SENSORS USED IN STRUCTURAL HEALTH MONITORING
نویسندگان
چکیده
منابع مشابه
Bragg grating-based fibre optic sensors in structural health monitoring.
This work first considers a review of the dominant current methods for fibre Bragg grating wavelength interrogation. These methods include WDM interferometry, tunable filter (both Fabry-Perot and acousto-optic) demultiplexing, CCD/prism technique and a newer hybrid method utilizing Fabry-Perot and interferometric techniques. Two applications using these techniques are described: hull loads moni...
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Smart sensors densely distributed over structures can provide rich information for structural monitoring using their onboard wireless communication and computational capabilities. However, issues such as time synchronization error, data loss, and dealing with large amounts of harvested data have limited the implementation of full-fledged systems. Limited network resources (e.g., battery power, ...
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The ability to deploy an array of sensors efficiently and effectively is a key factor in sensor network design. Sensor installation and management can be difficult in practice for a variety of reasons: a hostile environment, high labour costs and bandwidth limitations. We propose Virtual Visual Sensors (VVS) as a convenient physical sensor substitute for certain problems and environments. Major...
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Piezoelectric wafer active sensors (PWAS) are inexpensive, non-intrusive un-obtrusive devices that can be surface-mounted on existing structures, or inserted in a new composite structure. The PWAS can be used in both active and passive modes. In active mode, the PWAS generate Lamb waves that can exist as either traveling waves or standing waves. As traveling waves, PWAS-generated Lamb waves can...
متن کاملApplications of Structural Health Monitoring Using Fiber Optic Sensors
Fiber optic sensors have many advantages such as ease of embedding, flexible sensor size, wide temperature range, high sensitivity and etc[1]. Thus, fiber optic sensors have been introduced into many composite structures. Especially, FBG (Fiber Bragg Grating) strain sensors have noticeable attractions due to multiplexing capability, linear response and absolute measurement [2]. However, the use...
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ژورنال
عنوان ژورنال: The International Conference on Civil and Architecture Engineering
سال: 2012
ISSN: 2636-4387
DOI: 10.21608/iccae.2012.44256