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- W655717944 abstract "The growing availability of low-power sensors, microprocessors, and transmitters makes it increasingly attractive to use distributed sensor networks for track-health monitoring. Widespread implementation of these networks will require robust and low-maintenance methods for powering the electronics. This research investigates two principal methods of harvesting mechanical power from passing railcars in order to supply electrical power to remote networks of sensors. The research team first considered an electromagnetic device (a simple electric generator) directly driven by vertical rail displacement. The team then considered a piezoelectric device (a crystalline material in which strain induces voltage) that is attached to the bottom of the rail and is driven by the longitudinal strain produced by passing railcars. It was demonstrated that each of these techniques can generate electrical power on the order of milliwatts (mW) per device when loaded, which should be sufficient to operate simple sensors. The focus of this research is to quantify the electrical power that can be generated using these methods under typical rail operating conditions, with the goal of ultimately being able to develop a system that uses regenerative techniques to supply power for track-health monitoring sensor networks." @default.
- W655717944 created "2016-06-24" @default.
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- W655717944 date "2007-08-01" @default.
- W655717944 modified "2023-09-24" @default.
- W655717944 title "Regenerative Power for Track-Health Monitoring" @default.
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- W655717944 hasPublicationYear "2007" @default.
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