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spuffock said:I need an amp for calibration purposes. It needs to stay an amp for an hour or so, not go wandering off to .999A or 1.001A due to things warming up.
100uA accuracy would be nice.
Any ideas?
spuffock said:I'm using a chopper amp in the project already. They seem to work like it says on the box. Incredible. I may well be going to strip the guts out of my old Time Electronics current source and build something better.
I thought, for the amp, I might have to build something, but how do you measure an accurate amp anyway? Maybe buy a new multimeter and trust to its accuracy is the best I can do without a fortune?