Parabolic Antenna Positioning
The U.S. Military?s early detection system includes a series of 18 meter diameter parabolic antennae located in a very harsh environment; one that exposes them to winds of up to 130 Kph. Winds this strong are capable of pushing the large dish antennae and causing control problems with the azimuth drive servomotor which, in turn, demagnetize the permanent magnets and reduce the motor torque.
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Torque Systems solved the problem by customizing an industrial brush platform motor design, which includes a tachogenerator and an integral magnet-charging circuit to recharge the magnets after peak torque conditions are encountered. The Torque Systems self-magnetizing servomotors provide for accurate, fail-safe continuous positioning of the parabolic antennae that are part of the U.S. Military?s critical early detection system. |
