ASTM-E2208 2002

$40.63

E2208-02 Standard Guide for Evaluating Non-Contacting Optical Strain Measurement Systems

Published By	Publication Date	Number of Pages
ASTM	2002	7

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Categories: 17.180.30 - Optical measuring instruments, ASTM

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Description

1.1 The purpose of this document is to assist potential users in understanding the issues related to the accuracy of non-contacting strain measurement systems and to provide a common framework for quantitative comparison of optical systems. The output from a non-contacting optical strain and deformation measurement system is generally divided into optical data and image analysis data. Optical data contains information related to specimen strains and the image analysis process converts the encoded optical information into strain data. The enclosed document describes potential sources of error in the strain data and describes general methods for quantifying the error and estimating the accuracy of the measurements when applying non-contacting methods to the study of events for which the optical integration time is much smaller than the inverse of the maximum temporal frequency in the encoded data (that is, events that can be regarded as static during the integration time). A brief application of the approach, along with specific examples defining the various terms, is given in the Appendix.

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PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Description of General Optical Non-Contacting Strain Measurement Systems FIG. 1
3	Error Sources FIG. 2
4	System Evaluation Process
5	X1. EXAMPLE X1.1 X1.2 X1.3 X1.4 X1.5 X1.6 X1.7 FIG. X1.1
6	X1.8 FIG. X1.2 FIG. X1.3 FIG. X1.4
7	FIG. X1.5 FIG. X1.6

Additional information

Standard Title	E2208-02 Standard Guide for Evaluating Non-Contacting Optical Strain Measurement Systems
Published Code	ASTM
Publication Date	2002
Pages Count	7
ICS Codes	17.180.30 - Optical measuring instruments

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ASTM-E2208 2002

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