Electrical field strength sensing probe

摘要

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.