6533b850fe1ef96bd12a8594
RESEARCH PRODUCT
Phase shifting photoelasticity in white light
Augusto AjovalasitGiovanni PetrucciMichele Scafidisubject
PhotoelasticityMaterials scienceBirefringencebusiness.industryMechanical EngineeringExperimental mechanics digital photoelasticity phase shifting RGB methodImage processingWaveplateAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsDigital imageSettore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineOpticsDispersion (optics)RGB color modelMonochromatic colorElectrical and Electronic EngineeringbusinessSettore ING-IND/15 - Disegno E Metodi Dell'Ingegneria Industrialedescription
The availability of image acquisition systems has led to the development of digital photoelasticity both in monochromatic and white light. In particular white light has been used mainly with the following methods: Spectral Content Analysis, RGB photoelasticity and phase shifting photoelasticity. Phase shifting photoelasticity in the colour domain has been used effectively for the determination of the isoclinic parameter in order to reduce the influence of the isochromatic fringes. The method has been also proposed for the determination of the isochromatic fringe order. This paper concerns the general characteristics of phase shifting photoelasticity in the colour domain. Special attention is drawn towards the influence of spectral content of the light source, the spectral response of the colour camera filters, the dispersion of the birefringence and the error of quarter wave plates.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-05-01 |