Results 171 to 180 of about 75,030 (206)
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An interdigital transducer for ultrasonic nondestructive testing
Journal of Applied Physics, 1982A technique for nondestructive testing of materials is described, which uses two arched interdigital transducers operating at a liquid-solid interface. The transducer has a frequency-dependent radiation angle. Two pairs of arched interdigital electrodes on the same surface of a piezoelectric substrate are not in contact with the liquid.
Kohji Toda +3 more
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The dual harmonic interdigital transducers (DHIDT)
Proceedings of International Frequency Control Symposium, 2002In order to increase the operating frequency, many authors have addressed in different methods to overcome the difficulty of submicron processes in fabrications. Due to the great success that the quasi-harmonic interdigital transducers (QHIDT) have got, this paper presents a structure, called the harmonic dual interdigital transducers (DHIDT), in which
null Fan Zhai, null De Zhang
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Self-Consistent Theory of Interdigital Transducers
The Journal of the Acoustical Society of America, 1972The generation and absorption of surface waves by an interdigital transducer with uniform finger spacing are calculated with the aid of a surface dielectric constant related to the TM-wave impedance. It is found that the response of an infinite transducer can be calculated with complete consistency, i.e., the field due to the distortion of the ...
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Interdigitated interdigital transducer for surface elastometry of soft damping tissue.
IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 2015Measurement of the shear elastic constant of soft and highly damping tissue of high Poisson ratio is quite a challenging task. It is proposed to evaluate shear wave velocity and damping of tissue by measuring the shear skimming bulk waves using one interdigitated interdigital transducer on a piezoelectric layer, such as polyvinylidene fluoride, applied
Eugene, Danicki +2 more
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Electrode Resistance Effects in Interdigital Transducers
IEEE Transactions on Microwave Theory and Techniques, 1974A distributed RC circuit model is used to describe an interdigital electrode transducer (IDT) having finite conduction in the electrode stripes. The distributed circuit is described by a set of differential equations whose solutions yield the current and voltage distributions along the aperture of the IDT.
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The Deep Inlaid Interdigital Transducer
1981 Ultrasonics Symposium, 1981R. Chapman, E.G.S. Paige, M.W. Wagg
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Field Theory of Interdigital Transducers
1975 Ultrasonics Symposium, 1975M.J. Zuliani, V.M. Ristic, G.I. Stegeman
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Interdigital Lamb Wave Transducers for Applications in Structural Health Monitoring
NDT and E International, 2017Adam Martowicz, Michal Manka
exaly