One last ESR question
On Sun, 26 Apr 2015 02:06:29 -0700, Phil Allison wrote:
On Sunday, April 26, 2015 at 6:13:29 PM UTC+10, wrote:
Hobbyists use ESR meters more than most folk, but real technicians
use other, faster, more reliable means.
** Wot utter ********.
Not so fast. I can do rthings with a scope and a square wave that'll
turn your grind.
** Obviously you have never used the Bob Parker ESR meter or similar.
Readings are done in circuit, shown in ohms, instant and quite accurate.
The display auto-ranges to cover 10 milliohms to 99 ohms.
You can measure low value resistors too and check many kinds of
batteries - particularly lithium coin memory cells for condition.
Leaves the scope and square wave method for dead.
I have the Atlas/Peak ESR meter which I have yet to get to grips with. I
figured it was worth acquiring since I have a ton of stuff that uses
electrolytics awaiting repair.
I still haven't worked out, however, why it is that this meter can
perform ESR measurments in circuit whereas for capacitance one has to
lift a lead. There's probably some obvious answer to this conundrum I'm
overlooking.
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