Abstract
In this paper, a polymer optical fiber (POF) is applied for temperature measuring of water solution using a light source of 650nm. The aim is to analyse the impact of temperature variations on the output of POF sensor device in terms of output power and sensitivity. From the study, the POF sensor shows a linear trend when the temperature is increased from 30°C to 80°C with the sensitivity of the polymer optical fiber for output power to the temperature are 0.00973 dBm/°C or 0.14797 nW/°C, for optical characterization and 0.0011 V/°C for electrical characterization. The integration of the Internet of Things to the system helps the user to monitor the temperature of various spaces anywhere at any time. The sensed values are controlled by Arduino Uno R3 and then sent to Blynk to provide wireless monitoring by the user.
Highlights
The most commonly evaluated physical parameter in the process industry or in controlled environments is temperature
The input power of the red light-emitting diode (LED) of wavelength 650 nm is connected to a polymer optical fiber (POF) sensor, while the other end is connected to optical power meter for detection
Polymer optical fiber cable with 1 meter length was used for the preparation of the fiber optic sensor
Summary
The most commonly evaluated physical parameter in the process industry or in controlled environments is temperature. Temperature sensor offers great benefits to the user to observe and control the real-time temperature of the surrounding [1,2,3,4] Up to this time, sensors used to evaluate temperatures such as thermostats, thermocouples, thermometers and temperature resistance detectors are based on electronic methods [5]. Sensors used to evaluate temperatures such as thermostats, thermocouples, thermometers and temperature resistance detectors are based on electronic methods [5] These sensors are broadly employed in many fields including the industry, medical, modern agriculture, food and beverage, and home appliances [6,7,8]. To the best of our knowledge, integrating the fiber optic sensor to the IoT platform is still new, and the feasibility of IoT technology is expected to boost the growth of fiber optic sensor
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