Abstract
A simple spatial phase-shifting setup that uses a tiled mirror and a cat's-eye retroreflector is presented. It can be used in displacement measurement when high speed and accuracy are required. An experiment is carried out to demonstrate the feasibility of the method. A root mean square (rms) accuracy of better than 5 deg is obtained in ordinary circumstance. The system errors are also studied briefly.
Original language | English |
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Pages (from-to) | 2006-2009 |
Number of pages | 4 |
Journal | Optical Engineering |
Volume | 42 |
Issue number | 7 |
DOIs | |
Publication status | Published - 1 Jul 2003 |
Externally published | Yes |