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RESEARCH PRODUCT
The Measurement of Large Strains Using Electrical Resistance Strain Gages
A. Ajovalasitsubject
endocrine systemWheatstone bridgeMaterials scienceStrain (chemistry)business.industryMechanical EngineeringStructural engineeringlaw.inventionNonlinear systemElectrical resistance and conductanceMechanics of MaterialslawbusinessStrain gaugeGage factordescription
It is well known that in the range of large strains, the electrical resistance strain gages have a nonlinear behavior, that is the variation of electrical resistance is a nonlinear function of the strain applied to the strain gage, which means that the gage factor K is not constant. Also, the Wheatstone bridge has a nonlinear behavior at large strains. Usually the two nonlinearities have opposite effects, therefore the overall nonlinearity decreases. This article presents an overview of the behavior of strain gages subject to large strains and of the corrections to account for nonlinearities of both the strain gage and the Wheatstone bridge.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-06-06 | Experimental Techniques |