Research/Patents/US 4536685
US 4536685Tier 1 — UAP Program Assignee

CONTROL FOR GIMBALLED MONOPULSE ANTENNA ARRANGEMENT

Assignee

Raytheon

Filed as: RAYTHEON COMPANY, A CORP. OF DE.

Filed

Mar 3, 1982

Granted

Aug 20, 1985

Location

LEXINGTON MA US

Abstract

An arrangement for determining the rotational position of the rotor of an electrical gyroscope is shown to include: (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; (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 (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: Google Patents

35 USC §181 Secrecy Order

Imposed

Jun 29, 1982

Rescinded

Jul 5, 1983

Duration

1 year

Inventor

  • 1JEAN A. FATTAL

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records