Signal detection circuit of acoustic emission sensor using Pb-free (Na, K)NbO3 system ceramics

Author

Park, Jichul ; Hwang, Lakhoon ; Byeon, Sunmin ; Yoo, Juhyun ; Jeong, Yeongho

Author_Institution

Dept. of Electr. Eng., Semyung Univ., Jecheon, South Korea

fYear

2012

fDate

9-13 July 2012

Firstpage

1

Lastpage

2

Abstract

In this study, the signal detection circuit of acoustic emission (AE) sensors was presented using Pb-free (Na, K)NbO₃ system ceramics with excellent g₃₃(=40.10× 10^-3 Vm/N) piezoelectric voltage constant. Signal detection circuit was consisted of the impedance converter, high-pass filter, the signal amplification circuit, and rectifying circuit. The signal converted by impedance converter was amplified by amplifier. Also, the amplified signal was converted and displayed from AC to DC through rectifying circuit.

Keywords

AC-DC power convertors; acoustic devices; acoustic emission; acoustic wave amplification; high-pass filters; impedance convertors; piezoceramics; piezoelectric devices; potassium compounds; rectifying circuits; signal detection; sodium compounds; (NaK)NbO₃; AC-DC converter; Pb-free system ceramics; acoustic emission sensors; amplified signal; high-pass filter; impedance converter; piezoelectric voltage constant; rectifying circuit; signal amplification circuit; signal detection circuit; Acoustic emission; Ceramics; Gas insulation; Impedance; Partial discharges; Rectifying circuits; Signal detection; Acoustic Emission Sensor; Impedance; OPAMP;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics held jointly with 2012 European Conference on the Applications of Polar Dielectrics and 2012 International Symp Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials (ISAF/ECAPD/PFM), 2012 Intl Symp

Conference_Location

Aveiro

Print_ISBN

978-1-4673-2668-1

Type

conf

DOI

10.1109/ISAF.2012.6297804

Filename

6297804