Investigation of strain gages for use at cryogenic temperatures |
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Authors: | Albert Kaufman |
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Affiliation: | 1. Lewis Research Center, National Aeronautic and Space Administration, Cleveland, Ohio
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Abstract: | Strain sensitivity and resistance changes in Advance, Karma, Budd Alloy, Nichrome V, and stabilized Armour D foil gages, and Nichrome V-platinum temperature-compensated gages were evaluated at cryogenic temperatures. The more promising gage types, as determined from these studies, were tested to strain levels up to 11,000 μin./in. with tensile specimens. The other performance characteristics that were investigated included zero drift, creep, hysteresis, linearity and gage element size effects. A mounting method developed for foil gages to be used at cryogenic temperatures is described. |
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