TW-NCE-II Nonlinear Circuit Chaos Experiment Instrument Introduction: The study of nonlinear dynamics and its related bifurcation chaos phenomenon has been a hot topic in the scientific community in the past 20 years. A large number of papers have been published on this subject. Chaos phenomenon involves physics, mathematics, biology, electronics, computer science, economics and other fields, and is widely used. The nonlinear circuit chaos experiment has been included in the new general physics experiment syllabus of comprehensive universities, and is a new basic physics experiment that is welcomed by students in science and engineering colleges. The nonlinear circuit chaos experiment instrument jointly developed by the Physical Experiment Teaching Center of Fudan University and our company has the following advantages: characteristic: 1. The experiment circuit adopts the most basic circuit of electromagnetism experiment in basic physics, highlighting the key content in physics and physical experiment teaching. 2. The basic elements of the circuit are wired by students themselves, which is conducive to improving students' hands-on ability. The integrated block and power supply are equipped with protective devices, and the instrument is secure and not easy to be damaged. This instrument can be used in basic physical experiments, physical demonstration experiments and design open physical experiments in colleges and technical secondary schools. Experiment content: 1. Use RLC series resonant circuit to measure the inductance of ferrite dielectric inductance provided by the instrument when passing through different currents, and explain the reason for the change of inductance. 2. Use an oscilloscope to observe the waveform generated by LC oscillator and the waveform after phase shifting. Observe the phase diagram composed of the above two waveforms. 3. Change the value of adjustable resistance R in RC phase shifter and observe the periodic change of phase diagram. The phase diagrams of period doubling bifurcation, intermittent chaos, triple period, attractor (periodic chaos) and double attractor (periodic chaos) are recorded. 4. Measure the volt ampere characteristics of the active nonlinear negative resistance "element" composed of LF353 double operational amplifiers, and explain the cause of chaos in combination with the dynamic equation of the nonlinear circuit. Technical parameters: 1. Four and a half digit voltmeter, measuring range 0-20V, resolution 1mV 2. The active nonlinear negative resistance element LF353 is composed of double operational amplifiers
Introduction: The study of nonlinear dynamics and its related bifurcation chaos phenomenon has been a hot topic in the scientific community in the past 20 years. A large number of papers have been published on this subject. Chaos phenomenon involves physics, mathematics, biology, electronics, computer science, economics and other fields, and is widely used. The nonlinear circuit chaos experiment has been included in the new general physics experiment syllabus of comprehensive universities, and is a new basic physics experiment that is welcomed by students in science and engineering colleges. The nonlinear circuit chaos experiment instrument jointly developed by the Physical Experiment Teaching Center of Fudan University and our company has the following advantages:
