Calibration of the superconducting gravimeter based on a cold atom absolute gravimeter at NIM*

Project supported by the National Key Research and Development Program of China (Grant Nos. 2016YFF0200103 and 2016YFF0200200) and the Fundamental Research Funds for National Institute of Metrology, China (Grant No. 22-AKY1608).

Wang Qiyu1, Feng Jinyang1, Wang Shaokai1, Zhuang Wei1, Zhao Yang1, Mou Lishuang2, Wu Shuqing1, †
       

(color online) The residuals of absolute gravity measurement obtained by subtracting theoretical Earth tide and the effect of the atmospheric pressure changes from the raw data. Each black point takes 1 minute. The red line represents the smoothed results.