Electricity: measuring and testing – Electrical speed measuring – Including speed-related frequency generator
Patent
1988-08-05
1991-05-28
Snow, Walter E.
Electricity: measuring and testing
Electrical speed measuring
Including speed-related frequency generator
32420725, 303106, 244111, G01P 348, G01P 354, G01B 714, B60T 870
Patent
active
050197746
ABSTRACT:
An amplifier circuit is placed in the wheel assembly of the landing gear of an aircraft. The amplifier circuit amplifies a signal whose frequency is proportional to the speed of the wheel prior to transmitting the signal over a transmission line to sensing and control circuits. This permits a high frequency signal to be generated at the wheel assembly and insures that the signal has sufficient power to be sensed by a remotely located sensing circuit even though the signal may be attenuated by the capacitance in the transmission line. This permits a higher frequency signal to be generated than previously possible. This provides greater wheel speed resolution and enhanced sensitivity for aircraft landing gear anti-skid systems.
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Snow Walter E.
The Boeing Company
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