SHEAROGRAPHY AND INTERFEROMETRY SENSOR WITH MULTIDIRECTIONAL DYNAMIC PHASE-SHIFTING AND METHOD FOR INSPECTING AND MEASURING MODES OF VIBRATION

The present invention relates to a shearography and interferometry sensor with multidirectional dynamic phase-shifting (DPSI). The present invention uses a layout with three fixed prisms, or a single fixed three-faceted optical prism having the same effect as three prisms, to simultaneously obtain t...

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Bibliographische Detailangaben
Hauptverfasser:	SANCHEZ BARRERA, Estiven, FAMPA SEABRA D'ALMEIDA, Ana Lucia, ALBERTAZZI GONÇALVES JUNIOR, Armando, DIAS FONSECA MARTINS, Fabiana, BENEDET, Mauro Eduardo, VIEIRA FANTIN, Analucia, DAMASCENO SOARES, Sergio, WILLEMANN, Daniel Pedro
Format:	Patent
Sprache:	eng ; fre ; por
Schlagworte:	MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING
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Beschreibung
Zusammenfassung:	The present invention relates to a shearography and interferometry sensor with multidirectional dynamic phase-shifting (DPSI). The present invention uses a layout with three fixed prisms, or a single fixed three-faceted optical prism having the same effect as three prisms, to simultaneously obtain three images with phase-shifting. The present invention also relates to a method for inspecting and measuring modes of vibration using said sensor. La présente invention concerne un capteur de shearographie et d'interféromégtrie avec changement de phase dynamique (DPSI) multidirectionnel. La présente invention utilise une configuration à trois prismes fixes, ou un prisme optique unique fixe à trois facettes conçu pour produire le même effet que trois prismes et ainsi obtenir simultanément trois images avec déplacement de phase. La présente invention concerne également un procédé d'inspection et de mesure de modes de vibration utilisant ledit capteur. A presente invenção trata de um sensor de shearografia e interferometria com mudança de fase dinâmica (DPSI) multidirecional. A presente invenção usa uma configuração com três prismas fixos, ou um prisma óptico trifacetado único fixo construído de forma a conseguir o mesmo efeito três prismas e assim simultaneamente obter três imagens com deslocamento de fase. A presente invenção também engloba um método de inspeção e medição de modos de vibração usando referido sensor.