Abstract:Precision gravity measurement is of great significance in the fields of national defense construction, navigation and guidance, disaster prediction, resource exploration, geophysics, archaeology and fundamental scientific research, etc. As a new generation of high-precision absolute gravimeters, atomic interferometric absolute gravimeters have larger measurement potential and more universality of application scenarios beyond optical interferometric absolute gravimeters, which could fill the gap of only aviation relative gravity measurement via providing an efficient airborne absolute gravity dynamic continuous measurement technology in addition to the low-spatial-resolution satellite gravity measurement technology and the traditional ground relative gravity measurement technology. This article outlines the highest indicators of high-precision relative gravimeters and absolute gravimeters, as well as the working characteristics and research status of laser and atomic interferometric absolute gravimeters, respectively. It points out the primary methods for the atomic interferometric absolute gravimeters to move towards large-scale practical applications and the bottleneck problems that need to be solved urgently. Afterward, focusing on the "large dynamic range atomic interferometric gravimeter technology", this article introduces the measurement principle of the classic 3-pulse atomic interferometric gravimeter, and discusses the mechanism of the limited dynamic measurement range. Subsequently, four technical schemes for increasing the dynamic range of the atomic gravimeter together with their advantages and disadvantages are reviewed in detail. In the end, the development trend of atomic interferometric gravimeters is summarized.