The purpose of this study was to improve the overall measurement accuracy of laser interference absolute gravimeter. The genetic algorithm approach was adopted to the multiparameter optimization. This paper presents a two-stage vibration isolation system model of laser interference absolute gravimeter, builds a mathematical model of vibration isolation system and searches the optimal solutions of each parameter in the vibration isolation system model based on the genetic algorithm. The results obtained in this study revealed that the overall measurement accuracy of laser interference absolute gravimeter improved by 1.5 times. The findings of this study may serve as a method to improve the overall measurement accuracy of laser interference absolute gravimeter.
vibration isolation, genetic algorithm, absolute gravimeter, gravity measurement
I'd like to express my sincere thanks to the National Key Research and Development Program of China (2018YFC1503801), the Special Fund of Fundamental Scientific Research Business Expense for Higher School of Central Government (ZY20180119) and Earthquake Science and Technology Spark Plan, China Earthquake Administration (XH15066Y).
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