基于NI-myDAQ 数据采集器的混沌电路实验系统

doi:10.16854 /j.cnki.1000-0712.200252

College Physics ›› 2021, Vol. 40 ›› Issue (01): 24-26.doi: 10.16854 /j.cnki.1000-0712.200252

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Experimental system for chaotic circuit based on NI-myDAQ data acquisitor

LIAO De-ju1，2，SHEN Han1，2，FENG Rao-hui1，2，CUI Xin-tu1，2，HUANG Zhen-cheng1，2， FANG Yi-zhong1，2

1. School of Physics，Sun Yat-sen University，Guangzhou，Guangdong 510275，China; 2. National Demonstration Center for Experimental Physics Education ( Sun Yat-sen University) ，Guangzhou，Guangdong 510275，China

Received:2020-06-11 Revised:2020-08-31 Online:2021-01-07 Published:2021-01-08

Abstract

Abstract: Chaotic circuit is a typical content of nonlinear system in the course of college physics experiment. In order to improve students' learning efficiency and self-learning ability of nonlinear experiment，a chaotic circuit experiment system is designed base on NI-myDAQ and LabVIEW. This system can improve the precision of small changes of chaotic parameters. It could intuitively display and record chaotic patterns in real time under different

parameters，and save phase diagrams，time domain diagrams and data. The Chua's chaotic circuit is measured by using this system，and the experimental results under certain parameters are given and compared with the simulation results obtained by using Multisim. The experimental results are in well agreement with that of the simulation.

Key words: NI-myDAQ, chaotic circuit, Multisim, LabVIEW

LIAO De-ju, SHEN Han, FENG Rao-hui, CUI Xin-tu, HUANG Zhen-cheng, . Experimental system for chaotic circuit based on NI-myDAQ data acquisitor[J].College Physics, 2021, 40(01): 24-26.

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Experimental system for chaotic circuit based on NI-myDAQ data acquisitor

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