NASA NTRS · 19650000240
Electrometer has automatic zero bias control
Abstract
Zero biasing circuit in a vibrating reed type electrometer counterbalances residual potential. It charges a capacitor to the residual potential and connects that capacitor in series with the vibrating reed so that the voltages cancel. This enables the electrometer to read zero output potential in the absence of an input current.
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1965-08-01. Electrometer has automatic zero bias control. https://ntrs.nasa.gov/citations/19650000240
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