Impact of Sensing Element Coupled to Lambda Diode Based Chaotic Circuit

Kumari, Bibha; Gupta, Nisha

doi:10.1166/sl.2017.3855

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2019

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“…The noise added to the target signal forces the system’s state to switch, and the time when the system stays in one of the attractors is used to quantify its output proportional to the noise power. Kumari and Gupta [13] introduced a photoresistor into a Chua circuit and studied non-chaotic oscillations under different lighting conditions. The authors showed that the sensor can exhibit quick mode transition when the small photodiode resistance change occurs.…”

Section: Introductionmentioning

confidence: 99%

Chaotic Oscillators as Inductive Sensors: Theory and Practice

Каримов

Nepomuceno

Druzhina

et al. 2019

Sensors

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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.

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Section: Introductionmentioning

confidence: 99%