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NTIS 바로가기National technical report, v.24 no.1, 1978년, pp.111 - 119
Tani, Kenroku (Matsushita Electron Components Co, Ltd, Jpn) , Yamazoe, Toshihiro , Hayakawa, Daishiro , Tanaka, Fumio
A piezo ceramic buzzer consisting of a thin disc-type piezoelectric ceramic and a metal disc is an acoustic transducer utilizing bending vibration. This type of buzzer is used for various kinds of electric and/or electronic devices because of its unique features: low power consumption and its non-switching contact construction which results in no generation of noise. This paper describes several types of piezoelectric transducer elements and thin piezo ceramic buzzers which employ a PCM piezoelectric ceramic element. Principal functions and characteristics, as well as driving circuit and applications, are described.
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