Actas de congresos
Advances In Real-time Holographic Interferometry For The Measurement Of Vibrations And Deformations
Registro en:
Proceedings Of Spie - The International Society For Optical Engineering. , v. 3411, n. , p. 138 - 147, 1998.
0277786X
10.1117/12.307694
2-s2.0-0032402460
Autor
Frejlich J.
Garcia P.M.
Freschi A.A.
Institución
Resumen
We describe the latest improvements in holographic interferometry that enable the realtime measurement of vibrational modes and static deformations in surfaces using low power laser illumination and a photorefractive Bi12TiO20 crystal as the recording medium. An efficient setup has been developed where the most critical elements have been optimized: Target illumination and backscattered light collection, distribution of light between the object and reference beams, and stabilization system operation. Experimental results for vibration and deformatiom measurement are reported. 3411
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