Methods of and means for measuring angles

Details Methods of and means for measuring angles Methods of and means for measuring angles

1974-11-29

1976-02-03

Martin, Jr., William D.

Geometrical instruments

Indicator of direction of force traversing natural media

Borehole direction or inclination

33366, 324 34D, G01C 904, G01C 914

Patent

active

039356434

ABSTRACT:
Apparatus is provided for measuring both the angle between the vertical and a particular axis of a body and the azimuth angle of the displacement of such axis from the vertical. The body houses a trasnducer having a bar magnet mounted on the free end of a pendulum beam and confronting four solenoids forming two differential fluxgate pairs disposed symmetrically with respect to the neutral position of the pendulum beam. The two differential fluxgate pairs are preferably so interconnected that the magnetic flux in each fluxgate pair is equal to zero.

REFERENCES:
patent: 3805398 (1974-04-01), Russell et al.
IBM Technical Disclosure Bulletin, L. F. Shew, Vol. 6, No. 5, Oct. 1963, "Magnetic-Null Transducer".

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