Development and application of reversible strain gage

This paper details the development of a reversible adhered strain gage for high-temperature tests, which fulfills three requirements: (1) gages must be attachable by glue without heating; (2) they must be capable of making highly accurate strain measurements; and (3) they must be usable for one-shot tests. It is shown that the characteristics of the invented reversible strain gage can result in an experimental error of under 50 microstrain for ordinary short-time tests.