AZIMUTHAL MAGNETOOPTICAL ATTITUDE CONTROL UNIT Russian patent published in 2000 - IPC

FIELD: autonomous orientation equipment, orientation of stationary objects relative to the Earth. SUBSTANCE: gimbal suspension of attitude control unit is biaxial. Azimuthal orientation channel is inserted with source of coherent radiation, controlled optical phase modulator, uncontrolled optical phase modulator, focusing lens, scanistor, differentiator, two comparators, NOR gate, clock pulse generator, delay element, counter. Output of source of coherent radiation is optically coupled to input of controlled optical phase modulator and to input of uncontrolled optical phase modulator whose outputs are optically coupled to input of focusing lens which output is optically coupled to information input of scanistor. Output of the latter is connected to input of first comparator and to input of differentiator whose output is connected to second comparator. Output of first comparator is connected to first input of NOR gate which second input is linked to inverse output of second comparator. Output of logic NOR gate is connected to controlling input of counter whose counting input is connected to output of delay element. Input of the latter is connected to output of clock pulse generator. Input of clock pulse generator and controlling input of scanistor are tied together with triggering input. Output of counter is output of channel of azimuthal orientation and output of attitude control unit. EFFECT: increased precision of azimuthal orientation of stationary objects relative to direction of horizontal component of vector of intensity of geomagnetic field of the Earth. 3 dwg