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Dispositivo ricaricatore magnetico-induttivo portatile ad impulso per apparecchi elettrici
No full textComparison between piezoelectric and magnetic strategies for wearable energy harvesting
Get PDFThis paper introduces the design and fabrication of energy harvesters for the power generation from human body motion. Two alternative strategies are compared: piezoelectric and magnetic inductive. The generated energy is used to supply body sensors including accelerometers and temperature sensors and RF module. Two prototypes of the magnetic based generator and of the piezoelectric generator are built and tested with shaker at resonance condition and by dedicated bench reproducing joints rotation during walking. The experimental results show that the magnetic prototype can generate 0.7mW from human body motion, while the piezo harvester generates 0.22 and 0.33μW respectively for flexion and extension at angular velocity lower than 1rad/s and 45° amplitud
Racchetta da sci o trekking dotata di dispositivo harvester magnetico-induttivo di generazione elettrica
No full textPerformances evaluation of an autonomous sensing network node for rail vehicles supplied by a piezoelectric energy harvester
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Self-supplied info-mobility and/or diagnostic system and harvester device for supplying such system
No full textInductive energy harvesters with magnetic suspensions: experimental identification of performances and efficiency
No full textThe design, fabrication and experimental identification of inductive energy harvesters for the conversion of vibrations into electricity are reported in this paper. The proposed generator is based on magnetically levitated suspensions and is addressed to structural monitoring applications on vehicles. The experimental tests have the goal to optimize the dynamic response of the harvester prototyp
An on-board braking monitoring system for intermodal freight trains
No full textThis paper describes the design and testing of an On-Board Unit monitoring system for intermodal freight wagons realized by the research group of Railway Engineering of Politecnico di Torino. The prototype of the On Board Unit was then installed and tested on a vehicle owned by Ambrogio Trasporti S.p.a. within the project ITS Cluster Italy 2020 funded by the MIUR. The developed prototype was tested within the project on the line that connect Turin (IT) to Mouguerre (FR) along the Railway of Frejus and its gallery. Vehicle parameters monitored during the tests were: the temperature of brake blocks, the operating pressures of the brake system and the vehicle accelerations. The measures carried out have allowed to verify, in the first place, the effectiveness of the monitoring system in line and to collect a significant amount of useful data for subsequently developing monitoring and diagnostic vehicle's algorithms
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