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Optical Fiber Liquid-Level Sensing Based on Self-Heated Optical Fiber and DPP-BOTDA

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A liquid-level sensor with a large range of 20cm and a resolution of 1cm is demonstrated, where the principle is to measure the temperature abruption position based on DPP-BOTDA with a self-heated high attenuation fiber.

© 2016 Optical Society of America

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