Methods of and means for measuring angles
OwnerMichael King Russell, Anthony William Russellinventors
Life of this patent
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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.
Claims8
Apparatus for measuring both the angle between the gravity vector and a particular axis of a body and the angle between the direction of projection of the gravity vector on to a plane at right angles to said particular axis and an axis fixed with respect to said body and lying in said plane, comprising a transducer having a pendulum beam bar magnet mounted on the free end of said pendulum beam, four solenoids forming two differential fluxgate pairs confronting said magnet and disposed symmetrically with respect to the neutral position of the pendulum beam and means interconnecting said differential fluxgate pairs whereby, in use, the magnetic flux in each respective fluxgate pair is equal to zero.
Dependencies are inferred from the claim text.