A Study on the Characteristics of PCN-PZT Piezoelectric Acceleration Sensor

PCN-PZT 압전형 가속도센서의 특성에 관한 연구

  • Kim, Yeong-Deok (Research Institute of Industrial Science and Technology) ;
  • Kim, Gwang-Il (Research Institute of Industrial Science and Technology) ;
  • Jeong, U-Cheol (Research Institute of Industrial Science and Technology) ;
  • Go, Jae-Seok (Research Institute of Industrial Science and Technology)
  • Published : 1999.05.01


PCN-PZT piezoelectric acceleration sensors of annular shear mode voltage type were fabricated and their characteristics have been investigated. Field tests are also carried out. To avoid noise problems from the environmental conditions, acceleration sensors employed solid state micro-electronics for pre-amplifier. The calibration procedures based on the principle of the comparison method were adopted for investigating the characteristics of fabricated acceleration sensors. The voltage sensitivity and resonant frequency of fabricated acceleration sensors were 83mv/g, 23kHz, respectively. The lower and upper frequency limit were 4Hz and 9kHz, respectively. The variation of the voltage sensitivity showed 10% at $-406{\circ}C\; and\; 9%\; at\; 121^{\circ}C$ compared to that of reference temperature at $40^{\circ}C$.


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