Návrh vláknově optického senzoru na bázi Braggovské mřížky (FBG) pro měření tepové frekvence lidského těla.

Abstract

This Masters thesis deals with the design of optical fiber system based on fiber Bragg grating (FBG) to measure one of the vital functions, namely the heart rate of the human body. The primary areas in which a sensor could be designed and verified might be applied to a magnetic resonance environment where respiratory development is needed to be monitored such as pulse rates of the human body. The effects of magnetic field conventional methods such as electrocardiography (ECG) fail, so today, new sensor technology is being developed for this area. One of the possible solutions is optical fiber sensors, namely fiber Bragg grating, whose functional principle is explained within the theoretical part of this thesis. The next part of the Masters thesis with holds extensive research, in where the output of current knowledge and the state of the problem resides. The practical part of the thesis describes the construction of the FBG sensor and its experimental measurements, which was attended by 6 volunteers. As a reference for FBG sensor verification, a conventional three-lead ECG kit was used. For the statistical evaluation, a medically objective Bland-Altman analysis was used, which averaged over 95%. Thus, it can be stated that the experimental measurement method using the designed FBG sensor was appropriately verified.