How Well Can We Extract the Permanent Displacement from Low-Cost MEMS Accelerometers?
AbstractFollowing the recent establishment of a high-density seismic network equipped with low-cost micro-electro-mechanical system (MEMS) P-wave-alert-device (P-Alert) by the earthquake early warning (EEW) research group at the National Taiwan University, a large quantity of strong-motion records from moderate-magnitude earthquakes (ML > 6) around Taiwan has been accumulated. Using a data preprocessing scheme to recover the dynamic average embedded within the P-Alert data, we adopted an automatic baseline correction approach for the P-Alert accelerograms to determine the coseismic deformation (Cd). Comparisons between the Cd values determined using global positioning system (GPS) data, strong-motion records from the P-Alert network, and data from the Taiwan Strong Motion Instrumentation Program (TSMIP) demonstrates that the near-real-time determination of Cd values (>2 cm), which provide crucial information for seismic hazard mitigation, is possible using records from low-cost MEMS accelerometers. View Full-Text
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Jan, J.C.; Chao, W.-A.; Wu, Y.-M.; Chen, C.-C.; Lin, C.-H. How Well Can We Extract the Permanent Displacement from Low-Cost MEMS Accelerometers? Sensors 2017, 17, 2643.
Jan JC, Chao W-A, Wu Y-M, Chen C-C, Lin C-H. How Well Can We Extract the Permanent Displacement from Low-Cost MEMS Accelerometers? Sensors. 2017; 17(11):2643.Chicago/Turabian Style
Jan, Jyh C.; Chao, Wei-An; Wu, Yih-Min; Chen, Chien-Chih; Lin, Cheng-Horng. 2017. "How Well Can We Extract the Permanent Displacement from Low-Cost MEMS Accelerometers?" Sensors 17, no. 11: 2643.
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