The Transactions of the Korean Institute of Electrical Engineers P (전기학회논문지P)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

A Study on the Pressure Sensor for the Direct Detection of the Approach to the Dangerous Power Facilities Using Pb-free BNKT Ceramics

무연 BNKT 세라믹스를 이용한 위해(危害)전력설비 접근 직접감지용 압력센서에 관한 연구

  • 홍재일 (동서울대학 전기정보제어과) ;
  • 류주현 (세명대학교 전기공학과)
  • Published : 2006.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

A infrared rays sensor or ultrasonic sensor can detect the object at the narrow area, however a pressure sensor can detect man and animal at the wide area. It is necessary to manufacture the sensor by using Pb-free ceramics in the respect of environmental protection. Piezoelectric properties of ceramics added 0.2wt% $La_2O_3\;into\;0.96Bi_{0.5}(Na_{0.84}K_{0.16})_{0.5}+0.04SrTiO_3$ were 0.4 of kp, $31{\times}$10^{-3}Vm/N\;of\;g_{33}$. The output voltage of the pressure sensor is 0.48 V at 20 in$H_2O$. The output voltage of the pressure sensor with driving circuit is 9.8 V, 37 ms width.

Keywords

References

  1. B. Jaffe, W. R. Cook and H. Jaffe, 'Piezoe lectric Ceramics', Academic Press London, p. 115, 1971
  2. 홍재일, 'GIS 부분방전 검출용 결합진동모드 AE 센서의 특성', 전기학회 논문지, 제50P권, 제2호, pp.71-76, 2001.6
  3. G. A. Smolenskii, V. A. Isupov, A. 1. Agrano vskaya and N. N. Krainik, Sov. Phys.-Solid State(Eegl.Tranl.), Vol. 2, No. 11, p. 2651, 1961
  4. T. Takenaka, K. Maruyama and K. SaKata, '$(Bi_{1/2}Na_{1/2})TiO_{3}-BaTiO_{3}$ system for leed- free piezoelectric ceramics', Jpn. J. Appl. Phy., Vol. 30, No. 9B, p. 2236, 1991 https://doi.org/10.1143/JJAP.30.2236
  5. X. Wang, H. L. Chan and C. Choy, 'piezoe ectric and dielectric properties of $CeO_{2}-added(Bi_{0.5}Na_{0.5})_{0.94}Ba_{0.06}TiO_{3}$ leed-free ceramics', Solid State Communication. Vol. 125, p. 395, 2003 https://doi.org/10.1016/S0038-1098(02)00816-5
  6. T. Takenaka, United State Patent, 6004474, 1999
  7. H. Nagata and T. Takenaka, 'Additive effects on electrical properties of $(Bi_{1/2}Na_{1/2})TiO_{3}$ ferroelectric ceramics', J. Euro. Ceram. Soc., Vol. 21, p. 1299, 2001 https://doi.org/10.1016/S0955-2219(01)00005-X
  8. A. Sasaki, T. Chiba, Y. Mamiya and E. Otsuki, 'Dielectric and piezoelectricproperties of $CeO_{2}-(Bi_{0.5}Na_{0.5})TiO_{3}-(Bi_{0.5}K_{0.5})TiO_{3}$ systems', Jpn. J. Appl. Phy., Vol. 38, No.9B, p. 5564, 1999 https://doi.org/10.1143/JJAP.38.5564
  9. 류주현, 이현석, 박창엽, 정광현, 이덕출, 정영호, 홍재일, '$La_{2}O_{3}$첨가에 따른 무연 Bi(Na,K)$TiO_{3}-SrTiO_{3}$ 세라믹스의 압전특성', 전기전자재료학회 논문지, 제17권 제8호, pp.830-834, 2004. 8