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RESEARCH PRODUCT
The influence of the quarter wave plates in automated photoelasticity
Augusto AjovalasitSandro BaroneBernardo ZuccarelloGiovanni Petruccisubject
PhysicsPhotoelasticitybusiness.industryMechanical EngineeringWaveplateAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic Materialssymbols.namesakeWavelengthDigital imageFourier transformOpticsData acquisitionsymbolsElectrical and Electronic EngineeringbusinessCircular polarizationQuarter (Canadian coin)description
During the last decades, several methods have been proposed to automate photoelastic analyses. Some procedures are based on the circularly polarised light by using quarter wave plates. However, quarter wave plates are typically matched for a specific wavelength, and an error is introduced at different wavelengths. The error of quarter wave plates affects the measurement of isochromatic and isoclinic data. In this paper, the influence of the errors of quarter wave plates in some of the most common automated photoelastic methods is reviewed. The errors in the photoelastic data are given and the procedures to reduce, or eliminate, them are also suggested.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-07-01 |