Shape measurement by active homodyne phase-stepping in a fibre optic fringe projector

A. J. Moore; R. McBride; J. S. Barton; J. D C Jones

Shape measurement by active homodyne phase-stepping in a fibre optic fringe projector

A. J. Moore, R. McBride, J. S. Barton, J. D C Jones

School of Engineering & Physical Sciences

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

Abstract

We describe an extension of the active homodyne feedback technique in order to produce stabilized, p/2 radian phase steps in a full-field interferometer used to project interference fringes onto a test-object and hence to measure its shape. The phase stability and accuracy of each step was measured to be 17 milliradians in a 50 Hz bandwidth.

Original language	English
Pages (from-to)	692-695
Number of pages	4
Journal	Proceedings of SPIE
Volume	4185
Publication status	Published - 2000
Event	14th International Conference on Optical Fiber Sensors - Venice, Italy Duration: 11 Oct 2000 → 13 Oct 2000

Cite this

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title = "Shape measurement by active homodyne phase-stepping in a fibre optic fringe projector",

abstract = "We describe an extension of the active homodyne feedback technique in order to produce stabilized, p/2 radian phase steps in a full-field interferometer used to project interference fringes onto a test-object and hence to measure its shape. The phase stability and accuracy of each step was measured to be 17 milliradians in a 50 Hz bandwidth.",

author = "Moore, \{A. J.\} and R. McBride and Barton, \{J. S.\} and Jones, \{J. D C\}",

year = "2000",

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TY - JOUR

T1 - Shape measurement by active homodyne phase-stepping in a fibre optic fringe projector

AU - Moore, A. J.

AU - McBride, R.

AU - Barton, J. S.

AU - Jones, J. D C

PY - 2000

Y1 - 2000

N2 - We describe an extension of the active homodyne feedback technique in order to produce stabilized, p/2 radian phase steps in a full-field interferometer used to project interference fringes onto a test-object and hence to measure its shape. The phase stability and accuracy of each step was measured to be 17 milliradians in a 50 Hz bandwidth.

AB - We describe an extension of the active homodyne feedback technique in order to produce stabilized, p/2 radian phase steps in a full-field interferometer used to project interference fringes onto a test-object and hence to measure its shape. The phase stability and accuracy of each step was measured to be 17 milliradians in a 50 Hz bandwidth.

UR - https://www.scopus.com/pages/publications/0034459098

M3 - Article

VL - 4185

SP - 692

EP - 695

JO - Proceedings of SPIE

JF - Proceedings of SPIE

T2 - 14th International Conference on Optical Fiber Sensors

Y2 - 11 October 2000 through 13 October 2000

ER -

Shape measurement by active homodyne phase-stepping in a fibre optic fringe projector

Abstract

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