Suspension systems for flux gate compasses

Details Suspension systems for flux gate compasses Suspension systems for flux gate compasses

1982-08-02

1984-08-14

Martin, Jr., William D.

Geometrical instruments

Indicator of direction of force traversing natural media

With damper or governor for sensor

33361, G01C 1728

Patent

active

044648421

ABSTRACT:
A suspension system suitable for a flux gate compass having compass windings (14) includes a ball joint (4,5,6) which permits both tilt and twist about a vertical axis, and a separate alignment element (16) for causing the windings to follow twisting motion of the fixed structure. The alignment element takes the form of a flexible printed circuit made into a double spiral form and carrying electrical conductors to provide the electrical connections to the windings. A zig-zag shape may be used instead of a spiral. The suspension does not suffer from the geometric imperfections of a Hooke's joint and avoids the need for separate flexible conductors which can interfere with the suspension operation and can break.

REFERENCES:
patent: 1226882 (1917-05-01), Henderson
patent: 3573610 (1971-04-01), Kesselring

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