Characteristic Analysis Light Intensity Sensor Based on Plastic Optical Fiber at Various Configuration

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Abstract

This research discusses the light intensity sensor based on plastic optical fiber. This light intensity sensor is made of plastic optical fiber consisting of two types, namely which is cladding and without cladding. Plastic optical fiber used multi-mode step-index type made of polymethyl metacrylate (PMMA). The infrared LED emits light into the optical fiber of the plastic and is subsequently received by the phototransistor to be converted to an electric voltage. The sensor configuration is made with three models: straight configuration, U configuration and gamma configuration with cladding and without cladding. The measured light source uses a 30 Watt high power LED with a light intensity of 0 to 10 Klux. The measured light intensity will affect the propagation of light inside the optical fiber sensor. The greater the intensity of the measured light, the greater the output voltage that is read on the computer. The results showed that the best optical fiber sensor characteristics were obtained in U configuration. Sensors with U-configuration without cladding had the best sensitivity and resolution values of 0.0307 volts/Klux and 0.0326 Klux. The advantages of this measuring light intensity based on the plastic optical fiber instrument are simple, easy-to-make operational systems, low cost, high sensitivity and resolution.

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APA

Arifin, A., Lusiana, Yunus, M., & Dewang, S. (2018). Characteristic Analysis Light Intensity Sensor Based on Plastic Optical Fiber at Various Configuration. In Journal of Physics: Conference Series (Vol. 979). Institute of Physics Publishing. https://doi.org/10.1088/1742-6596/979/1/012085

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