가속도계 정밀 위상 교정 시스템

Precision Phase Calibration System of Accelerometers

  • 이용봉 (한국표준과학연구원 음향진동센터) ;
  • 정성수 (한국표준과학연구원 음향진동센터) ;
  • 진종한 (한국표준과학연구원 길이센터)
  • 투고 : 2010.12.30
  • 심사 : 2011.02.07
  • 발행 : 2011.05.01

초록

Accelerometers have been exploited widely in various fields from monitoring vibration of precision machines to detecting an earthquake wave. The precision calibration of the accelerometers is required to maintain the measurement reliability when measuring the vibration of objects with accelerometers for modal analysis. Among evaluation factors for determining sensitivity of accelerometers, phase delay term should be also considered for accurate calibration. In this paper, a new calibration system of accelerometers capable of measuring phase delay as well as magnitude of its sensitivity was proposed and realized in the frequency range of 20 Hz to 5 kHz.

키워드

참고문헌

  1. Lee, Y. B., Jung, S. J. and Jin, J., "Development of accelerometer phase lag calibration system," Proc. of KSPE Spring Conference, pp. 1059-1060, 2010.
  2. Lee, Y. B., Kim, H. C. and Kim, S. W., "Determination of the sensitivity phase of an accelerometer based on an analysis of the harmonic components of the interference signal," Vol. 19, No. 4, Paper No. 045204, 2008.
  3. ISO 16063-1, "Methods for the calibration of vibration and shock transducers : Part 1: Basic concepts," 1998.
  4. ISO 16063-11, "Methods for the calibration of vibration and shock transducers : Part 11: Primary vibration calibration by laser interferometry," 1999.
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