Abstract
Engineering solutions based on dynamical chaos may improve the characteristics of various sensors such as metal detectors, salinometers, optical and magnetic field sensors, and so on. In this study, we investigated the possibility of creating inductive sensors based on Sprott chaotic oscillators with a planar printed circuit board inductive coil. The electric circuit of each sensor was obtained by merging two parts, namely, a harmonic oscillator and a nonlinear filter. A novel method for real-time oscillation analysis using a bandpass filter is presented. The suggested design technique was experimentally validated, and the sensor prototype showed characteristics making it practically applicable. In addition, the proposed technique can be used for the development of other types of sensors based on chaotic oscillators.
Highlights
Current advances in technologies allow continuous improvement of sensors’ characteristics, such as minimal environmental impact, robustness, physical dimensions, energy consumption, and prime cost [1]
Sosnicki et al [3] proposed the design of a miniature multilayer printed circuit board (PCB) coil for use in industrial eddy current proximity sensors
In our previous work [14], we proposed a method for synthesizing chaotic circuits with inductances based on defined chaotic oscillator equations
Summary
Current advances in technologies allow continuous improvement of sensors’ characteristics, such as minimal environmental impact, robustness, physical dimensions, energy consumption, and prime cost [1]. The developed coil was four times smaller than the wired coil of the same inductance and showed an advantage in detection range over the wired coil of 60% The use of such materials for the planar coil manufacturing of low-temperature co-fired ceramics (LTCC) provides high reliability, stability, and excellent electrical characteristics which are desirable in sensor applications [1]. Korneta et al [12] proposed a noise-activated sensor based on a Chua circuit It operates in a chaotic mode where two attractors coexist. In our previous work [14], we proposed a method for synthesizing chaotic circuits with inductances based on defined chaotic oscillator equations. The purpose of the presented study is to demonstrate the possibility of creating an inductive sensor based on a chaotic oscillator given in the form of differential equations.
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