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IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

Issue 2 • Date Feb. 2003

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Displaying Results 1 - 15 of 15
  • Measurement of longitudinal piezoelectric coefficient of thin films by a laser-scanning vibrometer

    Publication Year: 2003, Page(s):113 - 116
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB) | HTML iconHTML

    A laser scanning vibrometer (LSV) was used for the first time to measure the piezoelectric coefficient of ferroelectric thin films based on the converse piezoelectric effect. The significant advantages of the use of the LSV or this purpose were demonstrated. Several key points were discussed in order to achieve reliable and accurate results. View full abstract»

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  • Stability analysis of an acoustically levitated disk

    Publication Year: 2003, Page(s):117 - 127
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2063 KB) | HTML iconHTML

    In this paper, a model is developed for the stability analysis of an acoustically levitated disk on the basis of analyzing eddy acoustic streaming and acoustic viscous stress. In the model, the effect of the acoustic streaming outside the boundary layer that is on the surface of the levitated disk is properly taken into account. Also, the calculation of sound field and acoustic viscous stress is l... View full abstract»

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  • Adaptive imaging using the generalized coherence factor

    Publication Year: 2003, Page(s):128 - 141
    Cited by:  Papers (85)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1503 KB) | HTML iconHTML

    Sound-velocity inhomogeneities degrade both spatial and contrast resolutions. This paper proposes a new adaptive imaging technique that uses the generalized coherence factor (GCF) to reduce the focusing errors resulting from the sound-velocity inhomogeneities. The GCF is derived from the spatial spectrum of the received aperture data after proper receive delays have been applied. It is defined as ... View full abstract»

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  • Dynamic-transmit focusing using time-dependent focal zone and center frequency

    Publication Year: 2003, Page(s):142 - 152
    Cited by:  Papers (12)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2003 KB) | HTML iconHTML

    A method for achieving dynamic-transmit focus is presented. Within an initial high bandwidth pulse, successively higher frequencies are focused to successively closer focal zones along a transmitted beam line. During the receive operation, a time varying bandpass filter initially passes the higher frequencies that are focused closer in and successively passes lower center frequencies as time evolv... View full abstract»

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  • Superthreshold behavior and threshold estimation of ultrasound-induced lung hemorrhage in pigs: Role of age dependency

    Publication Year: 2003, Page(s):153 - 169
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1080 KB) | HTML iconHTML

    Age-dependent threshold and superthreshold behavior of ultrasound-induced lung hemorrhage were investigated with 116 2.1 /spl plusmn/ 0.3-kg neonate crossbred pigs (4.9 /spl plusmn/ 1.6 days old), 103 10 /spl plusmn/ 1.1-kg crossbred pigs (39 /spl plusmn/ 5 days old), and 104 20 /spl plusmn/ 1.2-kg crossbred pigs (58 /spl plusmn/ 5 days old). Exposure conditions were: 3.1 MHz, 10-s exposure durati... View full abstract»

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  • Optimization of buffer rod geometry for ultrasonic sensors with reference path

    Publication Year: 2003, Page(s):170 - 178
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1184 KB) | HTML iconHTML

    Several applications of ultrasonic techniques are limited by the signal-to-noise ratio (SNR). Transducers in these applications usually operate in the pulse-echo mode. Many transducers, especially those for high temperatures, use buffer rods. Often a reference path is used to eliminate electrical and transducer drift. Interference of echo signals and noise causes errors of both amplitude and phase... View full abstract»

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  • A single-element tuning fork piezoelectric linear actuator

    Publication Year: 2003, Page(s):179 - 186
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1639 KB) | HTML iconHTML

    This paper describes the design of a piezoelectric tuning-fork, dual-mode motor. The motor uses a single multilayer piezoelectric element in combination with tuning fork and shearing motion to form an actuator using a single drive signal. Finite-element analysis was used in the design of the motor, and the process is described along with the selection of the device's materials and its performance.... View full abstract»

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  • Equations for small fields superposed on finite biasing fields in a thermoelectroelastic body

    Publication Year: 2003, Page(s):187 - 192
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB) | HTML iconHTML

    Equations for infinitesimal incremental fields superposed on finite biasing fields in a thermoelectroelastic body are derived from the nonlinear equations of thermoelectroelasticity. The equations are general in the sense that no assumptions are made on the biasing fields. The general equations obtained are reduced to various special cases under different approximations. View full abstract»

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  • Conventional detection of 2,4-dinitrophenol using quartz crystal microbalance

    Publication Year: 2003, Page(s):193 - 195
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (466 KB) | HTML iconHTML

    We present conventional detection of 2,4-dinitrophenol (DNP) for using the competitive reaction between DNP and DNP-conjugated albumin onto DNP antibody immobilized quartz crystal microbalance (QCM). This QCM method allows detection of DNP concentration in the range of 0.01 to 100 ng/ml; linear correlation obtains DNP concentration from 1 to 100 ng/ml. View full abstract»

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  • [Front cover]

    Publication Year: 2003, Page(s): i
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    Freely Available from IEEE
  • [Inside front cover]

    Publication Year: 2003, Page(s): ii
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  • [Inside back cover]

    Publication Year: 2003, Page(s): iii
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  • Table of contents

    Publication Year: 2003, Page(s): iv
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  • Information for contributors

    Publication Year: 2003, Page(s):109 - 112
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  • Call for Papers for the 2003 IEEE Ultrasonics Symposium

    Publication Year: 2003, Page(s):196 - 197
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Aims & Scope

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control focuses on the theory, design, and application on generation, transmission, and detection of bulk and surface mechanical waves.

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Meet Our Editors

Editor-in-Chief
Steven Freear
s.freear@leeds.ac.uk