V
Vinod R. Challa
Researcher at Stevens Institute of Technology
Publications - 14
Citations - 1191
Vinod R. Challa is an academic researcher from Stevens Institute of Technology. The author has contributed to research in topics: Energy harvesting & Vibration. The author has an hindex of 8, co-authored 14 publications receiving 1081 citations. Previous affiliations of Vinod R. Challa include University of Florida & University of South Florida.
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A vibration energy harvesting device with bidirectional resonance frequency tunability
TL;DR: In this article, the design and testing of a resonance frequency tunable energy harvesting device using a magnetic force technique is presented, which enabled resonance tuning to ±20% of the untuned resonant frequency.
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A coupled piezoelectric-electromagnetic energy harvesting technique for achieving increased power output through damping matching
TL;DR: In this article, two independent energy harvesting techniques are coupled to provide higher electrical damping within the system, and a theoretical model has been developed which closely agrees with the experimental results, which illustrates the design considerations and limitations that one must consider to enhance device performance through the coupling of multiple harvesting mechanisms within a single energy harvesting device.
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Towards an autonomous self-tuning vibration energy harvesting device for wireless sensor network applications
TL;DR: In this article, the magnetic stiffness technique was used to tune the resonance frequency of a VEH device to match the frequency of the device and the source frequency in order to harvest energy.
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Wireless power transmission to an electromechanical receiver using low-frequency magnetic fields
TL;DR: In this paper, a near-field, electrodynamically coupled wireless power transmission system is presented that delivers electrical power from a transmitter coil to a compact electromechanical receiver.
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A micro-fluidic galvanic cell as an on-chip power source
Andres M. Cardenas-Valencia,Vinod R. Challa,David P. Fries,Larry Langebrake,Robert F. Benson,Shekhar Bhansali +5 more
TL;DR: In this article, a micro-fluidics actuated galvanic cell for on-demand power generation is presented, which is an aluminum anode/alkaline electrolyte/air cathode cell.