- LEEI-14 Van De Graaff Generator
- LEEI-21 Electron Beam Demo
- LEEI-26 Work Function
- LEEI-35 Hall Effect
- LEEI-37 Helmholtz Coils
- LEEI-38 Solenoid
- LEEI-42 Magnetic Hysteresis Loop
- LEEI-45 Magnetoresistive Effect
- LEEI-47 Magnetoresistive Sensor
- LEEI-50 PN Junction
- LEEI-55 Nonlinear Circuit Chaotic
- LEEI-60 Electromagnetic Wave Demo
- LEEI-61 Microwave Experiment-Basic
- LEEI-62 Microwave Experiment-Advanced

Note**:** oscilloscope not included

Features

Simple circuit for demonstrating complicate phenomena

Rich experimental contents and stable experimental results

Hands-on electronics

Introduction

Nonlinear dynamics and associated bifurcation chaotic phenomena have received more and more attention in scientific research over the past two decades. Chaos phenomenon is related to physics, mathematics, biology, electronics, computer science, economics and other fields with widespread applications.

Using this apparatus, the following experiments can be performed:

1. Use RLC series resonance circuit to measure the inductance of a ferrite material at different currents;

2. Observe waveforms generated by a LC oscillator on an oscilloscope before and after RC phase-shifting;

3. Observe phase figure of the above two waveforms (i.e. Lissajous figure);

4. Observe periodic variations of the phase figure by adjusting the resistor of the RC phase shifter;

5. Record phase figures of bifurcations, intermittency chaos, triple times period, attractor, and double attractors;

6. Measure V-I characteristics of a nonlinear negative resistance device made of a LF353 dual op-amp;

7. Explain the cause of chaos generation using the dynamics equation of nonlinear circuit.

Specifications

Description | Specifications |

Digital voltmeter | Digital voltmeter: 4-1/2 digit, range: 0 ~ 20 V, resolution: 1 mV |

Nonlinear element | LF353 dual Op-Amp with six resistors |

Power supply | ± 15 VDC |

**Part List**

Description | Qty |

Main unit | 1 |

Inductor | 1 |

Magnet | 1 |

LF353 Op-Amp | 2 |

Jumper wire | 11 |

BNC cable | 2 |

Instruction manual | 1 |

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