Method and device for the continuous, contactless monitoring of

Details Method and device for the continuous, contactless monitoring of Method and device for the continuous, contactless monitoring of

1981-04-16

1983-07-19

Skiff, Peter K.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

C21D 154

Patent

active

043941931

ABSTRACT:
Internal structure of a metal strip is monitored by applying cyclically varying magnetic flux to the strip and sensing the flux induced in the strip. Signals corresponding to the magnetic field intensity of the applied cyclically varying field and to the resulting induced flux indicate the loss of energy due to the internal structure of the strip. Making a similar determination by similar monitoring apparatus following annealing of the strip allows the effect of the annealing to be determined. The signals from the two monitoring apparatus can be used to generate a comparison signal to control the operation of the annealing treatment apparatus.

REFERENCES:
patent: 2059054 (1936-10-01), Stargardter
patent: 2211017 (1940-08-01), Leifer et al.
patent: 2534420 (1950-12-01), Delaney
patent: 2828467 (1958-03-01), Stauffer
patent: 3130363 (1964-04-01), Camp et al.
patent: 3281678 (1966-10-01), Cilyo
patent: 3723859 (1973-03-01), Leonard

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