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@article{197383,
        author = {Vivek P Kude and Sampada V Bettigeri and Yash V Kude and Shubhangi B Patil},
        title = {Automotive Radiator Temperature Analysis Using Optical Fiber Sensor},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {12},
        number = {11},
        pages = {7138-7142},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=197383},
        abstract = {In this work, an optical fiber-based temperature sensing system is developed for monitoring radiator coolant temperature in automotive applications. The system uses a multimode tapered optical fiber sensor operating on the principle of evanescent wave interaction and refractive index variation. As the coolant temperature changes, its refractive index decreases, which affects the evanescent field around the fiber and results in variation of transmitted light intensity. This variation is converted into an electrical signal using an optical detector and further processed by a microcontroller to display temperature on an LCD. Experimental results show that as the temperature increases from 35.5°C to 105.5°C, the output voltage increases from 2.4 V to 3.8 V, indicating a stable and nearly linear response. The refractive index measurements using a refractometer also confirm a decreasing trend with temperature. The proposed system demonstrates good sensitivity, reliability, and immunity to electromagnetic interference. Hence, it can be effectively used as an alternative to conventional electronic sensors for temperature monitoring in automotive systems.},
        keywords = {},
        month = {April},
        }