title: ÐÐ¾ÑÑÑÐ¾ÐµÐ½Ð¸Ðµ Ð²Ð¾Ð»Ð¾ÐºÐ¾Ð½Ð½Ð¾-Ð¾Ð¿ÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð´Ð°ÑÑÐ¸ÐºÐ¾Ð² Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¿Ð¾Ð»Ð¸Ð¼ÐµÑÐ½ÑÑ Ð¾Ð¿ÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð²Ð¾Ð»Ð¾ÐºÐ¾Ð½
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Construction of fiber-optic sensors based on polymer optical fibers
Creators: name: Ð¢Ð°ÑÐ°ÑÑÑÐ¸ÐºÐ¾Ð², Ð¡ÐµÑÐ³ÐµÐ¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: Ð¿Ð¾Ð»Ð¸Ð¼ÐµÑÐ½Ð¾Ðµ Ð¾Ð¿ÑÐ¸ÑÐµÑÐºÐ¾Ðµ Ð²Ð¾Ð»Ð¾ÐºÐ½Ð¾
Ð²Ð¾Ð»Ð¾ÐºÐ¾Ð½Ð½Ð¾-Ð¾Ð¿ÑÐ¸ÑÐµÑÐºÐ¸Ð¹ Ð´Ð°ÑÑÐ¸Ðº
Ð¿ÑÐ»ÑÑÐ¾Ð²Ð°Ñ Ð²Ð¾Ð»Ð½Ð°
ÑÐ¼Ð°ÑÑÑÐ¾Ð½
Ð²Ð¾Ð»Ð¾ÐºÐ¾Ð½Ð½Ð¾-Ð¾Ð¿ÑÐ¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ°Ð·Ð²ÐµÑÐ²Ð¸ÑÐµÐ»Ñ
polymer optical fiber
fiber optic sensor
pulse wave
smartphone
fiber optic splitter

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description: The subject of the graduate qualification work is a measuring system based on a polymer optical fiber interrogated by a smartphone to measure a person's pulse wave. The given work is devoted to creating a cheap fiberâoptic sensor based on polymer fiber for recording a pulse wave signal and interrogation it using a smartphoneIn the course of the work, two sensitive elements were created that modulate the intensity of reflected radiation. With their help, pulse waves were measured on a small sample of subjects. A visual comparison of pulse wave signals and a quantitative comparison of their characteristics was carried out using the following metrics: signal-to-noise ratio, repeatability of wave intervals and repeatability of the decomposition of pulse waves into six Gaussian functions. It was shown that, firstly, the readings of the first sensing element are more stable than the second; secondly, the pulse wave signal-noise when interrogating sensors using a smartphone is several times higher than when interrogating using a photodetector with an ADC; thirdly, the quality of recorded pulse waves using the first sensor element interrogated by a smartphone is not much inferior to that of a previously known expensive system with a fiber-optic Fabry-Perot interferometer with a spectral interrogation. The results of the work can be used in medicine to create inexpensive wearable personal health monitoring systems.