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Probe resistance (Read 4,495 times)
LucaB
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Probe resistance
Oct 16th, 2011 at 6:12am
 
Hello to all
A question:
On pico I never understood what is the probe resistance.
I tried to do some measure of resistance, but it is always zero.
Does anyone know the practical use of this probe?
Thanks
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Tom Roberts
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Re: Probe resistance
Reply #1 - Oct 16th, 2011 at 9:23am
 

Luca,

Ignore the resistance probe in the loaded section.  It should not be there.
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LucaB
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Re: Probe resistance
Reply #2 - Oct 18th, 2011 at 3:50pm
 
Tom Roberts wrote on Oct 16th, 2011 at 9:23am:
Luca,

Ignore the resistance probe in the loaded section.  It should not be there.

Hi Tom, and as a tool should be?
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Tom Roberts
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Re: Probe resistance
Reply #3 - Oct 18th, 2011 at 4:25pm
 
There are PicoScope models that have this capability but that probe should not appear if your scope does not support it.  Just a bug.

But...resistance is a generally useless measurement anyway.  Voltage drop and current are much better as they test under dynamic load conditions.

Besides, you can graph resistance if you so desire by deploying a math channel using Ohm's law.
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Tom Roberts
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LucaB
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Re: Probe resistance
Reply #4 - Oct 21st, 2011 at 3:26pm
 
With the response Tom, very nice.
The resistance control in graphical form is useful when I unmount floating gasoline to control
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Tom Roberts
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Re: Probe resistance
Reply #5 - Oct 21st, 2011 at 3:52pm
 


Quote:
The resistance control in graphical form is useful when I unmount floating gasoline to control


Huh?   Huh
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