16 January 1988 Modular Holography For Use In Industry
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Proceedings Volume 0952, Laser Technologies in Industry; (1988) https://doi.org/10.1117/12.968834
Event: Laser Technologies in Industry, 1988, Porto, Portugal
Abstract
A new system of holography is presented. This modular testing equipment fulfils the performance requirements for industrial measuring equipment. A holographic camera-head module with the approximate dimensions of a television camera is installed close to or actually on the object to be tested. For holography using a continous wave laser it is necessary only to secure the object to a base-plate mounted on vibration insulators. This is not necessary if pulse holography is used. Because of its small size, the measuring head can also be attached directly to the test object. This largely eliminates the effects of movements of the whole body of the objects. The technical realization of modular holography was made possible by the use of glass fibres. A rigid connection between the laser and the measuring apparatus is no longer necessary. The necessary light for the recording of the hologram is provided by the laser-base module and fed to the measuring head via a glass fibre cable. The hologram recorded by the measuring head is transmitted directly by means of a television camera to the computer-analyzer module, where it is evaluated and presented in user-friendly form. An example from industry is taken to demonstrate the use of the modular holography system.
© (1988) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Ettemeyer, J. Schorner, H. Rottenkolber, E. Obermeier, "Modular Holography For Use In Industry", Proc. SPIE 0952, Laser Technologies in Industry, (16 January 1988); doi: 10.1117/12.968834; https://doi.org/10.1117/12.968834
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