Real Time Detection of Second-Harmonic Components Generated from Plastic-Deformed Metal Rod Using Double-Layered Piezoelectric Transducer
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概要
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Second-harmonic components generated from plastic-deformed metal rods are detected in real time using a double-layered piezoelectric transducer (DLPT). The DLPT is composed of two transducers with the resonance frequency $ f_{0}$; its resonance frequencies are $ f_{0}/2$ when the transducers are connected in parallel and $ f_{0}$ when the transducers are connected in series. The performance of the DLPT used in this ultrasonic system is evaluated. Samples of plastic-deformed metal rods are prepared using tensile test equipment. The relative amplitude of the second-harmonic component of the metal rod increased by approximately 25 dB after the tensile tests compared with that before the tensile tests. The variation in tensile load of the second-harmonic components generated by plastic-deformed metal rods is accurately measured by our system.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2007-07-30
著者
-
Imano Kazuhiko
Department Of Electrical & Electronic Engineering Mining College Akita University
-
Nishihira Morimasa
Department Of Electrical And Electronic Engineering Faculty Of Engineering And Resource Science Akit
-
Fukuda Makoto
Department Of Applied Photonics System Technology
-
Imano Kazuhiko
Department of Electrical and Electronic Engineering, Faculty of Engineering and Resource Science, Akita University, Akita 010-8502, Japan
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