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Measure true RMS or AC signal on DC offset?

Question asked by TENgineer on Aug 18, 2015
Latest reply on Aug 18, 2015 by jstaley

I need to measure the true RMS voltage of a Sine wave with a DC offset of two different high voltage power supplies (PS1 and PS1).

PS1 DC offset: -6600 VDC nominal

PS2 DC offset: -9300 VDC nominal

Sine wave: 8.98 V peak relative to DC offset of PS1 or PS2.

Any ideas on how to employ a device such as the AD536A or AD637 to achieve this would be greatly appreciated.