19 August 2014 Proximity sensors based on ball-lensed optical fibers
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Proceedings Volume 9291, 13th International Scientific Conference on Optical Sensors and Electronic Sensors; 92910H (2014) https://doi.org/10.1117/12.2071567
Event: 13th International Scientific Conference on Optical Sensors and Electronic Sensors, 2014, Lodz, Poland
Abstract
Reflective sensors involving optical fibers are very popular due to low cost and EMI insensitive. In this paper, a new concept is described regarding proximity sensors based on ball-lensed optical fibers (PSBBOF). Two types of sensors are presented: (1) Type A with one transmitting and four receiving optical fibers and (2) Type B with one transmitting and eight receiving optical fibers. In both PSBBOF types ball-lensed optical fibers are used as a receiving line. Sensitive of both PSBBOF is compared to sensitive of sensors with the same configurations, but involving cleaved optical fibers. All developed sensors were tested at two wavelengths: 850 nm and 1300 nm. As a refractive surface the silicon wafer was used.
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Bartlomiej Guzowski, Marek Cywinski, Mateusz Lakomski, "Proximity sensors based on ball-lensed optical fibers", Proc. SPIE 9291, 13th International Scientific Conference on Optical Sensors and Electronic Sensors, 92910H (19 August 2014); doi: 10.1117/12.2071567; https://doi.org/10.1117/12.2071567
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