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Is it possible to reliably measure nanovolts DC with Keithley 2002? According to its manual it has resoultion down to 1 nV.
However, on the lowest scale (200 mVDC) and integration time 10 PLC, slowly changing DC voltages about 10 µV are measured quite noisy, signal-to-noise ratio is about 5%.
When the same line used for measuring with a different nanovoltmeter the measurements, are far less noisy, about 1%.
- Keithley Applications
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- Joined: June 10th, 2013, 6:00 am
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Shielding is required from the front panel of the 2002 all the way to your device.
Nanovoltmeters have these features built in.
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