Development of Measuring Instruments for Lung Vital Capacity and Human Respiratory Rate Based on Fiber Optic Sensors

Authors

  • Mega Roza Lia Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Padang 25163, Indonesia
  • Harmadi Harmadi Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Padang 25163, Indonesia
  • Afdhal Muttaqin Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Padang 25163, Indonesia

DOI:

https://doi.org/10.25077/jif.15.1.39-47.2023

Keywords:

fiber optic , laser diode OPT101 , vital lung capacity , respiratory rate

Abstract

The development of measuring instruments for vital lung capacity and human respiratory rate based on the fiber-optic sensor has a system consisting of a laser diode as a light source, optical fiber as a waveguide, and OPT101 as a photodetector. This research consists of three stages: hardware design, software design, and data analysis. Each component used is tested and then tested on the entire system to determine each component's performance when used together. In the software system, the analog signal in the form of voltage from OPT101 is converted into an ADC value by an analog-to-digital converter. Based on the ADC value obtained, the threshold value is determined as the threshold for reading the respiratory rate. The number of ADC values ​​during the measurement of vital lung capacity is then converted to volume. Testing of measuring instruments is carried out by comparing the results of instruments developed with a standard medical measuring device. The results of the tests and analyses that have been carried out have obtained an accuracy value of 92.62% for the measurement of vital lung capacity, 95.14% for the measurement of respiratory rate, and 92.62% for the measurement of the respiratory rate of variations in activity.

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Published

2022-12-30

How to Cite

Roza Lia, M., Harmadi, H., & Muttaqin, A. . (2022). Development of Measuring Instruments for Lung Vital Capacity and Human Respiratory Rate Based on Fiber Optic Sensors. JURNAL ILMU FISIKA, 15(1), 39–47. https://doi.org/10.25077/jif.15.1.39-47.2023

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Research Article

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