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As we all know , time frequency scientific research , scientific experiments and engineering aspects of the basic physical parameters . In order to provide high-precision time and frequency , mankind has developed the hydrogen atomic clock , in addition to the long - term stability , the performance is very excellent . The microwave cavity of the temperature change is an important factor of the long-term stability of hydrogen masers output frequency . Therefore , in order to achieve a better long - term stability , it is necessary to improve the temperature stability of the microwave cavity . This paper first introduces the hydrogen atomic clock thermostat control , then for some of the problems that currently exist , the overall design ideas MSC1210 microcontroller as the core digital temperature control . MSC1210 necessary to have intelligent measurement circuit characteristics , in the two chapters , the first of the MSC1210 introduction and detailed exposition of hardware and software design , respectively . Subsequently, in the fifth chapter of the control system debugging process , at the same time , also given a reasonable solution . Finally , at the end of Chapter given experimental data , the results indicate that more than the expected design goals . Compared with the original analog temperature control system , the system not only to improve the stability of the hydrogen the atomic clocks chamber temperature , but also reduced the volume of the electronic system , improve system reliability .
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