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8 September 1994 Vibration intensity measurement of fluttering webs by laser-Doppler sensors
Peter M. Moretti, Young Bae Chang, Krishna Vedula
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Proceedings Volume 2358, First International Conference on Vibration Measurements by Laser Techniques: Advances and Applications; (1994) https://doi.org/10.1117/12.185356
Event: Vibration Measurements by Laser Techniques: First International Conference, 1994, Ancona, Italy
Abstract
Acoustic intensity measurement techniques have been widely used for finding the acoustic power of a sound source from the acoustic energy flux in the space around it. Similar methods have been tried for measuring the vibration intensity or energy flux in plate structures, which require multi-point measurements with accurate information on phase differences. The present study extends the technique to web flutter in paper and plastic film manufacturing. The fundamental concepts of wave intensity are discussed, and the use of two laser-Doppler vibrometers is demonstrated. This study has application to flutter problems in paper dryers and in air-flotation ovens for plastic films.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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Peter M. Moretti, Young Bae Chang, and Krishna Vedula "Vibration intensity measurement of fluttering webs by laser-Doppler sensors", Proc. SPIE 2358, First International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (8 September 1994); https://doi.org/10.1117/12.185356
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KEYWORDS
Acoustics
Sensors
Manufacturing
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