Design of Wide-Range High-Precision Cesium Oven Temperature Control System for Time-Keeping Cesium Beam Frequency Standards
Source abstract
Abstract
The temperature fluctuation of a cesium oven has a significant impact on the performance of time-keeping cesium beam frequency standards. We have designed a circuit system for the precise temperature control of the cesium oven used in it. The use of a 24-bit analog-to-digital converter ensures a temperature measurement resolution more than 0.5 mK within the working range. The digital PID algorithm guarantees the accuracy of error signal computation, and a 16-bit digital-to-analog converter improves the resolution of the control current adjustment. Ultimately, we achieved the goal of keeping the temperature fluctuation of the cesium oven to less than 4 mK within a working range of 120 °C. The results indicate that the circuit system effectively ensures the performance of the cesium beam frequency standard.
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Research context
OpenAlex topics: Atomic and Subatomic Physics Research · Advanced Frequency and Time Standards · Cold Atom Physics and Bose-Einstein Condensates
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
National Time Service Center, Chinese Academy of Sciences, 3 East Shuyuan Road, Xi’an 710600, China
School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
Key Laboratory of Time Reference and Application, Chinese Academy of Sciences, 3 East Shuyuan Road, Xi’an 710600, China
University of Chinese Academy of Sciences, Beijing 100049, China
Funding
National Key R&D Program of China · CAS “Light of West China” Program · Technology Innovation Leading Program of Shaanxi
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