Strain-Measurement Setup (IMAGE)

Optica

Strain-Measurement Setup

Caption

Researchers used a tensile machine to pull a metal specimen with a ceramic thermal barrier coating sprayed on its surface. With a polariscope, they could measure changes in refractive index resulting from this applied strain. Some of the components of the GHz polariscope are seen on either side of the tensile machine.

Credit

Peter J. Schemmel, Heriot-Watt University

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