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[...] structure was also used as a tool to evaluate and understand the behaviour of the developed prototype for operational modal analysis of civil engineering structures. The laboratory specimen consists in an inverted wooden pendulum with 1.70 m height built specially for testing purposes in the civil engineering laboratory at the University of Minho. The pendulum was designed in such a way that its dynamic properties replicates the properties of the Mogadouro´s Clock Tower, an old masonry tower in the northern part of Portugal. Testing [...]
System Overview
Requirements The aim of the system is to sample in a synchronized fashion multiple accelerometers placed at different locations in a structure and forward the data to a central station for later processing. The most relevant application requirements were identified as follows: - XYZ accelerometer (triaxial) - Max. measurement range: ± 1 g - Minimum sensitivity: 1 V/g - Typical resolution: 1 mg - Max. resolution: 50 µg - Frequency response, 3 dB: 0 - 100 Hz - Max. sampling rate: 100 Hz - Max. [...]
Using Wireless Sensor Networks for Structural Health Monitoring Structural Health Monitoring (SHM) has long been identified as a prominent application of Wireless Sensor Networks (WSNs), as traditional wired-based solutions present some inherent limitations such as: Installation/maintenance cost : from experience, the installation time of a SHM system for bridges and buildings can consume over 75% of the total testing time, and the installation labour costs can approach well over 25% of the total system cost). Scalability : as the system [...]
[...] Structural Monitoring (MSM) between CISTER-ISEP and ISISE-U. Minho) A Wireless Sensor Network Platform for Structural Health Monitoring: enabling accurate [...]