Attainable accuracy of strain measurements with thum-sevenson-weiss mechanical-inductive strain gages |
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Authors: | Dieter Radaj |
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Affiliation: | 1. Forschungsgruppe für Spannung und Konstruktion at the Institut für landtechnische Grundlagenforschung of the Forschungsanstalt für landwirtschaft Braunschweig-V?lkenrode, Germany
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Abstract: | This paper determines the accuracy that can be attained with the Thum-Svenson-Weiss mechanical-inductive strain-measuring method. After stating advantages and disadvantages of this measuring method, the strain gage, the electrical parts and the calibration equipment are described. The determination of accuracy is based on the laws of statistics considering all the errors as distributed completely at random. The behavior of the electrical parts, of the mechanical parts, of the strain gage and of the calibration equipment are separately investigated. It is evident from these investigations that the strain measurement with the Thum-Svenson-Weiss mechanical-inductive strain gages is one of the most accurate strain-measuring methods to date. |
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