The diode current is periodic at the same frequency as the drive oscillator with a small phase offset. To familiarize yourself with 1-d maps, you will write a “cob-web” analyzer VI that shows the progress of iterations of the quadratic map See Figure We’ve already written a VI, named quad. Be sure to explain what you’re seeing in the Time Domain and Frequency Domain. Read chapters in LabView for Everyone and be sure to do the exercises. First, understand and make the section in Figure
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Does it even have one? Be sure to look at quad. Play with the non-linear parameter between 0 and about 1.
Function Generator Remote Control – ppt download
Now we’re ready to proceed to real-time continuous systems. Each frequency measurement is calculated from a data point 3 ms time record of the sinusoidal signal. Why fs345 you see two peaks in the DFT and not one?
You can enable them by right-clicking on the DFT window and selecting “show? Increase the drive frequency and you should see the phase-portrait begin to change. Contents 1 The Experiment Apparatus 2 Procedures 2. Building Applications Why building an application. The cantilever, outlined in red, is also visible.
Before starting LabView, create a directory for yourself under C: Then connect the function generator to the Computer Interface Fig. How does each slope compare to the line’s embedding-dimension? VI can be saved to a data file for more accurate linear fitting. Also visible are tabs for other scan modes: So rather than solving an eigenvalue problem on a multi-dimensional system, it’s easier to start with a one-dimensional map.
Take a look at the Henon Map. Adjust the frequency of the function generator between and Hz, and familiarize yourself with the operational details of ds3455.
EFM images of the same graphene hall cross as Fig. This flag must be marked.
Function Generator Remote Control
The Liapunov exponent for a 1-d map is given by Ref. Close the build specification by pressing “OK”. Experiment to see what gives you good graphs. Connecting the scope to see the phase portrait of the PN-junction. Once you have the two arrays of x’s and y’s, you must bundle them together and then build an array out of this bundle and the other bundled plots of f and g see the right side of Figure Next, change the waveform from a sine to a triangle at Hz.
Here is a list of helpful things you might want to know:. For both these driven systems, the basic set-up is the same: Once you have the working VI, you can use it for a variety of things.
See if you can explain what’s happening. What is the shape of the paths in phase space for this system?
Increase r to about 3, the map will bifurcate, and you should see two points on the return map. The phase-portrait becomes jittery and then it should jump to behavior that is periodic at twice the drive frequency. Now we’re ready dw345 hook up the computer.