Good way to measure resistance
Gabriel Gonzalez email (remove spam text)
What would be a good way to measure resistance (0 to 5 ohms) with 3 decimals
and get good accuracy +-0.001 ohm?
I discarded the A/D of a PIC 'cause it's only 8 bits, and intend to use 14
bits (at least), but I was thinking that I can use a lower bit count with
some kind of autoranging (maybe controlling a current source).
Another thing I am worried about is applying too much gain on an amplifier
(don't want to amplify noise).
Any suggestions to accomplish this?
P.S.: All this will be controlled by a PIC obviously.
See also: www.piclist.com/techref/index.htm?key=good+way+measure
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