Optical Fibre Sensors as a Potential Solution for Monitoring Wooden Structures

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F16%3A00301491" target="_blank" >RIV/68407700:21110/16:00301491 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21720/16:00301491
Result on the web
—
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
Optical Fibre Sensors as a Potential Solution for Monitoring Wooden Structures
Original language description
This paper deals with a new technique for monitoring timber constructions. The technique is based on an idea that strain measuring fibre Bragg gratings can be embedded during the fabrication inside elements made from a glued laminated timber. In order to verify the idea, the load by a hydraulic cylinder have been applied on the timber samples, while the strains of optical sensors operating concurrently with the typical strain gauges are being measured. The measured data from electrical and optical sensors are compared with an analytically obtained data. The measurement verified that optical fibre sensors embedded between the wooden lamellae can work with relative error less than 10 %, if the analytical approach is taken as the reference. Moreover, loading the samples at different temperatures in the climatic chamber verified that the effect of environmental changes during the measurement can be well compensated by the two sensors operating contradictory. In the last part of the paper, a Java application is described for continuous monitoring of load-bearing elements in the buildings. The application evaluates measured spectrum given by fibre-optic sensors and consequently calculates mechanical strain. Based on the evaluation, the application is able to turn on an alarm.
Czech name
—
Czech description
—

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)