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

High-speed digital holographic interferometry for vibration measurement

Giancarlo Pedrini, Wolfgang Osten, and Mikhail E. Gusev
Appl. Opt. 45(15) 3456-3462 (2006)

Pulsed digital holographic interferometry for dynamic measurement of rotating objects with an optical derotator

Carlos Pérez-López, Fernando Mendoza Santoyo, Giancarlo Pedrini, Staffan Schedin, and Hans J. Tiziani
Appl. Opt. 40(28) 5106-5110 (2001)

Full-field laser heterodyne imaging vibrometry using a CMOS–DVR system

Wen Xiao, Zonghui Chen, Feng Pan, Xueqin Hou, Hongliang Hao, and Zhuang Guo
Appl. Opt. 60(27) 8513-8523 (2021)

Stroboscopic holographic interferometry: measurements of vector components of a vibration

P. Hariharan, B. F. Oreb, and C. H. Freund
Appl. Opt. 26(18) 3899-3903 (1987)

On-line surveillance of a dynamic process by a moving system based on pulsed digital holographic interferometry

Giancarlo Pedrini, Igor Alexeenko, Wolfgang Osten, and Ulf Schnars
Appl. Opt. 45(5) 935-943 (2006)