Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Relationship between Normal Measurement and Error Rate of Output Voltage Linear Ratio of Seismic Accelerometer in Use

사용 중 지진 가속도계의 정상 측정과 출력전압 선형비 오차율 관계 분석

  • Min-Jun Kim (Earthquake Intelligence Service, Department of Disaster Prevention Engineering, Chungbuk National University) ;
  • Seong-Cheol Cho (Earthquake Intelligence Service) ;
  • Yong-Hun Jung (Earthquake Intelligence Service) ;
  • Jeong-Hun Won (Department of safety Engineering & Department of Disaster Prevention Engineering & Department of Big Data, Chungbuk National University)
  • 김민준 (충북대학교 방재공학 학과간협동과정) ;
  • 조성철 ((주)이아이에스) ;
  • 정용훈 ((주)이아이에스) ;
  • 원정훈 (충북대학교 안전공학과)
  • Received : 2024.01.15
  • Accepted : 2024.04.15
  • Published : 2024.04.30
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Abstract

We analyzed the relationship between the normal measurement of the seismic accelerometer (SA) and the error rate of the output voltage linear ratio to propose an evaluation method to determine whether the SA in use is measuring normally. Utilizing a test bed, the regular operation of SA in use was evaluated using acceleration data measured through impact tests since there are no regulations regarding performance testing of SA in use. For the used SA, the error rate of the output voltage linear ratio, which is a major performance criterion, was evaluated. We analyzed common characteristics of the SA that satisfied the impact test and the performance criteria of the output voltage linear ratio error rate. The results indicated that we must consider the decreasing trend and convergence of the error rate as the measurement angle increases, ensuring that the average value of the output voltage linear ratio error rate is within 1%.

Keywords

Acknowledgement

This study was supported by Ministy of the Interior and Safety as Human Resource Development Project in Disaster Management.

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