Abstract：Compared with the traditional metrological reference, the quantum metrological reference has the advantages of extremely high accuracy and stability, strong universality, and can be reproduced at any time and any place with the device of the same principle. A major technological revolution is taking place in the field of metrology worldwide, in which the natural constant based on quantum physics replaces the physical reference. In the face of the challenges of the quantization reform of the international system of units and the flattening of the quantification traceability, space metrology should focus on the goal of building an aerospace power, keep up with the international frontier, and actively explore new directions of technological development.
2024, Vol. 34 