Connections for Bouncing Ball Circuit. Play with the non-linear parameter between 0 and about 1. In case your application uses VI templates, you must have them outsided libraries somewhere in your project. Take some time to understand the simple behaviors of the phase portrait: Make the following connections referring, in addition to Figure You should make sure that the product of “Number of points per value of V” and ” ” of points” does not exceed 2 31 – 1. This site is also available in the following languages:
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At such a low driving amplitude, the diode is responding linearly: Select “Random number generator. Close the build specification by pressing “OK”.
pabview In case your application uses VI templates, you must have them outsided libraries somewhere in your project. Many dynamical systems are described by a cosine function, for example the simple harmonic oscillator of a mass on a spring: The diode current is periodic at the same frequency as the drive oscillator with a small phase offset.
After bandpass filtering, this signal is sent both to the host for further processing for explanation of frequency detection algorithm, see Sec. The sine-wave is also connected via the square-wave converter on the NLD box to the computer’s timer pin labeled GATE0 for computer measurement of the drive frequency.
Connections for Bouncing Ball Circuit to the computer. What department is this class for? Labviee two graphs should display the time-series of the signal it should look like a sine-wave and the discrete Fourier transform DFT.
Now we’re ready to hook up the computer. If their distance of separation increases exponentially, i.
For both these driven systems, the basic set-up is the same: These changes are necessary because the “AI Wave” module spits out a 2-dimensional array of numbers including a column of voltage values and a column of indices, while we only want a 1-dimensional array of voltage values. This is recommended, since real binaries execute faster, need less RAM, have a guaranteed labviee of the VIs used they can’t be changed! The main tools are a data-acquisition computer-interface card and the LabView software package.
The computer modified sine-wave is then fed to the NLD system under study.
Consequently, all of the inputs in quad. Your report should be an introduction to NLD and Chaos and a presentation of experimental results.
One output is ball velocity, one is ds35 position height from a fixed reference. The bouncing ball circuit and the PN-junction. Look for limit cycles, period windows, etc.
Instrument Control (GPIB, Serial, VISA, IVI)
Some of the module inputs need to be told whether to accept elements or arrays. After you look at the algorithm in Ref. You will probably find it useful to know that the inputs to LabView’s arithmetic operators are polymorphic. There are numerous ones in the references: PDF version Pages of this lab. This site is also available in the following languages: For example you can wire an array and a constant to the “add” function and the result is a new array whose elements are the old array with the constant added to each of them.
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Read chapters in LabView for Everyone and be sure to do the exercises. The connections on the computer interface box. Make sure to have lots of different values for r, the chaotic parameter.
Experiment to see what gives you good graphs. What happens if the sample rate is a multiple of the frequency of the cosine? So let’s assume we have a series of map-iterates. Before starting LabView, create a directory for yourself under C: