Measurement of transient out-of-plane displacement gradients in plates using double-pulsed subtraction TV shearography
| Autor: | Guillermo H. Kaufmann, José L. Fernández, Jesus Blanco-Garcia, Ángel F. Doval, Carlos Perez-Lopez, Antonio Fernández, A. Dávila |
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| Jazyk: | angličtina |
| Rok vydání: | 2000 |
| Předmět: |
Physics
Applied physics business.industry Optical engineering General Engineering Atomic and Molecular Physics and Optics Displacement (vector) 3311.11 Instrumentos Opticos 2209.07 Holografía Speckle pattern symbols.namesake Optics Fourier transform 2201.11 Vibraciones Shearography Astronomical interferometer symbols Transient (oscillation) business |
| Zdroj: | Investigo. Repositorio Institucional de la Universidade de Vigo Universidade de Vigo (UVigo) |
| ISSN: | 0091-3286 |
| DOI: | 10.1117/1.1305260 |
| Popis: | Jose L. Fernandez Universidad de Vigo Department of Applied Physics Escuela Tecnica Superior de Ingenieros Industriales Campus Universitario Lagoas-Marcosende E-36200 Vigo, Spain Abstract. We report a technique for the measurement of transient outof-plane displacement gradients in plane objects by double-pulsed subtraction TV shearography. The fringe patterns are automatically and quantitatively analyzed by the Fourier transform method. A novel optical setup based on the separation and further recombination of illumination beams is demonstrated for the generation of carrier fringes. The principle of the proposed technique is theoretically described, and its immunity to environmental disturbances is discussed. Experimental results obtained with a metallic plate excited by the impact of a piezoelectric transducer are presented. © 2000 Society of Photo-Optical Instrumentation Engineers. [S0091-3286(00)02908-1] |
| Databáze: | OpenAIRE |
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