Summary
International Symposium on Nonlinear Theory and its Applications
2009
Session Number:B1L-A
Session:
Number:B1L-A2
Bistable Micro-circuit For The Combined Electric Field And Magnetic Field Sensor
Visarath In, P. Longhini, N. Liu, A. Kho, J. D. Neff, A. Palacios, A. R. Bulsara,
pp.-
Publication Date:2009/10/18
Online ISSN:2188-5079
Summary:
Bistable systems are prevalently found in many sensor systems. Recently, we have explored (unidirectionally) coupled overdamped bistable systems that admit self-sustained oscillations when the coupling parameter is swept through the critical points of bifurcations. Complex behaviors emerge from these systems when an external signal (AC, DC) is applied uniformly to all the elements in the array. The results are being used to develop extremely sensitive magnetic sensors capable of resolving field changes as low as 150pT. Extending on this work, we now explore the underlying dynamics of a coupled bistable system realized in microelectronic circuits which belong to the same class of dynamics as the afore-mentioned system. The emergent behavior is being applied to develop an extremely low current sensing system, which forms the basis for the combined electric and magnetic field sensors on the same substrate.