Geometrical instruments – Indicator of direction of force traversing natural media – Diverse directional indicator
Patent
1977-10-14
1979-06-12
Aegerter, Richard E.
Geometrical instruments
Indicator of direction of force traversing natural media
Diverse directional indicator
33310, 33313, 33366, 33361, G01C 906, G01C 1730
Patent
active
041576195
ABSTRACT:
An inclination responsive device including a coil energized to produce a magnetic field extending along a normally vertical axis of the device, and a flux gate assembly adapted to respond to a horizontal component of that field upon tilting movement of the axis to an inclined non-vertical position, and to thereby produce an output which varies in response to changes in inclination. The flux gate assembly is desirably also responsive to the earth's magnetic field or another ambient field to also produce an output representing directional orientation of the device with respect to the ambient field.
REFERENCES:
patent: 1980100 (1934-11-01), Schlumberger
patent: 3778703 (1973-12-01), Jackson
patent: 3888201 (1975-06-01), Zuvela
patent: 3937078 (1976-02-01), Williams
Aegerter Richard E.
Green William P.
Scientific Drilling Controls
Shepperd John W.
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