work, nitrogen-vacancy (NV) center ensembles in diamond were employed to map leakage magnetic fields from electromagnetic shielding components. A phase accumulation method enabled self-traceable magnetic field calibration without external references. With synchronous current excitation, the leakage field of an RG316 coaxial cable was characterized, revealing Ī¼ T-level field strength for the first time. The system achieved a bandwidth of 70 kHz to 3.2 MHz, with a spatial resolution of 278 Ī¼ m. This work introduces a novel tool for defect characterization, offering detailed insights into leakage detection, and provides valuable data for the enhancement of shielding material and structural design.