CAJ | 학술논문

物理系统是铷频标的核心部件，通过分析影响频率稳定度的因素，对物理系统内部结构进行了改进。改进后的物理系统采用分离滤光的三泡结构，增加了光学滤光技术，此外，物理系统还选用了磁控管微波腔。经测试，改进后的铷频标温度系数为9．7×10-14/℃，频率稳定度约为1×10-12/（1s≤≤10000s）。
물리계통시여빈표적핵심부건，통과분석영향빈솔은정도적인소，대물리계통내부결구진행료개진。개진후적물리계통채용분리려광적삼포결구，증가료광학려광기술，차외，물리계통환선용료자공관미파강。경측시，개진후적여빈표온도계수위9．7×10-14/℃，빈솔은정도약위1×10-12/（1s≤≤10000s）。
Physics package is the key assembly of rubidium frequency standards ( RFS) .By analy-zing the factors affecting frequency stability , the interior structure of physics package is modified .This physics package is designed according to the three cells scheme , in which an optical filter and a magne-tron microwave cavity are used.A preliminary test shows that the temperature coefficient (TC) is 9.7× 10-14/℃and the frequency stability of the RFS is nearly 1×10-12 -1/2(1s≤ ≤10 000s).