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IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

Issue 4 • April 2004

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Displaying Results 1 - 18 of 18
  • IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control - Front cover

    Publication Year: 2004, Page(s):1 - 2
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  • IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control - Inside front cover

    Publication Year: 2004, Page(s): 3
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  • [Inside back cover]

    Publication Year: 2004, Page(s): 4
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  • IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control - Table of contents

    Publication Year: 2004, Page(s):5 - 6
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  • Information for Contributors

    Publication Year: 2004, Page(s):373 - 377
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  • A multimedia example

    Publication Year: 2004, Page(s): 378
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  • Call for Papers - Special Issue on Micromachined Ultrasonic Transducers

    Publication Year: 2004, Page(s): 379
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  • The microwave characterization of single crystal lithium and calcium fluoride at cryogenic temperatures

    Publication Year: 2004, Page(s):380 - 386
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (726 KB) | HTML iconHTML

    The whispering-gallery mode method is used for very accurate permittivity and dielectric loss measurements of single crystal lithium fluoride (LiF) and calcium fluoride (CaF/sub 2/) over the temperature range of 4.5 K to 300 K. The absolute uncertainty in the real part of permittivity was estimated to be less than 0.1%, and it was limited principally by uncertainty in dimensions of the samples. Di... View full abstract»

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  • Force transfer model and characteristics of hybrid transducer type ultrasonic motors

    Publication Year: 2004, Page(s):387 - 395
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1045 KB) | HTML iconHTML

    The characteristics of longitudinal-torsional hybrid transducer-type ultrasonic motors (HTUSM) are low speed and high torque. The discontinuous-surface-contact mode between the stator and the rotor is different from the many-point-contact mode of traveling wave motors, which is also an essential cause for high torque. Therefore, it is important to analyze its force transfer model between the rotor... View full abstract»

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  • Supersonic shear imaging: a new technique for soft tissue elasticity mapping

    Publication Year: 2004, Page(s):396 - 409
    Cited by:  Papers (365)  |  Patents (29)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5708 KB) | HTML iconHTML Multimedia Media

    Supersonic shear imaging (SSI) is a new ultrasound-based technique for real-time visualization of soft tissue viscoelastic properties. Using ultrasonic focused beams, it is possible to remotely generate mechanical vibration sources radiating low-frequency, shear waves inside tissues. Relying on this concept, SSI proposes to create such a source and make it move at a supersonic speed. In analogy wi... View full abstract»

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  • Measuring the nonlinear elastic properties of tissue-like phantoms

    Publication Year: 2004, Page(s):410 - 419
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB) | HTML iconHTML

    A direct mechanical system simultaneously measuring external force and deformation of samples over a wide dynamic range is used to obtain force-displacement curves of tissue-like phantoms under plain strain deformation. These measurements, covering a wide deformation range, then are used to characterize the nonlinear elastic properties of the phantom materials. The model assumes incompressible med... View full abstract»

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  • Regularized autoregressive analysis of intravascular ultrasound backscatter: improvement in spatial accuracy of tissue maps

    Publication Year: 2004, Page(s):420 - 431
    Cited by:  Papers (5)  |  Patents (37)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1171 KB) | HTML iconHTML

    Autoregressive (AR) models are qualified for analysis of stochastic, short-time data, such as intravascular ultrasound (IVUS) backscatter. Regularization is required for AR analysis of short data lengths with an aim to increase spatial accuracy of predicted plaque composition and was achieved by determining suitable AR orders for short data records. Conventional methods of determining order were c... View full abstract»

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  • Design and performance of a thin, solid layer for high-resolution, dry-contact acoustic imaging

    Publication Year: 2004, Page(s):432 - 438
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (771 KB) | HTML iconHTML

    Compared to the usual water immersion case, more effective transmission and reception of high-frequency ultrasound through a thin, solid layer are reported. A theoretical model is presented to perform the signal amplification and the signal modulation toward the higher frequency components for getting the high-quality acoustic images without immersing the object to be imaged. Also, the thin, solid... View full abstract»

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  • Interface delamination of layered media: acoustic spectroscopy and modal analysis

    Publication Year: 2004, Page(s):439 - 443
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB) | HTML iconHTML

    We have developed a method of resonance ultrasound spectroscopy (RUS) to study the acoustic spectral response to interface delamination in a triple-layered rectangular parallelepiped [Al (aluminum) /polymer/ Al]. Combination of laser-Doppler interferometry and the Rayleigh-Ritz approximation affected mode identification in the measured resonance spectrum. Point-contact RUS is capable of sensing a ... View full abstract»

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  • Electrostatics of interdigital transducers

    Publication Year: 2004, Page(s):444 - 452
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (213 KB) | HTML iconHTML

    Interdigital transducers are systems of conducting strips on a piezoelectric halfspace; in some systems, the groups of strips repeat periodically over a transducer counting hundreds of strips that can be considered infinite. An infinite planar periodic system of groups of strips with adequate period, sufficiently large if necessary, is considered to model an electric field in the plane of strips. ... View full abstract»

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  • A compliance/stiffness matrix formulation of general Green's function and effective permittivity for piezoelectric multilayers

    Publication Year: 2004, Page(s):453 - 463
    Cited by:  Papers (54)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (507 KB) | HTML iconHTML

    This paper presents an efficient and stable recursive compliance matrix method for analyzing wave propagation in multilayered piezoelectric media. The effective permittivity and generalized Green's functions for a layered system, a layered system on a substrate, and a layered system between two substrates have been obtained from the elements of the total or surface compliance/stiffness matrices, w... View full abstract»

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  • Small and low-loss IF SAW filters using zinc oxide film on quartz substrate

    Publication Year: 2004, Page(s):464 - 469
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (996 KB) | HTML iconHTML

    It was previously reported that a Rayleigh wave propagating on a zinc oxide film (ZnO)/ST-cut 35/spl deg/X propagation quartz substrate structure has the characteristics of an excellent temperature coefficient of frequency (TCF) and a large electromechanical coupling factor k.. This substrate was applied to various intermediate-frequency (IF) stage filters. During the filter development, it was cl... View full abstract»

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  • Effect of transverse force on the performance of quartz resonator force sensors

    Publication Year: 2004, Page(s):470 - 476
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (823 KB) | HTML iconHTML

    This paper discusses the effect of transverse force on the performance of quartz crystal resonator (QXR) force sensors that use symmetrical incomplete circular QXRs as sensing elements. Based on Lee's vibration theory and the transverse force-induced stress distribution, frequency changes are derived. This result and finite element method (FEM) are applied to investigate the performance of two met... View full abstract»

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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