Digital holographic interferometry for simultaneous orthogonal radial vibration measurementsalong rotating shafts
Applied Optics, Vol. 47, Issue 18, pp. 3269-3274 (2008)
http://dx.doi.org/10.1364/AO.47.003269
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Abstract
A digital holographic interferometry setup used to measure radial vibrations along a rotating shaft is presented. A continuous Nd:YAG laser and a high-speed digital camera are used for recording the holograms. The shaft was polished optically smooth to avoid speckle noise from the rotating surface. The light reflected from the shaft was directed onto a diffuser which in turn was imaged by the holographic system. Simultaneous measurements with a laser vibrometer were performed at one point and comparisons between the signals showed good agreement. It is shown that different vibration components of a rotating shaft can be simultaneously measured with this technique.
© 2008 Optical Society of America
OCIS Codes
(090.2880) Holography : Holographic interferometry
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.4290) Instrumentation, measurement, and metrology : Nondestructive testing
(120.7280) Instrumentation, measurement, and metrology : Vibration analysis
ToC Category:
Holography
History
Original Manuscript: February 11, 2008
Revised Manuscript: May 9, 2008
Manuscript Accepted: May 26, 2008
Published: June 11, 2008
Citation
Kourosh Tatar, Per Gren, and Henrik Lycksam, "Digital holographic interferometry for simultaneous orthogonal radial vibration measurementsalong rotating shafts," Appl. Opt. 47, 3269-3274 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-18-3269
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