Damped-capacitance elimination of piezoelectric vibrators for their wide applications

Author

Tomikawa, Y. ; Kusakabe, C. ; Ohnishi, K. ; Sakurai, K. ; Tanaka, M.

Author_Institution

Dept. of Electron. Eng. & Inf. Sci., Yamagata Univ., Yonezawa, Japan

Volume

2

fYear

1996

fDate

18-21 Aug 1996

Firstpage

963

Abstract

This paper deals with the elimination of damped capacitance from the equivalent circuit of a piezoelectric vibrator, which is achieved using an operational amplifier circuit. In the first part of this paper, the theoretical principle of a basic capacitance elimination circuit is described. The second part contains an experimental investigation of the circuit. Moreover, applying this technique, the possibility that the equivalent resistance of the vibrator can be controlled electrically, is pointed out

Keywords

capacitance; equivalent circuits; operational amplifiers; piezoelectric devices; piezoelectric transducers; ultrasonic transducers; damped-capacitance elimination; electrical control; equivalent circuit; equivalent resistance; operational amplifier circuit; piezoelectric sensors; piezoelectric vibrators; ultrasonic transducers; Admittance; Capacitance; Current supplies; Equivalent circuits; Filters; Information science; Magnetic devices; Operational amplifiers; Piezoelectric devices; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 1996. ISAF '96., Proceedings of the Tenth IEEE International Symposium on

Conference_Location

East Brunswick, NJ

Print_ISBN

0-7803-3355-1

Type

conf

DOI

10.1109/ISAF.1996.598188

Filename

598188