A Study of a New Method of Thermostatic Control of an Atomic-Clock Room with High Precision and High Stability

In order to reduce influences of variations of environmental temperatures on the performance of an atomic clock, it is necessary to put the atomic-clock room (the room hosting the atomic clock), under thermostatic control. In this paper we present a new method of thermostatic control of an atomic-clock room. We have used this method to achieve thermostatic control of a usual small insulated room with high precision and high stability. Particularly, the method can achieve long-term temperature stability for an insulated atomic-clock room of an area of 5m² to 9m², with the deviation of the room temperature from a desired temperature controlled within a level of 0.3℃ to 0.5℃. Our experiments show that the method is feasible, can achieve satisfactory results, and is practically highly valuable. After having been successfully used for an atomic-clock room in Kunming, this method and related equipments are being used for atomic-clock rooms in Sanya and Xuyi.