Title
Dual channel heterodyne interferometer Dual channel heterodyne interferometer
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
conferenceObject
Publication
s.l. , [*]
Subject
Physics
Engineering sciences. Technology
Source (book)
Proceedings of the International Conference on Noise and Vibration Engineering / Sas, P. [edit.]
ISBN
90-73802-82-2
ISI
000239814904027
Carrier
E
Target language
English (eng)
Affiliation
University of Antwerp
Abstract
A standard heterodyne interferometer is capable of performing single-point vibration measurements. We have developed an instrument with a dual beam facility, allowing simultaneous vibration measurements at two different points of interest, that can be chosen at will. This instrument allows us to perform direct transfer function measurements of vibrating systems, or to study the phase relation between two different points of a vibrating structure. The dual beam heterodyne interferometer has been tested using a circular piezo-electric plate which shows a rich resonance structure in the region of 1-40 kHz.
E-info
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