ISSN: 0090-3973
Page Count: 7

Temperature Effect on Strain Measurement by Using Weldable Electrical Resistance Strain Gages

Gomes, PTV
Nuclear Technology Research Center-CDTN/CNEN,

Maia, NS
Nuclear Technology Research Center-CDTN/CNEN,

Mansur, TR
Nuclear Technology Research Center-CDTN/CNEN,

Palma, ES
Pontifical Catholic University of Minas Gerais-PUC Minas,

(Received 9 July 2002; accepted 23 April 2003)

Abstract

Thermal output from two different strain gage types was analyzed over a temperature range from 20–500°C. The influence of applied loads was also examined. The strain gages were attached to the specimens in three different configurations. Thermal output was efficiently compensated for using a quarter-bridge configuration. Relative large errors were found using half-bridge configurations. The obtained thermal output values, with and without application of load, are discussed.

Keywords:
strain gages, thermal output, uncertainty, strain measurement

Paper ID: JTE12366J
DOI: 10.1520/JTE12366J
ASTM International is a member of CrossRef.