1.Characteristics

The clock has the characteristics of high short-term stability, small size, easy to carry, and reasonable price. It is very suitable for use in various fields. However, due to the atomic properties of rubidium atoms, rubidium clocks do not have the excellent long-term stability of cesium clocks and hydrogen clocks, so calibration is required. In order to improve the long-term stability of rubidium clocks, the rubidium clocks can be controlled and calibrated by using the GPS system.

The GPS system achieves positioning measurement by measuring time difference. In order to achieve higher positioning accuracy, the internal time measurement accuracy of the GPS system is extremely high. By using the GPS system to calibrate the rubidium clock, the long-term stability of the rubidium clock can be greatly improved and the drift of the rubidium clock output signal can be reduced.

2.Application Fields

The application fields of rubidium clocks mainly include three aspects: scientific research measurement, production and manufacturing, and radio and television power. In scientific research and measurement research units, rubidium clocks can not only provide high-precision reference sources for measurement, but also serve as high-precision external time bases for measurement and calibration instruments. In the field of manufacturing, rubidium clocks can provide frequency reference outputs for production lines that require high-precision frequency reference outputs. These reference signals are used to calibrate electronic products. Rubidium clocks can also be used as external high-precision time bases for production line measuring instruments, greatly improving the accuracy of production line testing and ensuring product quality. In radio and television power systems, rubidium clocks can be used as the system's master clock, thereby effectively achieving synchronization of various parts within the system.