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Title: Flaw detection and evaluation

Abstract

The invention provides a method of and apparatus for optically inspecting nuclear fuel pellets for surface flaws. The inspection system includes a prism and lens arrangement for scanning the surface of each pellet as the same is rotated. The resulting scan produces data indicative of the extent and shape of each flaw which is employed to generate a flaw quality index for each detected flaw. The flaw quality indexes from all flaws are summed and compared with an acceptable surface quality index. The result of the comparison is utilized to control the acceptance or rejection of the pellet.

Inventors:
;
Issue Date:
Research Org.:
Hanford Engineering Development Lab., Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
864519
Patent Number(s):
4377238
Application Number:
08/27/1980
Assignee:
The United States of America as represented by the United States Department of Energy (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
EY-76-C-14-2170
Resource Type:
Patent
Resource Relation:
Patent File Date: 1980 Aug 27
Country of Publication:
United States
Language:
English
Subject:
flaw; detection; evaluation; provides; method; apparatus; optically; inspecting; nuclear; fuel; pellets; surface; flaws; inspection; prism; lens; arrangement; scanning; pellet; rotated; resulting; scan; produces; data; indicative; extent; shape; employed; generate; quality; index; detected; indexes; summed; compared; acceptable; result; comparison; utilized; control; acceptance; rejection; fuel pellet; fuel pellets; nuclear fuel; flaw detection; surface flaws; surface quality; data indicative; table surface; inspecting nuclear; lens arrangement; /209/250/348/356/376/702/

Citation Formats

Wilks, Robert S., and Sturges, Jr., Robert H. Flaw detection and evaluation. United States: N. p., 1983. Web.
Wilks, Robert S., & Sturges, Jr., Robert H. Flaw detection and evaluation. United States.
Wilks, Robert S., and Sturges, Jr., Robert H. Sat . "Flaw detection and evaluation". United States. https://www.osti.gov/servlets/purl/864519.
@article{osti_864519,
title = {Flaw detection and evaluation},
author = {Wilks, Robert S. and Sturges, Jr., Robert H.},
abstractNote = {The invention provides a method of and apparatus for optically inspecting nuclear fuel pellets for surface flaws. The inspection system includes a prism and lens arrangement for scanning the surface of each pellet as the same is rotated. The resulting scan produces data indicative of the extent and shape of each flaw which is employed to generate a flaw quality index for each detected flaw. The flaw quality indexes from all flaws are summed and compared with an acceptable surface quality index. The result of the comparison is utilized to control the acceptance or rejection of the pellet.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {1}
}