IEEE 1984 Ultrasonics Symposium: Proceedings, November 14-16, 1984, Dallas Hilton Hotel, 1914 Commerce St., Dallas, Texas, Volume 2 |
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Page 604
... transmission mode . In this paper , the method has been further developed in the case of reflection mode microscopes . For the narrow opening angle of the acoustic lens , topographical images of solid surfaces are obtained and also ...
... transmission mode . In this paper , the method has been further developed in the case of reflection mode microscopes . For the narrow opening angle of the acoustic lens , topographical images of solid surfaces are obtained and also ...
Page 751
... transmission mode ( shown as boxes ) . For comparison with the estimates obtained from backscatter , a linear least - squares fit to the transmission attenuation shown in Figure 3 with fo 5 MHz yields ão 3.26 0.04 dB cm and a1 = 0.74 ...
... transmission mode ( shown as boxes ) . For comparison with the estimates obtained from backscatter , a linear least - squares fit to the transmission attenuation shown in Figure 3 with fo 5 MHz yields ão 3.26 0.04 dB cm and a1 = 0.74 ...
Page 752
... transmission mode ( boxes ) . A least squares fit to the transmission mode attenuation yields ( 5 ) 11.04 ± 0.05 dB cm - 1 and â1 = 1.87 ± 0.03 dB cm - ' MHz - 1 . The attenua- tion estimated from backscatter appears to be an adequate ...
... transmission mode ( boxes ) . A least squares fit to the transmission mode attenuation yields ( 5 ) 11.04 ± 0.05 dB cm - 1 and â1 = 1.87 ± 0.03 dB cm - ' MHz - 1 . The attenua- tion estimated from backscatter appears to be an adequate ...
Contents
JJ5 Vapor sensing by means of a Zn0onSi | 565 |
ing a laser probe | 656 |
EE2 Further studies on ultrasonic backscatter | 666 |
Copyright | |
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absorption acoustic impedance acoustic microscope acoustic waves Acoustical Imaging amplitude analysis angle applicator attenuation attenuation coefficient backscatter bandwidth beam beamformer calculated coefficient corrosion crack curve density depth detection diffraction display echo effects elastic electrical electron element equation evaluation experimental field Figure film filter focal focus focused Fourier transform function hematocrit hydrophone IEEE incident intensity interface laser layer lens linear longitudinal wave material measured medium method mode modulation normal obtained optical output parametric array phantom phased array Phys piezoelectric plane plate probe processing propagation pulse ratio Rayleigh waves receiver reflection reflection coefficient resolution resonant sample scanning scattering shown in Fig shows signal simulation sonic spatial specimen spectral spectrum structure surface surface acoustic waves technique temperature thermal wave thermoacoustic thickness tion tissue tomography Trans transducer transmission tumor ultrasonic ultrasound velocity vibration voltage waveform wavelength width zircaloy