Determination and optimization of spatial samples for distributed measurements.

Technical Report · Fri Oct 01 04:00:00 EDT 2010

DOI:https://doi.org/10.2172/993322· OSTI ID:993322

Huo, Xiaoming ^[1]; Tran, Hy D; Shilling, Katherine Meghan; Kim, Heeyong ^[1]

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1. Georgia Institute of Technology, Atlanta, GA

There are no accepted standards for determining how many measurements to take during part inspection or where to take them, or for assessing confidence in the evaluation of acceptance based on these measurements. The goal of this work was to develop a standard method for determining the number of measurements, together with the spatial distribution of measurements and the associated risks for false acceptance and false rejection. Two paths have been taken to create a standard method for selecting sampling points. A wavelet-based model has been developed to select measurement points and to determine confidence in the measurement after the points are taken. An adaptive sampling strategy has been studied to determine implementation feasibility on commercial measurement equipment. Results using both real and simulated data are presented for each of the paths.

• Research Organization: Sandia National Laboratories
• Sponsoring Organization: USDOE
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 993322
• Report Number(s): SAND2010-7333
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
42 ENGINEERING
EVALUATION
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MEASURING METHODS
OPTIMIZATION
QUALITY ASSURANCE
SAMPLING
STANDARDIZATION