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Last LabView class

Last LabView class. Feb 07, 2007. How to acquire data. Learn MAX (measurement and automation explorer). Find Devices, Software, Drivers by NI. Make block diagram of what you want (your final product) Make your program by parts (modular). Points to be discussed today:. Case structure

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Last LabView class

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  1. Last LabView class Feb 07, 2007.

  2. How to acquire data • Learn MAX (measurement and automation explorer). • Find Devices, Software, Drivers by NI. • Make block diagram of what you want (your final product) • Make your program by parts (modular).

  3. Points to be discussed today: • Case structure • Waveform generation • Binary files

  4. Homework #4. Due Feb 21st. (a) Find a function generator VI and make a similar VI as in class, with LESS blocks. (b) Compute the FFT of the signals generated by the VI programmed in class. Show the magnitude on a waveform graph. (c) Modify the VI (from today’s class) to also show a filtered version of the signal on the same graph as the raw signal. You can choose which filter you will implement. (d) Read the binary (1D) file with LabView (available from the website) and answer the following: what are the three waveforms you see? Which amplitudes? What’s the relative frequency from one to the other?

  5. Tips • If you get stuck, ASK. • Don’t do all (a) through (d) the night before it’s due! • For (d): • there are slightly less than 7.5 million points in the file. • Data were saved with the “write to binary” VI. • I am asking for the big picture of what the waveforms are. Don’t get caught in the details.

  6. Hossein’s office hours • Thursdays 10am-12:30pm, STI, 2E • Fridays, 4:30pm-6pm, STI, 2E Other ways to get help • Nathalia’s office hours: Mondays 10-12; Wednesdays 1-3pm. By email: npeixoto@gmu.edu • Saugandhika: room 6, STI, or by email: sminnika@gmu.edu

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