Surface magnetometer with modulated flux gate section

Details Surface magnetometer with modulated flux gate section Surface magnetometer with modulated flux gate section

1992-05-14

1994-02-15

Snow, Walter E.

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

324212, 324222, G01N 2772, G01R 3312, G01R 3314

Patent

active

052870561

ABSTRACT:
A method and apparatus are disclosed for measuring the magnetic properties of magnetic materials by generating flux lines through a balanced magnetic core and through a magnetic sample placed adjacent to the core. Increased sensitivity is accomplished through a modulation of the flux in the magnetic core which is measured and subsequently demodulated to yield an electrical signal corresponding to the magnetic properties of the material being tested.

REFERENCES:
patent: 2477384 (1949-07-01), Mann et al.
patent: 3233171 (1966-02-01), Yamaguchi et al.
patent: 4843316 (1989-06-01), Hesterman
patent: 4901016 (1990-02-01), Kusatani et al.
patent: 4922200 (1990-05-01), Jackson et al.

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