A STANDARDIZING STRAIN GAGE FOR MEASUREMENTS REQUIRING LONG-TIME STABILITY
A NEW TYPE OF UNBONDED ELASTIC WIRE STRAIN GAGE IS DESCRIBED. STRAINS ARE DETERMINED BY MEASURING THE CHANGES IN ELECTRICAL RESISTANCE OF THE ELASTIC WIRE WITH CONVENTIONAL STRAIN BRIDGES, BUT LONG-TIME STABILITY IS ACHIEVED IN A NOVEL MANNER BY REFERRING ALL STRAIN MEASUREMENTS TO A BUILT-IN INVAR LENGTH STANDARD. THE PERFORMANCE OF ONE STANDARDIZING STRAIN GAGE WAS EVALUATED BY COMPARISON WITH A 10-IN. WHITTEMORE GAGE. THE STANDARDIZING GAGE CAN BE SURFACE-MOUNTED OR EMBEDDED IN CONCRETE. /AUTHOR/
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Supplemental Notes:
- No 176, pp 1-8, 6 FIG Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
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Authors:
- Monfore, G E
- Publication Date: 1958
Media Info
- Media Type: Digital/other
- Pagination: 8p
- Monograph Title: Instrumentation for measuring characteristics of concrete
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Serial:
- Highway Research Board Bulletin
- Issue Number: 176
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Elasticity (Mechanics); Electrical equipment; Resistance (Electricity); Stability (Mechanics); Strain gages; Wire
- Old TRIS Terms: Bridges /electric/
- Subject Areas: Highways; Materials;
Filing Info
- Accession Number: 00213253
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Sep 23 1994 12:00AM