A new optical pressure sensor interrogated by speckles pattern for oil industry

Vinicius Martinelli Sperandio; Maria José Pontes; Anselmo Frizera Neto; Lucas Gonçalves Webster

doi:10.1117/12.2185464

28 September 2015 A new optical pressure sensor interrogated by speckles pattern for oil industry

Vinicius Martinelli Sperandio, Maria José Pontes, Anselmo Frizera Neto, Lucas Gonçalves Webster

Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96347W (2015) https://doi.org/10.1117/12.2185464
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil

Abstract

A new optical pressure control concept in petroleum industry based on laser speckle analysis, with inherent safety light, is investigated in this work. A plastic optical fiber (POF) utilized to instrument a conventional manometer enabled pressure monitoring of a system that is interrogated by speckle photography technique. Specklegrams were imaged on a CCD camera and then analyzed, after Mathematical Morphology Filter, regarding its movement. Tests demonstrated that the speckle pattern movement is radial towards the center of pressure and accordingly reverse during depressurization within 5% maximum error.

Citation Download Citation

Vinicius Martinelli Sperandio, Maria José Pontes, Anselmo Frizera Neto, and Lucas Gonçalves Webster "A new optical pressure sensor interrogated by speckles pattern for oil industry", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96347W (28 September 2015); https://doi.org/10.1117/12.2185464

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