Chip atomic clock temperature control system and implementation method
By designing a layered temperature control system and a multi-layered composite material protective cover, the problems of temperature control accuracy and response speed of the chip atomic clock were solved, realizing independent high-precision temperature control of the laser and the gas chamber, and improving the stability and time-frequency accuracy of the chip atomic clock.
CN121501057BActive Publication Date: 2026-07-21NATIONAL MEASUREMENT TECHNOLOGY (ZHEJIANG) CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NATIONAL MEASUREMENT TECHNOLOGY (ZHEJIANG) CO LTD
- Filing Date
- 2025-11-19
- Publication Date
- 2026-07-21
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Figure CN121501057B_ABST
Abstract
The application discloses a kind of chip atomic clock temperature control system and implementation method, and precision temperature regulation is realized using three-level hierarchical temperature control architecture.The system includes: laser (integrates first temperature control unit) with closed protective cover, gas chamber (integrates second temperature control unit) fixed on circuit board and third temperature control unit integrated with protective cover.First temperature control unit realizes laser wavelength automatic locking by PID control, atomic absorption peak search and phase-sensitive detection;Second temperature control unit uses semiconductor thermoelectric cooler and thermistor closed-loop control gas chamber temperature (±0.1℃);Third temperature control unit cooperates with first unit to form hierarchical regulation, and protective cover adopts heat radiation reflection layer / vacuum insulation layer / heat conduction buffer layer composite structure.The method includes laser hierarchical temperature control, gas chamber constant temperature maintenance, wavelength automatic locking and protective cover composite temperature control steps.The application realizes ±0.01℃ laser temperature control precision through multi-stage cooperative control, which significantly improves the atomic clock time-frequency stability.
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