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Molecular and Quantum Acoustics

Tytuł artykułu

Surface acoustic wave stress sensors - designing analysis

Autorzy Filipiak, J  Solarz, L.  Steczko, G. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
EN Analysis of viability and application of Surface Acoustic Wave stress sensors (SAW-SSs) to operational safety of buildings and other engineering constructions is the main topic of the paper. SAW stress sensors (SAW-SSs) measure the stress existing on their surface measuring the delay of the SAW signal. The stress in SAW-SS is caused by the measured stress in elements of constructions. The idea of SAW delay lines is described in [1] for example. The information about acting stress is in intermediate frequency of two SAW-SSs working in the SAW generator [3]. This system diminishes influence of the temperature at the measurements. The relatively small intermediate frequency (about 100 kHz) may be easily transmitted at the relatively long distances (about some hundreds m) by concentric cables. SAW-SSs are bound to the linear or surface elements of constructions: beams, frames, plates or shells. Bending moments change the curvature of these elements. The changing curvature of these elements causes the change of strain and stress in the plate of the SAW-SSs. The SAW-SS may also be applied to the measurement of bending instability of rods in truss or lattice constructions. The warning systems signalling overstress or bending instability may be built using SAW-SSs.
Słowa kluczowe
EN surface acoustic wave sensors   stress meters  
Wydawca Silesian Division of Polish Acoustical Society
Czasopismo Molecular and Quantum Acoustics
Rocznik 2007
Tom Vol. 28
Strony 71--80
Opis fizyczny Bibliogr. 20 poz., rys.
autor Filipiak, J
autor Solarz, L.
autor Steczko, G.
  • Institute of Electronic and Control Systems, Technical University of Czestochowa, 17 Armii Krajowej Str., 02-240 Częstochowa, Poland,
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