Apparatus for and method of measuring a high voltage electric field

Apparatus for measuring a high voltage electric field comprising a pair of electrodes in an electric field to be measured, dielectric means supporting said electrodes within said electric field substantially free of the effects of the surroundings on the electric field proximate said electrodes, said electrodes being electrically separate from one another, means connected to said electrodes for sensing the electric potential of said field, means for generating an output signal indicative of said electric field being sensed, said sensing means and said generating means being effectively shielded from the electric field by said electrodes, means for receiving said signal located remote from said generating means so as to have substantially no effect on said field adjacent said apparatus, and non-electrically conductive means for transmitting said signal from said generating means to said remote receiving means, said non-electrically conductive transmitting means comprising fiber optic transmission lines of suitable non-electrically conductive, light transmitting material interconnecting said generating means and said remote receiving means.

Apparatus for measuring a high voltage electric field comprising a pair of electrodes in an electric field to be measured, said electrodes being electrically separate from one another, dielectric means supporting said electrodes within said electric field substantially free of the effects of the surroundings on the electric field proximate said electrodes, means connected to said electrodes for sensing the electric potential of said field, and means for generating an output signal indicative of said electric field being measured, said electrodes being a pair of part-spherical members of electrically conductive material, said part-spherical members being connected together so as to form a hollow spherical sensor body and being electrically insulated from one another, said generating means being located within said spherical sensing member for being shielded thereby, means for receiving said signal located remote from said generating means so as to have substantially no effect on said field adjacent said apparatus, and non-electrically conductive means for transmitting said signal from said generating means to said remote receiving means.

Apparatus for measuring a high voltage electric field comprising a pair of electrodes in an electric field to be measured, said electrodes being electrically separate from one another, means connected to said electrodes for sensing the electric potential of said field, means for generating an output signal indicative of said electric field being sensed, said electrodes being a pair of flat plates of electrically conductive material arranged in generally fact-to-face relation and spaced apart a predetermined distance, said plates being electrically separate from one another, said generating means being located between said plates for being shielded at least in part thereby, dielectric means supporting said electrodes within said electric field substantially free of the effects of the surroundings on the electric field proximate said electrodes, means for receiving said signal located remote from said generating means so as to have substantially no effect on said field adjacent said apparatus, and non-electrically conductive means for transmitting said signal from said generating means to said remote receiving means.

Apparatus for measuring a high voltage electric field comprising a pair of electrodes in an electric field to be measured, said electrodes being electrically separate from one another, means connected to said electrodes for sensing the electric potential of said field, means for generating an output signal indicative of said electric field being sensed, said electrodes being a pair of elongate, part-cylindrical members, each of which has a part-circular cross section and a part-circular outer surface, said part-cylindrical members being spaced apart a predetermined distance, dielectric means supporting said electrodes within said electric field substantially free of the effects of the surroundings on the electric field proximate said electrodes, said generating means being located between said members and being shielded at least in part thereby, means for receiving said signal located remote from said apparatus so as to have substantially no effect on said field adjacent said apparatus, and non-electrically conductive means for transmitting said signal from said generating means to said remote receiving means.