摘要
基于理论分析和计算机仿真，得到了超导稳频振荡器的设计方案，主要包括高Q超导腔、低温环境及锁相环电路等组件的设计。通过实验验证，超导腔的Q值达到2×10^9，低温环境温度达到1．8K，温度的稳定度优于0．001K。根据实验结果优化设计后进行系统联调，得到了初步实验结果，超导稳频振荡器的1s频率稳定度达到10^-13量级。
The design of a superconducting cavity stabilized oscillator （SCSO） is achieved based on theory analysis and computer simulation. It includes the design of superconducting cavity with high quality factor, cryogenic environment, PLL and so on. The quality factor of cavity reaches 2 × 10^9 and the temperature is 1.8K and the temperature stability is better than 0. 001K in experiment. The experiment result is achieved through system debug and optimization that the stability of ls reaches 10^-13.
出处
《计量学报》
CSCD
北大核心
2015年第3期324-327,共4页
Acta Metrologica Sinica
基金
国防军工计量科研项目(J042011C001)
关键词
计量学
超导稳频振荡器
频率标准
微波腔
品质因数
Metrology
Superconducting cavity stabilized oscillator
Frequency standard
Microwave cavity
Quality factor
