[volt-nuts] How to measure micro-amp currents and have low impedance?
bruce.griffiths at xtra.co.nz
Sun Sep 27 00:27:35 UTC 2009
Bob Paddock wrote:
>>> I'm not familiar with Patterson's work, and Google was not much help.
>>> Will you point me to a specific paper or schematic please?
>> Its not particularly new, you have probably seen the circuit many times
>> (the name has been around for at least 50 years or so) see:
> You're right, I've seen lots of those circuits, just never recall the
> name Patterson
> being mentioned related to them.
> Thank you for the link.
Probably because it is sometimes misspelled as Paterson its mentioned in:
US Patent 7395308,
I first came across it in a Phibrick application note.
Patterson's original paper appears in:
Review of scientific Instruments (1963) 34, 1311-1316.
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