Abstract
The purpose of this paper is to document a measurement system analysis (MSA) for a stereo digital image correlation (DIC) system such that ISO 9001 specifications are met. Many of the prior uncertainty or error studies on DIC have focused on the numerical calculations alone or only specific stages of the metrological process. Thus, there is a need to conduct an MSA to understand the various sources of uncertainty introduced over the entire process and their individual contributions on the final results. The focus of the present MSA was for the practicing engineer in an industrial environment/laboratory. Therefore, the primary sources of uncertainty investigated in this study were the common adjustable parameters that are available to the end user during the system setup and operation. The interdependence of all the factors, both controllable and concealed, elucidated in the literature is acknowledged and conveyed. The measurand of interest was displacement and the particular software utilized to compute the displacements was Vic-3D™ (version 2012) from Correlated Solutions, Inc. The procedure outlined in ISO 98-3 “Guide to the expression of uncertainty in measurement” (GUM) was followed.
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Notes
- 1.
Single-Axis Translation Stage, PT1, Thorlabs, Inc., Newton, NJ, USA.
- 2.
GRAS-50S5M-C, Point Grey Research, Inc., Richmond, BC, Canada.
- 3.
Xenoplan 1.4/23-0902, Schneider-Kreuznach. Bad Kreuznach, Rhineland-Palatinate, Germany.
- 4.
Model 900445, Visual Instrumentation Corporation, Lancaster, CA, USA.
- 5.
MATLAB®, version 8.2.0.701, R2013b, The MathWorks, Inc., Natick, MA, USA.
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Acknowledgements
The authors would like to thank technicians Adam Baker, Michael Bledsoe, Bryan Root, and Michael Stevens for their assistance in the optical setup and acquisition of the digital images.
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Kelleher, J.E., Gloeckner, P.J. (2017). An Applications-Oriented Measurement System Analysis of 3D Digital Image Correlation. In: Yoshida, S., Lamberti, L., Sciammarella, C. (eds) Advancement of Optical Methods in Experimental Mechanics, Volume 3. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-41600-7_15
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