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

In this study, the signal detection circuit of acoustic emission (AE) sensors was presented using Pb-free (Na, K)NbO 3 system ceramics with excellent g 33 (=40.10× 10 -3 Vm/N) piezoelectric voltage constant. Signal detection circuit was consisted of the impedance converter, high-pass filter, the sig...

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Bibliographic Details
Main Authors: Jichul Park, Lakhoon Hwang, Sunmin Byeon, Juhyun Yoo, Yeongho Jeong
Format: Conference Proceeding
Language:English
Subjects:
Acoustic emission
Acoustic Emission Sensor
Ceramics
Gas insulation
Impedance
OPAMP
Partial discharges
Rectifying circuits
Signal detection
Online Access:Request full text
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Summary:In this study, the signal detection circuit of acoustic emission (AE) sensors was presented using Pb-free (Na, K)NbO 3 system ceramics with excellent g 33 (=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.
ISSN:1099-4734
2375-0448
DOI:10.1109/ISAF.2012.6297804