A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Magnetostrictive sensor (MsS) technology for inspection and health monitoring of structures
Using the magnetostriction technology, Southwest Research Institute (SwRI) has developed an inexpensive, low profile sensor that can be permanently attached to a structure for inspection and/or monitoring of large areas of the structure. The sensor consists of a thin ferromagnetic strip material with a coil placed over the strip. When the coil is activated, the sensor generates guided waves that can travel a long distance in the structure to detect defects. By periodically acquiring the data and comparing it with the baseline data established at the time of sensor installation, structural changes that have occurred over time can be quickly detected and used for structural management decisions. Basic theory for the technology will be discussed including how parameters such as wave mode, velocity, and attenuation affect the selection of the guided wave used. This technology has been used in the field for over eight years to inspect piping, plates, rods, and other components. Examples of applications in a wide range of industries will be discussed. In addition, new technology such as multiplexed sensors and wireless communication capability is being developed to enhance the monitoring capability. Applications to pipeline, plate, and aircraft structure (metal and composite) monitoring will also be presented.
Magnetostrictive sensor (MsS) technology for inspection and health monitoring of structures
Using the magnetostriction technology, Southwest Research Institute (SwRI) has developed an inexpensive, low profile sensor that can be permanently attached to a structure for inspection and/or monitoring of large areas of the structure. The sensor consists of a thin ferromagnetic strip material with a coil placed over the strip. When the coil is activated, the sensor generates guided waves that can travel a long distance in the structure to detect defects. By periodically acquiring the data and comparing it with the baseline data established at the time of sensor installation, structural changes that have occurred over time can be quickly detected and used for structural management decisions. Basic theory for the technology will be discussed including how parameters such as wave mode, velocity, and attenuation affect the selection of the guided wave used. This technology has been used in the field for over eight years to inspect piping, plates, rods, and other components. Examples of applications in a wide range of industries will be discussed. In addition, new technology such as multiplexed sensors and wireless communication capability is being developed to enhance the monitoring capability. Applications to pipeline, plate, and aircraft structure (metal and composite) monitoring will also be presented.
Magnetostrictive sensor (MsS) technology for inspection and health monitoring of structures
Magnetostriktive Sensorik (MsS) für die Inspektion und Zustandsüberwachung von Bauelementen
Light, G.M. (author) / Kwun, H. (author) / Thwing, C.J. (author)
2009
9 Seiten, 8 Bilder, 10 Quellen
Conference paper
English
Magnetostrictive sensor for active health monitoring in structures [4702-33]
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