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Re: Ultrasonic Sesnor Accuracy
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Originally Posted by SoyStuff
Okay then. Pardon my ignorance, but how exactly would one go about calibrating the ultrasonic sensor? Is there a specific process that we are supposed to follow, or do you just mean that we should get some data and work out a formula, which is what we've done.
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We took measurements every 6 inches. We wrote on a piece of paper the actual distance (measured via tape measure) and the voltage reading from LabVIEW. Put everything in an Excel spreadsheet, then use y = mx+b to find the best fit "m" (i.e. slope or scale factor) to make the data work best.
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An ounce of perception is worth a pound of obscure.
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Perhaps we should just have signs put up that say "Please remove your head and tail before entering". - Molten [more] 
02-02-2012, 21:08
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