Apparatus Using Radioactive Probes for Measuring the Vertical Component of Atmospheric Potential Gradient from an Airplane

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  • 1 Arthur D. Little, Inc., Cambridge, Mass.
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Apparatus is described for measuring and recording the atmospheric potential gradient from an aircraft. It consists of two radioactive probes connected through an electromechanical coupling device to a conventional electrometer and recorder.

Apparatus is described for measuring and recording the atmospheric potential gradient from an aircraft. It consists of two radioactive probes connected through an electromechanical coupling device to a conventional electrometer and recorder.

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