Endoscopic evaluation of cilia motion on the respiratory epithelial by laser reflectometry utilizing optical fibers

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21460%2F12%3A00209959" target="_blank" >RIV/68407700:21460/12:00209959 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Endoscopic evaluation of cilia motion on the respiratory epithelial by laser reflectometry utilizing optical fibers
Original language description
The oscillation frequency of the respiratory epithelium cilia (about 20Hz) is extremely sensitive to many factors (dust, gases, infection). This paper presents a laboratory method of laser reflectometry using standard optical fibers for lighting and collecting backscattered laser signal, which can be used due to their geometry in endoscope examination. The movement of cilia is modeled by the mirror with controlled oscillation. The light beam from a pigtailed semiconductor laser operating at wavelength of 640nm is coupled to the SM fiber and the reflected intensity is captured by the GI MM fiber. The detected backscattered signal carrying information about the frequency of the oscillation mirror is evaluated using fast Fourier transform (FFT). Measurements for three different surfaces were done and their analysis compared with the set frequency of mirror oscillations. The results give us information about minimum reflected intensity which can be processed by this method as well as the a
Czech name
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Czech description
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Project
<a href="/en/project/EE.2.3.20.0092" target="_blank" >EE.2.3.20.0092: BIO-XUV Research Team Advancement at FBME CTU</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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