| Subject: | Re: Resistance measurement in the 0.5 - 1.0 Ohm range |
|---|---|
| From: | "redbelly" |
| Date: | 13 Mar 2006 05:41:02 -0800 |
| Newsgroups: | sci.electronics.basics |
Chris wrote: > Even with a coil that is sensitive to too much power, you can make a > fairly accurate resistance measurement using a DMM with a 200mV range, > if you have a precision series resistor to give a known current. > Chris, Looks like a good method. By the way, one needn't buy a precision resistor, so long as you can measure the resistor precisely. Measure a "5%" 100-ohm resistor to be 102.5 ohms (for example), and you're precision is even better than blindly using a 1% 100-ohm value. Mark |
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