A Fiber-Optic Microbending Temperature Sensor |
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Authors: | I V Denisov V A Sedov N A Rybal'chenko |
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Affiliation: | (1) Nevel'skii State Marine University, ul. Verkhneportovaya 50A, Vladivostok, 690059, Russia |
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Abstract: | A fiber-optic amplitude sensor based on the effect of microbending-caused upsetting of total internal reflection and intended for temperature monitoring is described. A measuring-system prototype was developed for investigating the sensor characteristics. The measured sensor characteristics show that a sensor with alcohol as the working fluid has a maximum sensitivity of 1.9 × 10?2°C?1. The range of linear variation of its normalized optical output signal was 0.829. The temperature range was 42.5°C, the maximum temperature being 74.5°C. It is shown that several sensors of this type can be integrated in fiber-optic lines to be used in distributed fiber-optic measuring networks. |
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