Research Article
Real-time Liquid Level Measurement using A Plastic Optical Fiber (POF)
@INPROCEEDINGS{10.4108/eai.24-10-2023.2342136, author={Bakti Dwi Waluyo and Joni Safrin Rambey and Ressy Dwitias Sari}, title={Real-time Liquid Level Measurement using A Plastic Optical Fiber (POF)}, proceedings={Proceedings of the 5th International Conference on Innovation in Education, Science, and Culture, ICIESC 2023, 24 October 2023, Medan, Indonesia}, publisher={EAI}, proceedings_a={ICIESC}, year={2024}, month={1}, keywords={real-time liquid level measurement plastic optical fiber sensor u-bent fiber optic probe}, doi={10.4108/eai.24-10-2023.2342136} }- Bakti Dwi Waluyo
Joni Safrin Rambey
Ressy Dwitias Sari
Year: 2024
Real-time Liquid Level Measurement using A Plastic Optical Fiber (POF)
ICIESC
EAI
DOI: 10.4108/eai.24-10-2023.2342136
Abstract
This research presents a low-cost sensor for measuring liquid levels using plastic optical fibers (POF). The sensor reduces the scattering-based optical losses in the fiber, which increase linearly with the liquid height. A U-bent fiber probe and photodetector are used to detect the change in optical intensity. The U-bent probe serves as a test probe for measuring the liquid level. The voltage response difference of the photodetector provides liquid level measurement. This study demonstrates the sensor's responsiveness to liquid level fluctuations above 55 cm at varying temperatures. Sensitivity levels of 1.4 and 3.3 mV/mm were achieved for water level fluctuations below and above 45 cm, respectively. Furthermore, the sensor demonstrated consistently stable responsiveness over multiple cycles.