rescale analog inputs - Chief Delphi

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rescale analog inputs

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21-12-2009, 00:32

kamocat

Test Engineer

AKA: Marshal Horn

FRC #3213 (Thunder Tech)

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rescale analog inputs

Our analog inputs on the cRIO have a range from -10v to 10v.
Our accelerometer has an effective range from 0.6v to 2.4v
That's 9% of the full range, which means you get 9% of the full accuracy.

I was considering ways of rescaling it, and I was thinking a linear regulated 10v supply, a -10v supply, and an LM386 would be a good way to do it.

However, before I go out and buy anything, i wanted to check with you guys. Is there a simpler way to do this? Is there something I'm overlooking?

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