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TECHNICAL PAPERS

On the Autonomous Gain and Phase Tailoring Transfer Functions of Symmetrically Distributed Piezoelectric Sensors

[+] Author and Article Information
Yu-Hsiang Hsu, Chih-Kung Lee

Institute of Applied Mechanics, National Taiwan University, Taipei, Taiwan 106, Republic of China

J. Vib. Acoust 126(4), 528-536 (Dec 21, 2004) (9 pages) doi:10.1115/1.1804994 History: Received June 24, 2004; Revised June 24, 2004; Online December 21, 2004
Copyright © 2004 by ASME
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References

Figures

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Schematic of a modal strain distribution for a one-dimensional plate in terms of (a) ϕi(x), (b) ϕie(x), and (c) ϕip(x)
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Schematic of a Symmetric APROPOS device with respect to the first mode
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Schematic of a Symmetric APROPOS device with respect to the first mode (thick line) and tenth mode (thin line)
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Effect of a symmetric distributed sensor using a Bode Plot, where G0(s) is the original transfer function of the cantilever plate (thick gray line), Gs(s) is the sensor transfer function that has been tailored by the Symmetric APROPOS device (thin dark line), Fl(s) is the transfer function of a low-pass filter (dashed-dot line), and GE(s) is the phase distribution of the sensor transfer function filtered by an electrical filter (dashed line)
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(a) Schematic of a symmetric piezoelectric distributed sensor, (b) Schematic of the effect of a Symmetric APROPOS device
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Experiment setup of a symmetric piezoelectric sensor
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Transfer function of a symmetric distributed sensor (dark line) versus an uniform sensor (gray line)
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Transfer function of a no-phase delay low-pass filter introduced by a symmetric piezoelectric distributed sensor

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