Control for gimballed monopulse antenna arrangement
US4536685A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1982 |
| Grant date | Aug 20, 1985 |
| Priority date | — |
| Expiry date | Mar 3, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An arrangement for determining the rotational position of the rotor of an electrical gyroscope is shown to include: PA1 (a) at least one sensor including a Hall effect crystal having a rotating magnetic field applied thereto, such field being synchronous with the field causing rotation of the rotor; PA1 (b) a phase-lock loop, responsive to square wave signals corresponding to signals out of the Hall effect crystal and a voltage-controlled oscillator to provide a signal approximating the rotational position of the rotor; and PA1 (c) a phase detector, responsive to negative going transitions of the square wave and to reference pulses to synchronize the rotational position of the rotor with the reference pulses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.