Enhancement of Current Density by dc Electric Concentrator
Open Access
- 11 December 2012
- journal article
- research article
- Published by Springer Science and Business Media LLC in Scientific Reports
- Vol. 2 (1), srep00956
- https://doi.org/10.1038/srep00956
Abstract
We investigate a dc electric concentrator for steady current fields theoretically and experimentally. Based on the transformation electrostatics, we show that the dc concentrator can focus electric currents into the central concentrated region and enhance the electric field and current density. Outside the concentrator, the current lines are distributed as the same as those in a homogeneous conducting material. Hence, such a dc electric concentrator has no impact on other external devices. Using the analogy between electrically conducting materials and resistor networks, we design, fabricate, and test a dc concentrator using the circuit theory. The measured results agree very well with the theoretical predictions and numerical simulations, demonstrating the perfect concentrating performance.This publication has 20 references indexed in Scilit:
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