Field coil for use with potential coil for measuring inner field

Details Field coil for use with potential coil for measuring inner field Field coil for use with potential coil for measuring inner field

1981-08-18

1984-07-31

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

324223, 324227, 336184, G01N 2772, G01R 3312, G01R 3314

Patent

active

044633130

ABSTRACT:
Process and apparatus for measuring the hysteresis curves of magnetic materials when using a field coil and a potential coil of a size such that the ends of the latter coil project through the winding of the field coil. The process consists of integrating the output signal of the potential coil to obtain a first value, utilizing a voltage that is proportional to the field coil current to obtain a second value which is then added to the first value to obtain the field intensity H.
In order to compensate for the presence of the legs of the potential coil, additional short windings of higher turn density are included in the field coil winding.

REFERENCES:
patent: 3976935 (1976-08-01), Steingroever
Kohlrausch, Prakt. Physik, (1943), vol. 2, p. 100, FIG. 64.

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