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Detection of low-amplitude acoustic vibrations of real (not model) objects, such as ultrasonic transducers, is an important scientific and technique problem. Homodyne laser vibrometers are suitable for practical applications in this regard for their high sensitivity which is limited in principle only by shot-noise of the laser used. These vibrometers allow detection at a distance, with high spatial localization of the measurement region and wide frequency range.
© 2001 EPS
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