A simpler representation.
http://www.edn.com/design/other/4381004/Femtoamp-fA-measurements
Subject: Re: [volt-nuts] How are femto-amps measured?
A simplest model is RC integration.
http://electronicdesign.com/test-amp-measurement/whats-all-femtoampere-stuff-anyhow
A simplest model is RC integration.
http://electronicdesign.com/test-amp-measurement/whats-all-femtoampere-stuff-anyhow
- Original Message -
Subject: [volt-nuts] How are femto-amps measured?
I saw the other day a Keithley 2636B SMU which has 0.1fA resolution @
10uV in a normal
Yes, these folks do not market like the commercial side but there is a small
industry supplying obsolete parts. They are not usually not focused to sell to
the public. Sometimes, they just hunt around for NOS stored in some forgotten
warehouse, then they test components to insure like new
Sorry folks, sent too fast. Errors corrected.
Yes, these folks do not market like the commercial side but there is a small
industry supplying obsolete parts. They are not focused to sell to the public.
Sometimes, they just hunt around for NOS stored in some forgotten warehouse,
then they test
These look like resistance demonstrators for physics labs; slide
potentiometers. Those devices were made very hardy back then, and
while they can easily be replaced by a precision bournes pot or a
used Tegam resistance box, you have it why not use it?
Just make sure the contacts are clean and
