[Test-Equipment] Resistor measurement

[Richard Knoppow]

----- Original Message ----- 
From: "Glenn Little WB4UIV" <glennmaillist at bellsouth.net>
To: <test-equipment at mailman.qth.net>
Sent: Tuesday, July 05, 2011 8:15 PM
Subject: [Test-Equipment] Resistor measurement


>I have a resistor marked 180002 Ohms at 0.01%.
> What instrument could be used to verify the resistance is 
> within the
> indicated tolerance?
> Or should I just call it 180K and call it good?
>
> Thanks
> 73
> Glenn
> WB4UIV

     If you really have to measure it to the tollerance you 
need a bridge with about one fifth the error, that is one 
capable of measuring to an _accuracy_ of about 0.002%, 0.001 
would be better.  That is getting into the realm of 
laboratory gear. 0.01% is a very high accuracy resistor. The 
2 is interesting because the tollerance comes out to about 
+ - 18 ohms.