Vibration measurement of miniature component by high-speed image-plane digital holographic microscopy
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 ad...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2010
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/91809 http://hdl.handle.net/10220/6473 |
| _version_ | 1826114261028438016 |
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| author | Miao, Hong Fu, Yu Shi, Hongjian |
| author2 | Temasek Laboratories |
| author_facet | Temasek Laboratories Miao, Hong Fu, Yu Shi, Hongjian |
| author_sort | Miao, Hong |
| collection | NTU |
| description | 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 imageplane
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. |
| first_indexed | 2024-10-01T03:36:16Z |
| format | Journal Article |
| id | ntu-10356/91809 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:36:16Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | ntu-10356/918092020-09-26T22:17:02Z Vibration measurement of miniature component by high-speed image-plane digital holographic microscopy Miao, Hong Fu, Yu Shi, Hongjian Temasek Laboratories DRNTU::Science::Physics::Optics and light 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 imageplane 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. Published version 2010-11-23T08:59:30Z 2019-12-06T18:12:18Z 2010-11-23T08:59:30Z 2019-12-06T18:12:18Z 2009 2009 Journal Article Fu, Y., Shi, H., & Miao, H. (2009). Vibration measurement of miniature component by high-speed image-plane digital holographic microscopy. Applied Optics, 48(11), 1990-1997. 0003-6935 https://hdl.handle.net/10356/91809 http://hdl.handle.net/10220/6473 10.1364/AO.48.001990 en Applied Optics This paper was published in [Applied Optics] and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: [http://www.opticsinfobase.org/abstract.cfm?URI=ao-48-11-1990]. Systematic or multiple reproduction or distribution to multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law. 8 p. application/pdf |
| spellingShingle | DRNTU::Science::Physics::Optics and light Miao, Hong Fu, Yu Shi, Hongjian Vibration measurement of miniature component by high-speed image-plane digital holographic microscopy |
| title | Vibration measurement of miniature component by high-speed image-plane digital holographic microscopy |
| title_full | Vibration measurement of miniature component by high-speed image-plane digital holographic microscopy |
| title_fullStr | Vibration measurement of miniature component by high-speed image-plane digital holographic microscopy |
| title_full_unstemmed | Vibration measurement of miniature component by high-speed image-plane digital holographic microscopy |
| title_short | Vibration measurement of miniature component by high-speed image-plane digital holographic microscopy |
| title_sort | vibration measurement of miniature component by high speed image plane digital holographic microscopy |
| topic | DRNTU::Science::Physics::Optics and light |
| url | https://hdl.handle.net/10356/91809 http://hdl.handle.net/10220/6473 |
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