Research On Temperature Character Stics Of Programmable Chaotic Circuit

One of the most common parameters in environmental stresses is temperature which is defined as a sign of the average thermal energy of the molecular motion of an object.To measure temperature,some features of object induced by temperature have been widely used.Different from diode temperature sensors,chaos-based temperature measurement has caused the concern among the experts and scholars in and outside China.The focus of this dissertation is to reveal the temperature characteristics of chaotic circuits.These characteristics are expected to be applied to monitor human body temperature.Hence,this dissertation introduces the temperature characteristics of a newly designed programmable chaotic circuit.To begin with,the simulation experiments reveal that the nonlinear mechanism is the existence of a menristor.The programmable outputs are chaotic signals which are obtained by changing the connection mode of the chaotic new circuit.Then,the temperature characteristics of the signals were simulated and measured.Seven chaotic features have been applied in this dissertation including a new feature proposed by our research team.This new feature is combined with random number,Hilbert transform and Mutual information.Finally,the results of this research show that two temperature windows with positive and negative coefficient,related to body temperature,have been figured out.This helps to gather data and lay a foundation for inventing chaos-based temperature sensors in the future.