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Nature, 1974
THE range and sensitivity of turbulence detection by acoustic probing of the lower atmosphere initiated by McAllister et al.1 has in part been restricted by the use of low power acoustic pulses (generally ∼ 100 W). We shall briefly describe a pulsed high power (8.1 kW input) sound radar system and present representative data obtained with a 2.7 kW ...
I. A. BOURNE, T. D. KEENAN
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THE range and sensitivity of turbulence detection by acoustic probing of the lower atmosphere initiated by McAllister et al.1 has in part been restricted by the use of low power acoustic pulses (generally ∼ 100 W). We shall briefly describe a pulsed high power (8.1 kW input) sound radar system and present representative data obtained with a 2.7 kW ...
I. A. BOURNE, T. D. KEENAN
openaire +3 more sources
Interlaboratory Acoustic Power Measurement
Journal of Ultrasound in Medicine, 2003This article describes an American Institute of Ultrasound in Medicine-sponsored intercomparison of the results of acoustic power measurements performed by several laboratories.Two primary calibration techniques, namely, planar scanning and radiation force balance, were used in the frequency range typical of that in which sonographic imaging devices ...
Peter A, Lewin +4 more
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