THE EVALUATION OF A STRAIN GAGE HAVING LONG-TIME STABILITY CHARACTERISTICS

A STANDARDIZING STRAIN GAGE THAT MEETS THE REQUIREMENTS FOR LONG-TIME STABILITY OF STRAIN MEASUREMENTS IS DESCRIBED. STATISTICAL ANALYSES OF THE STRAIN CALIBRATION RESULTS TAKEN OVER A PERIOD OF 13 MONTHS SHOWED NO SIGNIFICANT DIFFERENCES BETWEEN SUCCESSIVE CALIBRATIONS AT A 5-PERCENT SIGNIFICANCE LEVEL. FROM THE RESULTS OF THE STRAIN CALIBRATIONS OF 134 GAGES, THE RESISTANCE-DEFORMATION CHARACTERISTIC HAD A MEAN OF 120.31 OHMS/IN. WITH A COEFFICIENT OF VARIATION OF 1.43%. EVALUATION TESTS USING 6 X 12 IN. CONCRETE CYLINDERS COMPARED THE STRAINS MEASURED BY THE STANDARDIZING GAGE TO THOSE MEASURED BY THE BERRY GAGE. STATISTICAL ANALYSES OF THESE RESULTS SHOWED EQUIVALENT ACCURACY OF STRAIN MEASURED BY THE STANDARDIZING STRAIN GAGE AT COMPARABLE PRECISION. /AUTHOR/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00144851
• Supplemental Notes:
  • Vol 9, No 9, PP 401-406
• Authors:
  • Berwanger, C
• Publication Date: 1969-9

Media Info

• Serial:
  • Experimental Mechanics
  • Publisher: Society for Experimental Mechanics
  • ISSN: 0014-4851

Subject/Index Terms

• TRT Terms: Accuracy; Alternatives analysis; Calibration; Deformation; Evaluation; Stability (Mechanics); Statistical analysis; Strain gages; Strain measurement
• Uncontrolled Terms: Characteristics
• Old TRIS Terms: Resistance
• Subject Areas: Data and Information Technology; Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00216887
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 12 1970 12:00AM