13 August 1998 Curvature measurements
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Proceedings Volume 3555, Optical and Fiber Optic Sensor Systems; (1998); doi: 10.1117/12.318211
Event: Photonics China '98, 1998, Beijing, China
Abstract
New developments are reported regarding the fiberoptic curvature gauge proposed recently. Advantages in measuring curvature, rather than strain, are presented. In contrast to direct sensor of strain where reliable structural strain transmission onto the sensor must be assured, the curvature gauge is unaffected by mechanical properties of intermediate objects such as the cushioning effect of the fiber protective coating, adhesives, resin, etc. Furthermore, curvatures can be measured anywhere in the structure's cross section, including along the neutral axis where there is no strain in bending. This simplifies the process of embedding sensor and the interpretation of the signals obtained. Curvature measurements are particularly suitable for thinner structures where extreme resolution in measuring strain would be required.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alexandar Djordjevich, YuZhu He, "Curvature measurements", Proc. SPIE 3555, Optical and Fiber Optic Sensor Systems, (13 August 1998); doi: 10.1117/12.318211; https://doi.org/10.1117/12.318211
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KEYWORDS
Sensors

Structured optical fibers

Optical fibers

Coating

Fiber coatings

Fiber optics sensors

Signal processing

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