Paper
1 January 1991 Interferometric measurement of in-plane motion
Michael Hercher, Geert J. Wijntjes
Author Affiliations +
Abstract
Interferometric metrology in which transverse or in-plane measurements are made is discussed. This technique can measure the displacements of diffusely scattering surfaces with microinch resolution and accuracies on the order of 0.01 percent and the displacements of relatively coarse scales with submicroinch precision and an accuracy determined by the scale itself at speeds over 100 ft/sec. The measurement principle and geometry are described and the measurement of the interferometric phase is addressed. The system design is presented.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michael Hercher and Geert J. Wijntjes "Interferometric measurement of in-plane motion", Proc. SPIE 1332, Optical Testing and Metrology III: Recent Advances in Industrial Optical Inspection, (1 January 1991); https://doi.org/10.1117/12.51111
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CITATIONS
Cited by 1 scholarly publication and 2 patents.
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KEYWORDS
Sensors

Interferometry

Signal detection

Head

Motion measurement

Fringe analysis

Modulation

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