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Title: Clip-on extensometer grip

Abstract

A self-gauging extensometer assembly for measuring axial strain of a test specimen through the wall of a high temperature furnace comprises an extensometer having a pair of telescoping arms carrying jaws that clip to the specimen at points spaced apart from each other by a predetermined gauge length. The jaws, which open parallel to the longitudinal axis of the telescoping arms, are biased closed into contact with opposite sides of the specimen by helical springs. A knife edge formed in each jaw prevents any slippage of the specimen between jaws during measurements. Because the jaws of the telescoping arms require no lateral pivoting, to open or close, the assembly is able to be clipped to a specimen through a relatively small opening in the furnace wall.

Inventors:
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
OSTI Identifier:
6533459
Application Number:
ON: DE87007207
Assignee:
Dept. of Energy
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; 42 ENGINEERING; EXTENSOMETERS; REMOTE HANDLING; USES; FURNACES; HIGH TEMPERATURE; SAMPLE HOLDERS; STRAINS; 440300* - Miscellaneous Instruments- (-1989); 420200 - Engineering- Facilities, Equipment, & Techniques

Citation Formats

Korellis, J S. Clip-on extensometer grip. United States: N. p., 1986. Web.
Korellis, J S. Clip-on extensometer grip. United States.
Korellis, J S. Tue . "Clip-on extensometer grip". United States.
@article{osti_6533459,
title = {Clip-on extensometer grip},
author = {Korellis, J S},
abstractNote = {A self-gauging extensometer assembly for measuring axial strain of a test specimen through the wall of a high temperature furnace comprises an extensometer having a pair of telescoping arms carrying jaws that clip to the specimen at points spaced apart from each other by a predetermined gauge length. The jaws, which open parallel to the longitudinal axis of the telescoping arms, are biased closed into contact with opposite sides of the specimen by helical springs. A knife edge formed in each jaw prevents any slippage of the specimen between jaws during measurements. Because the jaws of the telescoping arms require no lateral pivoting, to open or close, the assembly is able to be clipped to a specimen through a relatively small opening in the furnace wall.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {8}
}