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6221 harmonics
6221 harmonics
I'm using a model 6221 as an AC current source in a test setup that monitors the system's third harmonic response to a sine wave through a lock-in amplifier. The current source does not seem to supply a clean enough signal for this application. If I apply a current of 10 mA (RMS) to a 25 ohm resistor, there appears to be about 1.7uA of current being supplied at the third harmonic. Is that within specification limits or does the instrument need recalibration?
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- Keithley Applications
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- Joined: June 10th, 2013, 6:00 am
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Re: 6221 harmonics
It appears that there is not a spec for THD nor particular harmonic content.
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