A ROCKET-BORNE ELECTRIC FIELD PROBE

Abstract
A description is given of an instrument developed to measure electric fields in and near auroral displays. The instrument is carried aloft in a rocket and ejected once the rocket is above the region where air drag is appreciable. During the free fall portion of the flight the instrument continuously measures the ambient electric field and telemeters this information to ground. The sensing element is a voltage-variable capacitor connected between two insulated portions of the container.

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