Grating (Moiré) Microinterferometric Displacement/Strain Sensor with Polarization Phase Shift

• DOI: 10.20944/preprints202404.1354.v1
• Publication Date: 2024-05-07T09:40:07Z
• Authors: Leszek Sałbut; Dariusz Łukaszewski; Aleksandra Piekarska
• Keywords: Moiré pattern

Grating (moiré) interferometry is one of the well-known methods for full-field in-plane displacement and strain measurement. There are many design solutions grating interferometers, including systems with a microinterferometric waveguide head. This article proposes modification to conventional interferometer head, enabling implementation polarization fringe phase shift automatic pattern analysis. The presents both theoretical consideration proposed solution its experimental verification, along concept displacement/strain sensor using described