Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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High Temperature Sensitivity Characteristics of the Voltage Type High Temperature Piezoelectric Accelerometer

고온용 전압형 가속도센서의 온도특성

  • Kim, Y.D. (Research Institute of Industrial Science & Technology) ;
  • Kim, K.I. (Research Institute of Industrial Science & Technology) ;
  • Jung, W.C. (Research Institute of Industrial Science & Technology) ;
  • Koh, J.S. (Research Institute of Industrial Science & Technology)
  • 김영덕 (포항산업과학연구원 전력전자연구팀) ;
  • 김광일 (포항산업과학연구원 전력전자연구팀) ;
  • 정우철 (포항산업과학연구원 전력전자연구팀) ;
  • 고재석 (포항산업과학연구원 전력전자연구팀)
  • Published : 1998.07.20
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Abstract

Vibration measurements to monitor the condition of machinery and machine elements offers several advantages over traditional methods of nondestructive evaluation. RIST(Research Institute of Industrial Science & Technology) has established a calibration system for accelerometers that measures within a frequency range from 2Hz to 6,300Hz and a temperature range from $-40^{\circ}C$ to $180^{\circ}C$. The calibration procedures are based on the principle of the comparison method. To monitor vibration signals of machinery and machine elements, annular shear type piezoelectric accelerometers employing solid state microelectronics were fabricated. The voltage sensitivity and resonant frequency of fabricated accelerometers was 83mV/g, 23kHz, respectively. This paper discusses the method of fabrication of annular shear type piezoelectric accelerometers and the results of field tests in POSCO(Pohang Iron & Steel Co. LTD.).

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