地震台站标准化中地震计防震加固装置试验分析

doi:10.12196/j.issn.1000-3274.2021.04.012

Abstract

Abstract: In this paper, according to the requirements of earthquake observation stations standardization for the shockproof reinforcement of seismometers and other professional equipment. After the seismic sensors are equipped with shockproof reinforcement devices, the shaking table test and the consistency analysis of the stations observation data are carried out. In the shaking table test, the results show that when the PGA of the seismometer is greater than 103.2 cm·s^-2, the seismometer has obvious displacement. So it is recommended to install shockproof reinforcement device where the area with intensity is greater than Ⅶ. In the process of consistency analysis, we use the square coherence method to compare the near earthquake and far earthquake records in the frequency domain and time domain, the results show there is no significant difference in the consistency of seismometer system between the sensor with shockproof reinforcement device and without.

Key words: Seismometer, Shockproof device, Vibration table, Test

CLC Number:

P315.7

XIAO Wu-jun, ZHAO Nan, LI Xiao-jun, ZHAO Gang, LIU Quan, QU Li, LUO Jia-ji. Test Analysis of the Shockproof Reinforcement of Seismometers in Earthquake Observation Station Standardization[J]. EARTHQUAKE, 2021, 41(4): 158-167.

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Test Analysis of the Shockproof Reinforcement of Seismometers in Earthquake Observation Station Standardization

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