Difference displacement measurement using digital holography
| Autor: | Janos Kornis, Zoltán Füzessy, Balázs Gombkötő |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Pointwise
Computer science business.industry Holography Measure (physics) Image plane Atomic and Molecular Physics and Optics Displacement (vector) Electronic Optical and Magnetic Materials law.invention Optics law Range (statistics) Electrical and Electronic Engineering Physical and Theoretical Chemistry business Digital holography |
| Zdroj: | Optics Communications. 214:115-121 |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/s0030-4018(02)02183-1 |
| Popis: | A new digital holography method for the measurement of difference of displacements is presented, which is based on a pointwise non-linear mathematical operation in the image plane. The method can measure sum of displacements too. Basic principles and experimental verification are described. Some experiments concerning the measuring range of the method were performed. A new approach, named artificial phase-shifting, producing phase-shifted interferograms without use of an actual phase-shifting device in the experiment, is also presented. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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