In this paper, we systematically studied the relationship between magnetometer sensitivity and microwave frequency modulation. It is proved by experiments that the sensitivity of the noise limit will reach 1 nT Hz −1/2 (the theoretically calculated sensitivity is 0.5 nT Hz −1/2 ), and a debugging method is proposed. At the same time, the optimal modulation depth is obtained by the existing theoretical model simulation. In theory, the sensitivity of the magnetometer will reach 0.1 nT Hz −1/2 .

中文翻译：

---

优化的频率调制，可通过单晶金刚石中的电子自旋集成来提高磁力计的灵敏度

在本文中，我们系统地研究了磁力计灵敏度与微波频率调制之间的关系。通过实验证明，噪声极限的灵敏度将达到1 nT Hz -1/2（理论计算的灵敏度为0.5 nT Hz -1/2），并提出了一种调试方法。同时，通过现有的理论模型仿真获得了最佳的调制深度。理论上，磁力计的灵敏度将达到0.1 nT Hz -1/2。