descriptionPublicationkeyboard_double_arrow_right Article 10 Oct 2016Publisher:Kaunas University of Technology (KTU)Journal:Elektronika ir Elektrotechnika, volume 22 (issn: 1392-1215, eissn: 2029-5731,

Authors: Mateusz Siek; Bogdan Dziadak;

doi: 10.5755/j01.eie.22.5.16343

Wireless Network Node to Monitor Stress in Steel Structures

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Abstract

The article presents a wireless measuring node operating in a system monitoring stress in steel structures. Stress sensor is a foil strain gauge, working in a half-bridge circuit. The presented node is based on the microcontroller Atmeg 8, and the data transmission modem used 433 MHz band. The use of 22-bit ADC allows for measurement of the stresses at 4 u-strain resolution. The article discussed the structure of the node, installation problems in the actual real projects and the results of laboratory tests. Based on the research it can be concluded that the measuring node can be used to monitor the load caused by residual snow on the steel roofs. DOI: http://dx.doi.org/10.5755/j01.eie.22.5.16343

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