Measuring Spatial Vibration Using Continuous Laser Scanning | Zendy

Izhak Bucher | Zendy; Oded Wertheim | Zendy

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Measuring Spatial Vibration Using Continuous Laser Scanning

Author(s) -

Izhak Bucher,

Oded Wertheim

Publication year - 2000

Publication title -

shock and vibration

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.418

H-Index - 45

eISSN - 1875-9203

pISSN - 1070-9622

DOI - 10.1155/2000/214348

Subject(s) - laser scanning vibrometry , laser doppler vibrometer , vibration , laser scanning , interferometry , laser , acoustics , computer science , optics , signal (programming language) , signal processing , work (physics) , line (geometry) , amplitude , point (geometry) , electronic engineering , engineering , physics , mathematics , digital signal processing , laser beams , mechanical engineering , geometry , programming language

This paper presents a method, which allows one to use a single point laser vibrometer as a continuous sensor measuring along a line or a 2D surface. The mathematical background of the curve-fitting procedure and the necessary signal processing allowing one to extract the amplitude of sinusoidal vibration are discussed. In the current work, use has been made with an ordinary laser interferometer equipped with glavanometer-based x, y mirros. This system is not designed for continuous scanning therefore some effort needs to be spent in order to overcome the dynamical characteristics of this system. The potential of such an instrument, as demonstrated in this work, may encourage the development of mechanically better scanning devices

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