Bragg grating implementation of fibre optic inclinometer

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F17%3APU124514" target="_blank" >RIV/00216305:26220/17:PU124514 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Bragg grating implementation of fibre optic inclinometer

Popis výsledku v původním jazyce

The paper shows the solution of the temperature independent fiber optic Bragg gratings based inclinometer. The principle of the inclinometer uses four sensing gratings situated in the medians of the regular tetrahedron. There is the weight placed in the tetrahedron’s center of gravity, connected to the sensing gratings. Changes in the grating deformations, caused by the change of weight’s gravitation force direction, occur due to the tilt of the inclinometer construction. The grating deformations are evaluated by the wavelength shifts of the reflective light. The angles of rotation around the reference axis can then be calculated. Construction of the inclinometer based on the discussed principle is shown, measured curves of the reflective wavelengths against the tilts of the inclinometer in the two axes are presented and the way of the tilt evaluation from the measured data is indicated. The described solution of the inclinometer is capable of measuring the tilt angles in the two perpendicular horizontal axes in the range of 2π rad with high accuracy and temperature independence.

Název v anglickém jazyce

Bragg grating implementation of fibre optic inclinometer

Popis výsledku anglicky

The paper shows the solution of the temperature independent fiber optic Bragg gratings based inclinometer. The principle of the inclinometer uses four sensing gratings situated in the medians of the regular tetrahedron. There is the weight placed in the tetrahedron’s center of gravity, connected to the sensing gratings. Changes in the grating deformations, caused by the change of weight’s gravitation force direction, occur due to the tilt of the inclinometer construction. The grating deformations are evaluated by the wavelength shifts of the reflective light. The angles of rotation around the reference axis can then be calculated. Construction of the inclinometer based on the discussed principle is shown, measured curves of the reflective wavelengths against the tilts of the inclinometer in the two axes are presented and the way of the tilt evaluation from the measured data is indicated. The described solution of the inclinometer is capable of measuring the tilt angles in the two perpendicular horizontal axes in the range of 2π rad with high accuracy and temperature independence.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Sensors and Electronic Instrumentation Advances: Proceedings of the 3rd International Conference on Sensors and Electronic Instrumentation Advances

ISBN

978-84-697-5615-7

ISSN

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e-ISSN

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Počet stran výsledku

236

Strana od-do

191-195

Název nakladatele

SEIA2017

Místo vydání

Moskva

Místo konání akce

Moscow

Datum konání akce

20. 9. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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