Acta Metrologica Sinica  2023, Vol. 44 Issue (11): 1699-1705    DOI: 10.3969/j.issn.1000-1158.2023.11.10
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Analysis of Effect of Acceleration Sensor on Vibration Compensation of Gravimeter
MA De-kai1,LI Chun-jian2,3,FENG Jin-yang2,3,FAN feng1,YAO Jia-min2,3,WANG Qi-yu2,3,HU Ruo2,3
1. College of Mathematical Sciences and Engineering, Hebei University of Engineering, Handan, Hebei 056038, China
2. National Institute of Metrology,  Beijing 100029, China
3. Key Laboratory of Time and Frequency and Gravity Acceleration of State Administration for Market Regulation, Beijing 100029, China
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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 wordsmetrology      absolute gravimeter      gravity measurement      acceleration sensor      laser vibrometer      vibration compensation;calibration     
Received: 01 August 2022      Published: 17 November 2023
PACS:  TB934  
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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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