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The Measurement of Ultrasonic Power Using an Acousto-Optic Method

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During the last few years the application of ultrasound in medical diagnosis has gained an increasing importance. This development is of great interest for, compared with X-ray diagnosis, ultrasonic diagnosis gives additional information and reduces the hazard to the human organism. To characterize the properties of medical ultrasonic devices, among other things, the peak values of the sound pressure or of the pressure gradient and the radiated power must be known. This paper deals with the measurement of ultrasonic power by means of an acousto-optic method covering a frequency range from 1 MHz to 8.7 MHz. For comparison investigations, the radiation force method is used. The optical technique based on the light diffraction by ultrasonic waves is evaluated for two different approximate solutions of the Raman-Nath differential equation. Test results and the limits of the applied method are indicated.
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Document Type: Research Article

Publication date: November 1, 1976

More about this publication?
  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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