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Acoustic interferometer : ウィキペディア英語版 | Acoustic interferometer An acoustic interferometer is an instrument, using interferometry, for measuring the physical characteristics of sound waves in a gas or liquid. It may be used to measure velocity, wavelength, absorption, or impedance. A vibrating crystal creates the ultrasonic waves that are radiated into the medium. The waves strike a reflector placed parallel to the crystal. The waves are then reflected back to the source and measured. ==See also==
* Acoustic microscopy
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Acoustic interferometer」の詳細全文を読む
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