Cure and stress monitoring of composite containers using optical fibers

Pekka Suopajaervi; Veijo Lyori; Seppo M. Nissilae; Harri K. Kopola; Reijo Johansson

doi:10.1117/12.221104

21 September 1995 Cure and stress monitoring of composite containers using optical fibers

Pekka Suopajaervi, Veijo Lyori, Seppo M. Nissilae, Harri K. Kopola, Reijo Johansson

Proceedings Volume 2509, Smart Structures: Optical Instrumentation and Sensing Systems; (1995) https://doi.org/10.1117/12.221104
Event: European Symposium on Optics for Environmental and Public Safety, 1995, Munich, Germany

Abstract

The monitoring of fuel tanks and toxic liquid containers with embedded long optical fibers makes it possible to determine their condition and to detect probable environmental risks. We present here measurements of microbending loss in long, single-mode telecommunication fibers installed inside the walls of composite containers during the manufacturing process. The measurements were performed by the optical through power technique and using a commercial optical time domain reflectometer. The measurement data indicate that the optical sensing fibers can detect the end of the curing process in the composite and the occurrence of external loading likely to damage the structure.

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Pekka Suopajaervi, Veijo Lyori, Seppo M. Nissilae, Harri K. Kopola, and Reijo Johansson "Cure and stress monitoring of composite containers using optical fibers", Proc. SPIE 2509, Smart Structures: Optical Instrumentation and Sensing Systems, (21 September 1995); https://doi.org/10.1117/12.221104

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KEYWORDS

Signal attenuation

Composites

Optical fibers

Manufacturing

Optics manufacturing

Structured optical fibers

Glasses

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