Bifilar electrometer
From Glossary of Meteorology
bifilar electrometer
An electrometer of the electrostatic type in which the potential to be measured is applied to two metal-coated quartz fibers, and the deflection due to their mutual repulsion is observed through a low-power microscope.
The bifilar electrometer is used for potential measurements in atmospheric electricity studies.
Compare unifilar electrometer.
Compare unifilar electrometer.