Machine element or mechanism – Gyroscopes – Gyroscope control
Patent
1984-02-21
1987-01-06
Bonck, Rodney H.
Machine element or mechanism
Gyroscopes
Gyroscope control
74 5F, 74 56D, G01C 1930
Patent
active
046337229
ABSTRACT:
A single-axis servoed rate gyroscope has a sealed gimbal assembly that is mounted by bearings for angular displacement about a rotational axis, at right angles to the gyroscope spin axis. The gyroscope torquer comprises a circular, cylindrical coil mounted at the bottom of the gimbal assembly, coaxially of the spin axis and below the rotational axis. The coil extends in an annular gap formed between a cylindrical permanent magnet, mounted on the gyroscope base structure, and a part of the base structure which surrounds the magnet and which provides a magnetic return path. The magnet is polarized at right angles to the spin axis and the rotational axis, so that energization of the coil causes a restoring torque on the gimbal assembly about the rotational axis. The bearings are located in V-shape slots formed in the base structure surrounding the gimbal assembly. A capacitive pick-off is mounted on top of the gimbal assembly, and an electronic control unit in the form of several circuit boards is mounted above the gimbal assembly.
REFERENCES:
patent: 2595268 (1952-05-01), Kellogg
patent: 2608867 (1952-09-01), Kellogg et al.
patent: 3186239 (1965-06-01), Emmerich
patent: 3365960 (1968-01-01), Siff et al.
patent: 3490297 (1970-01-01), Brodersen
patent: 3886803 (1975-06-01), Jacobson et al.
patent: 4437354 (1984-03-01), Capaldi
Beardmore Geoffrey
Capaldi Nicholas R.
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