Please use this identifier to cite or link to this item:
|Title:||Vibration measurement of a miniature component by high-speed image-plane digital holographic microscopy|
|Authors:||Yu, F. |
|Citation:||Yu, F., Hongjian, S., Hong, M. (2009-04-10). Vibration measurement of a miniature component by high-speed image-plane digital holographic microscopy. Applied Optics 48 (11) : 1990-1997. ScholarBank@NUS Repository. https://doi.org/10.1364/AO.48.001990|
|Abstract:||Measuring deformation of vibrating specimens whose dimensions are in the submillimeter range introduces a number of difficulties using laser interferometry. Normal interferometry is not suitable because of a phase ambiguity problem. In addition, the noise effect is much more serious in the measurement of small objects because a high-magnification lens is used. We present a method for full-field measurement of displacement, velocity, and acceleration of a vibrating miniature object based on image-plane digital holographic microscopy. A miniature cantilever beam is excited by a piezoelectric transducer stage with a sinusoidal configuration. A sequence of digital holograms is captured using a high-speed digital holographic microscope. Windowed Fourier analysis is applied in the spatial and spatiotemporal domains to extract the displacement, velocity and acceleration. The result shows that a combination of image- plane digital holographic microscopy and windowed Fourier analyses can be used to study vibration without encountering a phase ambiguity problem, and one can obtain instantaneous kinematic parameters on each point. ©2009 Optical Society of America.|
|Source Title:||Applied Optics|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jun 16, 2018
WEB OF SCIENCETM
checked on May 30, 2018
checked on Jun 1, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.