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Proceedings Paper

Portable profilometer based on low-coherence interferometry and smart pixel camera
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Paper Abstract

Although low coherence interferometers are commercially available (e.g., white light interferometers), they are generally quite bulky, expensive, and offer limited flexibility. In the paper the new portable profilometer based on low coherence interferometry is presented. In the device the white light diode with controlled spectrum shape is used in order to increase the zero order fringe contrast, what allows for its better and quicker localization. For image analysis the special type of CMOS matrix (called smart pixel camera), synchronized with reference mirror transducer, is applied. Due to hardware realization of the fringe contrast analysis, independently in each pixel, the time of measurement decreases significantly. High speed processing together with compact design allows that profilometer to be used as the portable device for both in and out door measurements. The capabilities of the designed profilometer are well illustrated by a few application examples.

Paper Details

Date Published: 13 September 2010
PDF: 7 pages
Proc. SPIE 7387, Speckle 2010: Optical Metrology, 738714 (13 September 2010); doi: 10.1117/12.871532
Show Author Affiliations
Leszek Salbut, Warsaw Univ. of Technology (Poland)
Anna Pakuła, Warsaw Univ. of Technology (Poland)
Sławomir Tomczewski, Warsaw Univ. of Technology (Poland)
Adam Styk, Warsaw Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 7387:
Speckle 2010: Optical Metrology
Armando Albertazzi Goncalves Jr.; Guillermo H. Kaufmann, Editor(s)

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