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유완동(Yoo, Wan-Dong),김진오(Kim, Jin-Oh),박광훈(Park, Kwang-Hoon) 한국소음진동공학회 2005 한국소음진동공학회 논문집 Vol.15 No.2
This paper deals with the development of a contact-type counting device using a piezoelectric polymer film as a sensor. The piezoelectric and vibration characteristics of the film under a bending vibration were investigated theoretically and experimentally. A counting device, which includes filters, an amplifier, an analog-digital converter, and a display, was designed and fabricated. The performance of the piezoelectric polymer sensor was evaluated in the sense of the responses to contact force, contact frequency, and contact speed. The life and the temperature effect were also investigated for the piezoelectric film sensor.