Two-dimensional small-rotation-angle measurement using an imaging method

Takamasa Suzuki; Takanori Endo; Osami Sasaki; John E. Greivenkamp

doi:10.1117/1.2188945

Two-dimensional small-rotation-angle measurement using an imaging method

Takamasa Suzuki, Takanori Endo, Osami Sasaki, John E. Greivenkamp

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Abstract

A two-dimensional mall-rotation-angle measurement system based on fringe projection is proposed and demonstrated. Simple and effective signal processing is described and applied to the angular calculation. Several measurements indicate a measurement accuracy of ≈-0.4 arcsec, which is comparable to that of a high-priced autocollimator. The two-dimensional two-pitch grating used in our prototype system provides a wide measurement range, which is expected to reach 1300 arcsec for both x- and y-direction rotations.

Original language	English (US)
Article number	043604
Journal	Optical Engineering
Volume	45
Issue number	4
DOIs	https://doi.org/10.1117/1.2188945
State	Published - Apr 2006

Keywords

Fourier transform method
Fringe projection
Rotation-angle measurement
Two-dimensional grating

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
General Engineering

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10.1117/1.2188945

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abstract = "A two-dimensional mall-rotation-angle measurement system based on fringe projection is proposed and demonstrated. Simple and effective signal processing is described and applied to the angular calculation. Several measurements indicate a measurement accuracy of ≈-0.4 arcsec, which is comparable to that of a high-priced autocollimator. The two-dimensional two-pitch grating used in our prototype system provides a wide measurement range, which is expected to reach 1300 arcsec for both x- and y-direction rotations.",

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AU - Sasaki, Osami

AU - Greivenkamp, John E.

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Y1 - 2006/4

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AB - A two-dimensional mall-rotation-angle measurement system based on fringe projection is proposed and demonstrated. Simple and effective signal processing is described and applied to the angular calculation. Several measurements indicate a measurement accuracy of ≈-0.4 arcsec, which is comparable to that of a high-priced autocollimator. The two-dimensional two-pitch grating used in our prototype system provides a wide measurement range, which is expected to reach 1300 arcsec for both x- and y-direction rotations.

KW - Fourier transform method

KW - Fringe projection

KW - Rotation-angle measurement

KW - Two-dimensional grating

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Two-dimensional small-rotation-angle measurement using an imaging method

Abstract

Keywords

ASJC Scopus subject areas

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