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[AMPS] Nichrome wire resistance?

To: <amps@contesting.com>
Subject: [AMPS] Nichrome wire resistance?
From: 2@vc.net (measures)
Date: Thu, 19 Oct 2000 19:55:29 -0700
>
>At 10:14 PM 10/19/2000 -0400, you wrote:
>>
>>I was able to get a hold of a 29" long piece of "Nichrome ribbon", I am not
>>sure of it's exact alloy make-up, I was just told its Nichrome.  

We sell 20/80 alloy ribbon.  It has around 0.4 ohms per foot. 


>>It measures 3.19 mm (0.126 inches) in width and its .17 mm in thickness 
(0.005 inches)
>>as measured on an electronic digital caliper (new toy I just got, thrilled
>>with it, BTW...forgive me for going OT, Tool Nerd here!)  I'm having trouble
>>measuring this low of a resistance, does anyone know from a chart what
>>resistance I should expect from this wire?  I'm looking for approx .24 ohm.
>>(Jeff M. got an answer for me?)  Thanks all.  Phil W2GE
>>
>>
>
>Do you know anyone with a resistance or impedance bridge ?  Something like
>a GR 1650 or an ESI 250 series or something like that.  That's the best and
>most accurate way of measuring low resistances.  Also, some of the newer
>high-end DVM's (Fluke, Tektronix) have a low range for resistance that
>apparently works reasonably well.
>
An ordinary DMM can be used.  Put 1.00A through the unknown resistor.  
Measure the mV drop.  

cheers, Phil

-  Rich..., 805.386.3734, www.vcnet.com/measures.  
end


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