加速度传感器对重力仪振动补偿效果分析

doi:10.3969/j.issn.1000-1158.2023.11.10

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Abstract In order to analyze the compensation effect of accelerometer on gravimeter, based on the NIM-3C absolute gravimeter, a platform gravimetric experiment platform was built, the laser vibrometer output signal was used as the standard signal, and the vibration collection performance of three different types of acceleration sensors, MSA1000A-02, 991B, and INV9832-50, in the platform based gravity measurement environment was calibrated through experiments. The experimental results show, in order to ensure that the gravity measurement uncertainty under this condition is smaller than several milligal, the measurement error of the acceleration sensor should be limited to within several hundred μGal. The extreme difference between the quadratic term fit coefficient of the vibration (standard signal) measured by the MSA1000A-02 sensor and the laser vibrometer is 2.94 μGal (1 μGal=1×10^-8m/s²) under the platform gravity measurement condition, which meets the uncertainty and bandwidth requirements of this condition.

Key words： metrology absolute gravimeter gravity measurement acceleration sensor laser vibrometer vibration compensation;calibration

Received: 01 August 2022 Published: 17 November 2023

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TB934

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	Articles by authors
	MA De-kai
	LI Chun-jian
	FENG Jin-yang
	FAN feng
	YAO Jia-min
	WANG Qi-yu
	HU Ruo

Cite this article:

MA De-kai,LI Chun-jian,FENG Jin-yang, et al. Analysis of Effect of Acceleration Sensor on Vibration Compensation of Gravimeter[J]. Acta Metrologica Sinica, 2023, 44(11): 1699-1705.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2023.11.10 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2023/V44/I11/1699

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