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Unread 15-08-2010, 13:35
jhersh jhersh is offline
National Instruments
AKA: Joe Hershberger
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Re: semi-period counter

Quote:
Originally Posted by kamocat View Post
Well, I either found the accuracy of the counter, or (more likely) I found the accuracy of the Digital Output "Pulse" function. It seems to be about 8 milliseconds longer than I tell it to be.
The Maxbotix Sonar sends a pulse width of distance (in) * 147 microseconds.

Anyways, for now I'll just use Analog like usual, but I'd still like to get more info on the accuracy of the semi-period counter.
I don't have any idea what your test is, but it didn't get anywhere near the correct results. Please try to describe your test.

-Joe