Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Precision Phase Calibration System of Accelerometers

가속도계 정밀 위상 교정 시스템

  • 이용봉 (한국표준과학연구원 음향진동센터) ;
  • 정성수 (한국표준과학연구원 음향진동센터) ;
  • 진종한 (한국표준과학연구원 길이센터)
  • Received : 2010.12.30
  • Accepted : 2011.02.07
  • Published : 2011.05.01
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Abstract

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.

Keywords

References

  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.
  5. Sun, Q., Wabinski, W. and Bruns, T., "Investigation of primary vibration calibration at high frequencies using the homodyne quadrature sine-approximation method: problems and solutions," Meas. Sci. Technol., Vol. 17, No. 8, pp. 2197-2205, 2006. https://doi.org/10.1088/0957-0233/17/8/020
  6. Dobosz, M., Usuda, T. and Kurosawa, T., "Methods for the calibration of vibration pick-ups by laser interferometry:I Theoretical analysis," Meas. Sci. Technol., Vol. 9, No. 2, pp. 232-239, 1998. https://doi.org/10.1088/0957-0233/9/2/010