By a News Reporter-Staff News Editor at Telecommunications Weekly -- Research findings on Sensor Research are discussed in a new report. According to news originating from Daejeon, South Korea, by VerticalNews correspondents, research stated, "Displacement measurements are useful information for various engineering applications such as structural health monitoring (SHM), earthquake engineering and system identification. Most existing displacement measurement methods are costly, labor-intensive, and have difficulties particularly when applying to full-scale civil structures because the methods require stationary reference points."
Our news journalists obtained a quote from the research from the Department of Civil and Environmental Engineering, "Indirect estimation methods converting acceleration to displacement can be a good alternative as acceleration transducers are generally cost-effective, easy to install, and have low noise. However, the application of acceleration-based methods to full-scale civil structures such as long span bridges is challenging due to the need to install cables to connect the sensors to a base station. This article proposes a low-cost wireless displacement measurement system using acceleration. Developed with smart sensors that are low-cost, wireless, and capable of on-board computation, the wireless displacement measurement system has significant potential to impact many applications that need displacement information at multiple locations of a structure. The system implements an FIR-filter type displacement estimation algorithm that can remove low frequency drifts typically caused by numerical integration of discrete acceleration signals."
According to the news editors, the research concluded: "To verify the accuracy and feasibility of the proposed system, laboratory tests are carried out using a shaking table and on a three storey shear building model, experimentally confirming the effectiveness of the proposed system."
For more information on this research see: Development of a wireless displacement measurement system using acceleration responses. Sensors, 2013;13(7):8377-92. (Elsevier - www.elsevier.com; Sensors - www.elsevier.com/wps/product/cws_home/504103)
The news correspondents report that additional information may be obtained from J.W. Park, Dept. of Civil and Environmental Engineering, KAIST, Daejeon, South Korea. Additional authors for this research include S.H. Sim, H.J. Jung and B.F Spencer.
Keywords for this news article include: Asia, Daejeon, South Korea, Engineering, Sensor Research.
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