Solenoid torquer system

Details Solenoid torquer system Solenoid torquer system

1979-10-29

1981-06-16

Truhe, J. V.

Electricity: motive power systems

Torquing motors

318332, 318432, 318456, 318458, 318474, G05B 1700

Patent

active

042740401

ABSTRACT:
A solenoid torquer system with flux rate feed-back. The system includes a torquer coil and an associated core, and a device adapted to drive a current through the coil having an amplitude proportional to the difference between a coil current command signal and the actual current in the coil. A flux rate servo loop includes a sensor coil coupled to the core to provide a signal representative of the flux rate in the core. This flux rate signal is compared with a flux rate command signal having a ternary width-modulated form. The resultant difference signal is used as the current command signal. The system network provides a precise flux level, or force.

REFERENCES:
patent: 3378743 (1968-04-01), Weiser
patent: 3735226 (1973-05-01), Pittner
patent: 3868565 (1975-02-01), Kuipers
patent: 3997975 (1976-12-01), Knapp
patent: 4053818 (1977-10-01), Younkin
patent: 4152632 (1979-05-01), Peterson
patent: 4182979 (1980-01-01), Douglas et al.
Thomas, IEEE Transactions on Biomedical Engineering, Use of a Torque Motor as a Tachometer, Jul. 1977, pp. 388-390. _

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