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Title: New method for measuring dynamic response of small components by fringe projection
Authors: Tay, C.J. 
Quan, C. 
Shang, H.M. 
Wu, T.
Wang, S. 
Keywords: Dynamic response
Fast fourier transform
Fringe projection
High-speed camera
Issue Date: Jun-2003
Citation: Tay, C.J., Quan, C., Shang, H.M., Wu, T., Wang, S. (2003-06). New method for measuring dynamic response of small components by fringe projection. Optical Engineering 42 (6) : 1715-1720. ScholarBank@NUS Repository.
Abstract: We describe the use of an optical fringe projection method to measure the dynamic response of small components. In this method, sinusoidal fringes are projected on a small component using a programmable liquid crystal display (LCD) projector and a long-working-distance microscope (LDM). The image of the fringe pattern is captured by another LDM and a high-speed camera and subsequently processed by the fast Fourier transform (FFT) technique. A simple procedure is described that enables calibration of the optical setup for subsequent amplitude and frequency measurement of small vibrating components. A method that enhances the detection range of the system is also included.
Source Title: Optical Engineering
ISSN: 00913286
DOI: 10.1117/1.1570824
Appears in Collections:Staff Publications

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