Inductively operated sensor for testing technological quantities

Details Inductively operated sensor for testing technological quantities Inductively operated sensor for testing technological quantities

1975-02-18

1977-02-01

Corcoran, Robert J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

G01R 3312

Patent

active

040064069

ABSTRACT:
An inductively operated sensor for measuring a ferromagnetic work piece. Such a sensor includes a coil arrangement which contains a core and has primary and secondary windings. The coil arrangement is disposed in a paramagnetic housing. The housing is provided with a measuring head connected to the core and intended for being pressed against the work piece. The housing is also provided with contacts for an electronic measuring unit. The electronic measuring unit includes a supply of current, an amplifier, a recorder and an evaluation unit. The measuring head has a shape which conforms exactly to the surface of the work piece, thereby to obtain reproducible measuring results.

REFERENCES:
patent: 1236066 (1917-08-01), Dodds
patent: 3281666 (1966-10-01), Makino

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