Week #13: ADC Scaling & PID Math (from last week)

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rjagodowski
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Joined: Fri Sep 04, 2015 6:59 pm

Week #13: ADC Scaling & PID Math (from last week)

Post by rjagodowski »

This week we'll finish up any remaining discussion about the PID Math used by the BS2 to determine the Proportional, Integral and Differential (PID) components needed. We did this back in Week #12 here. Remember: Proportional is simply an amplifier with a constant gain. Integral is calculating the area under a curve (for example a temperature plot) and is approximated by breaking the area under the curve into small rectangles with a "length" equal to the height of the curve (temperatures) and the width being the "delta t" or the time between plot samples. The Differential part is the slope of the curve and can be approximated by the standard slope formula of "rise over run", or the difference in plot values (temperatures) divided by the "delta t", the time between plot samples.

For the ADC Scaling discussion today, I will make use of StampPlot posts made by a previous students HERE in Week #11 of the Spring 2019 EET-250L Lab section.

The documentation for this is posted on the CSET Forums HERE in Week #10 & #11.
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