Inductive Limit Switch Based on Chaotic Circuit with Double-Scroll Attractor

Abstract

Sensors based on chaotic oscillators comprise a promising direction in the field of nonlinear dynamics. Hypothetically, such sensors have improved sensitivity, selectivity, and rate. In this paper, we research and develop an inductive sensor based on the Sprott Case B chaotic oscillator, which features a double-scroll attractor. We propose a circuit implementation with inductive coil, and compare the results of the computer simulation with experimental study. We conclude that the proposed circuit is suitable for use as a limit switch to determine the position of a steel plate, as its dynamics is switching from chaotic to periodic regime at a certain adjustable distance between a coil and the plate. The performance obtained in the study is comparable with sensors of conventional design, but has the potential for improvement.