Installation and process for measuring remanent magnetization of

Details Installation and process for measuring remanent magnetization of Installation and process for measuring remanent magnetization of

1994-07-18

1995-12-12

Strecker, Gerard R.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

By magnetic means

364422, G01V 326, G01V 340

Patent

active

054753104

ABSTRACT:
Probe and process for measuring the remanent field (R) of a geological formation. A measurement is made of the magnetic field (B+I1+R1) along the axis of the geomagnetic field using a scalar magnetometer, followed by a vector measurement of the resultant magnetic field (Bp+Ip+R3) projected onto an invariable measurement axis. With the aid of the calculated values of the geomagnetic field (B) and the magnetic susceptibility field (I), it is in particular possible to calculate a component (S) of the remanent magnetic field (R) perpendicular to the geomagnetic field (B) and determine if the cancellation of the component of the field (R1) along this axis is due to a tilting of the magnetic pole in history or a local reduction of the remanent magnetization.

REFERENCES:
patent: 3965413 (1976-06-01), Yungul
patent: 4071815 (1978-01-01), Zemanek, Jr.
patent: 5075625 (1991-12-01), Augustin et al.

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