1 May 2017 Optimized measurement of gaps
Author Affiliations +
Abstract
Gaps are important in a wide range of measurements in manufacturing, from the fitting of critical assemblies too cosmetic features on cars. There are a variety of potential sensors that can measure a gap opening, each with aspects of gap measurements that they do well and other aspects where the technology may lack capability. This paper provides a review of a wide range of optical gages from structured light to passive systems and from line to area measurement. Each technology is considered relative to the ability to accurately measure a gap, including issues of edge effects, edge shape, surface finish, and transparency. Finally, an approach will be presented for creating an optimize measurement off gap openings for critical assembly applications.
Conference Presentation
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kevin Harding, Rajesh Ramamurthy, "Optimized measurement of gaps", Proc. SPIE 10220, Dimensional Optical Metrology and Inspection for Practical Applications VI, 102200E (1 May 2017); doi: 10.1117/12.2261187; https://doi.org/10.1117/12.2261187
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KEYWORDS
Sensors

Confocal microscopy

Surface finishing

Colorimetry

Metals

Glasses

Phase shifts

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