Electricity: measuring and testing – Testing potential in specific environment – Voltage probe
Patent
1990-05-15
1992-07-21
Harvey, Jack B.
Electricity: measuring and testing
Testing potential in specific environment
Voltage probe
324149, G01R 3102
Patent
active
051326078
ABSTRACT:
A probe comprising at least one unshielded sensor tip and at least one transformer shielded within a conductive housing for sensing the electric field strength of a precise near field when connected to a radio frequency meter. Each enclosed transformer includes an annular ferrous core having a primary wire and a secondary wire wound thereon, with the input end of the primary wire extended slightly outside the distal end of the housing providing each sensor tip, and with the reference end of the primary wire connected to an annular conductor of a coaxial connector. The output end of the secondary wire is connected to an annular conductor of the coaxial connector. The reference end of the secondary wire and the shielded housing are connected to the annular conductor of the coaxial connector to provide a ground reference for the circuit.
REFERENCES:
patent: 2993167 (1961-07-01), Smith
patent: 3229212 (1966-01-01), Rogers
patent: 3283242 (1966-11-01), Oliver
patent: 3823373 (1974-07-01), Pike
patent: 4005357 (1977-01-01), Parkinson
patent: 4277744 (1981-07-01), Audone et al.
patent: 4831327 (1989-05-01), Chevnier et al.
Baran Jozef B.
Shah Shirsh J.
Harvey Jack B.
Regan Maura K.
Turner Roger C.
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