Moire sensor as an automatic feeler gauge

Joanna Konwerska-Hrabowska; Tadeusz Kryszczynski; M. Smolka; P. Olbrysz; L. Widomski

doi:10.1117/12.57491

1 December 1991 Moiré sensor as an automatic feeler gauge

Joanna Konwerska-Hrabowska, Tadeusz Kryszczynski, M. Smolka, P. Olbrysz, L. Widomski

Proceedings Volume 1554, Second International Conference on Photomechanics and Speckle Metrology; (1991) https://doi.org/10.1117/12.57491
Event: San Diego, '91, 1991, San Diego, CA, United States

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.

Citation Download Citation

Joanna Konwerska-Hrabowska, Tadeusz Kryszczynski, M. Smolka, P. Olbrysz, and L. Widomski "Moiré sensor as an automatic feeler gauge", Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991); https://doi.org/10.1117/12.57491

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