数字调频及数字伺服在铷频标中的应用

Application of Digital Frequency Modulation and Digital Servo in Rubidium Frequency Standard

介绍了铷原子频标的基本原理及现状 ,提出了采用数字锁相调频电路代替原变容二极管调相电路实现对量子系统激励信号频率调制的方案 ,以及采用数字伺服电路代替原模拟纠偏电路的措施 。

The fundamental principle and present status of rubidium atom frequency standard was introduced in the paper . The scheme was presented that adopting digital phase locking frequency modulation circuit to take the place of origin variode phase modulation circuit in order to stimulate the frequency modulation of quantum system signals , and it was pointed out that adopting digital servo circuit to replace origin analog compensation circuit . The temperature coefficient and instability caused by electric circuit imperfections would be eliminated.