06/18/2025, 08:00 AM UTC
微型化量子磁强计为多种应用提供新的测量可能Miniaturized Quantum Magnetometer Offers New Measurement Possibilities for a Wide Range of Applications
➀ 弗劳恩霍夫应用固体物理研究所（Fraunhofer IAF）开发出基于氮空位（NV）中心的微型化量子磁强计，具备皮特斯拉级高灵敏度和强鲁棒性，适用于生物医学、材料检测及导航等领域；
➁ 该传感器支持无校准矢量磁场测量，可在复杂环境中实现无需全球导航卫星系统（GNSS）的自主导航，并用于地下矿物资源定位与未爆炸物探测；
➂ 研究团队计划进一步将传感器尺寸缩小5倍并提升灵敏度至亚皮特斯拉级别，同时将合成金刚石晶圆尺寸从2英寸扩展至4英寸，以适配工业化生产需求。
➀ Fraunhofer IAF developed a miniaturized diamond-based quantum magnetometer using nitrogen-vacancy (NV) centers, achieving high sensitivity (picotesla range) and robustness for applications in biomedicine, materials testing, and navigation;
➁ The sensor enables vector magnetic field measurements with reduced calibration, supports autonomous GNSS-free navigation in challenging environments, and aids in geological mineral exploration;
➂ Ongoing advancements aim to further reduce sensor size by 5x and enhance sensitivity for sub-picotesla measurements, while expanding diamond wafer production to industrial 4-inch scales.
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