dc.contributor.authorFu, Yu
dc.contributor.authorShi, Hongjian
dc.contributor.authorQuan, Chenggen
dc.contributor.authorTay, Cho Jui
dc.identifier.citationFu, Y., Shi, H., Quan, C., & Tay, C. J. (2008). Dynamic measurement of micro-components by image-plane digital holography. International Conference on Experimental Mechanics, Nanjing, China, 7375, pp.1-6.en_US
dc.description.abstractA method for whole-field non-contact measurement of displacement, velocity and acceleration of a vibrating microobject based on digital holographic microscopy is presented. A micro-beam is excited by a fluctuating voltage with a sinusoidal configuration. A series of digital holograms are captured using a digital holographic microscope with a highspeed camera. The result of reconstruction is a three dimensional complex-valued matrix with noises. In this paper, Fourier analysis and windowed Fourier analysis are applied in both the spatial and temporal domains to extract the kinematic parameters. The instantaneous displacement is obtained by temporal phase unwrapping of the filtered wrapped phase map, while the velocity and acceleration are evaluated by windowed Fourier analysis along the time axis. The combination of digital holographic microscopy and temporal Fourier analyses is able to study the vibration without a phase ambiguity problem, and the instantaneous kinematic parameters on each point are obtained.en_US
dc.format.extent6 p.en_US
dc.rightsCopyright 2009 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.en_US
dc.subjectDRNTU::Science::Physics::Optics and light
dc.titleDynamic measurement of micro-components by image-plane digital holographyen_US
dc.typeConference Paper
dc.contributor.conferenceInternational Conference on Experimental Mechanics (2008 : Nanjing, China)en_US
dc.contributor.researchTemasek Laboratoriesen_US
dc.description.versionPublished versionen_US

Files in this item


This item appears in the following Collection(s)

Show simple item record