Coupling-independent, Real-time Wireless Resistive Sensing through Nonlinear PT-symmetry
Applied Physics
2021-01-04 v4
Abstract
We report the realization of coupling-independent, robust wireless sensing of fully-passive resistive sensors. PT-symmetric operation obviates sweeping, permitting real-time, single-point sensing. Self-oscillation is achieved through a fast-settling nonlinearity whose voltage amplitude is proportional to the sensor's resistance. These advances markedly simplify the reader. A dual time-scale theoretical framework generalizes system analysis to arbitrary operating conditions and a correction strategy reduces errors due to detuning from PT-symmetric conditions by an order of magnitude.
Cite
@article{arxiv.2007.05077,
title = {Coupling-independent, Real-time Wireless Resistive Sensing through Nonlinear PT-symmetry},
author = {Siavash Kananian and George Alexopoulos and Ada S. Y. Poon},
journal= {arXiv preprint arXiv:2007.05077},
year = {2021}
}
Comments
6 pages of main text (6 figures) with 12 pages of supplemental material (13 figures)