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Proceedings Paper

Moire sensor as an automatic feeler gauge
Author(s): Joanna Konwerska-Hrabowska; Tadeusz Kryszczynski; M. Smolka; P. Olbrysz; L. Widomski
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Paper Abstract

Two identical gratings crossed by a small angle Φ create moiré fringes. Knowledge of the distance d between the fringes allows one to state a value of angle Φ between the gratings. The angle Φ can be used a measure of either angular or linear movement. The above is utilized for the construction of sensors having a linear relation between angular and linear displacements. Two solutions for measuring the distance d in a real time situation are presented: one with an "optical path" and the other with an "electronic path". In both the CCD elements are used.

Paper Details

Date Published: 1 December 1991
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Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991); doi: 10.1117/12.57491
Show Author Affiliations
Joanna Konwerska-Hrabowska, Warsaw Univ. of Technology (Poland)
Tadeusz Kryszczynski, Institute of Meteorology and Water Management (Poland)
M. Smolka, Institute of Meteorology and Water Management (Poland)
P. Olbrysz, Institute of Meteorology and Water Management (Poland)
L. Widomski, Warsaw Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 1554:
Second International Conference on Photomechanics and Speckle Metrology
Fu-Pen Chiang; Fu-Pen Chiang, Editor(s)

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