Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material
Patent
1993-06-17
1996-05-28
O'Shea, Sandra L.
Electricity: measuring and testing
Magnetic
With means to create magnetic field to test material
324230, G01B 706, G01R 3312
Patent
active
055214983
ABSTRACT:
Rolls of metallized strip material are changed automatically at a station incorporating a device by which the thickness of the strip material is sensed utilizing a resonant circuit driven at a frequency other than its own resonant frequency and consisting in a coil with a toroidal core affording an opening or gap through which the running strip material is directed; a voltage sensor connected to the terminals of the coil pilots the operation of two switched outputs by way of respective comparators such as can be preset and activated parametrically in response to selected voltage values registering at the terminals of the coil with variations in inductive reactance determined by and indicating the thickness and the electrical and physical properties of the passing strip.
REFERENCES:
patent: 3205352 (1965-09-01), Prucha
patent: 3544893 (1968-08-01), Savin et al.
patent: 3679968 (1972-07-01), Cammercon et al.
patent: 3878457 (1975-04-01), Rodgers
patent: 4005359 (1977-01-01), Smoot
patent: 4333052 (1982-06-01), Schmall
patent: 4674697 (1987-06-01), Filter et al.
patent: 4682038 (1987-07-01), Focke
patent: 4791367 (1988-12-01), Typpo
patent: 4901577 (1990-02-01), Roberts
patent: 5012206 (1991-04-01), Tigges
patent: 5132617 (1992-07-01), Leach et al.
Neri Armando
Tommasini Bruno
G.D S.p.A.
O'Shea Sandra L.
Phillips Roger
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