Back to results
US 4,790,493 AGranted
Device for measuring the roll rate or roll attitude of a missile
AssigneeBodenseewerk Geratetechnick GmbH
InventorsGerhart Schwarzkopf, Bernd Dulat
Life of this patent
Estimating the term…
Abstract
A rate gyro (10) is arranged in a seeker head of a missile and is stimulated to nutate with its natural nutation frequency in inertial space for the purpose of scanning a field of view. The rotational frequency and the nutation frequency of the rate gyro (10) relative to the missile are determined. The roll rate or roll angle is achieved by subtraction of these frequencies multiplied by suitable factors depending on the gyro in a roll measuring circuit (32).
Claims5
Device for measuring the roll rate or roll attitude of a missile which rotates about its roll axis, comprising
- (a) an attitude gyro arranged in a seeker head of the missile and
- (b) means for stimulating the attitude gyro to nutate with its natural nutation frequency in inertial space,
- characterized by
- (c) means for detecting the rotational frequency (f.sub.K) of the attitude gyro (10) relative to the missile,
- (d) means for detecting the nutation frequency (f.sub.N) of the attitude gyro (10) relative to the missile, and
- (e) means for generating a signal representing the roll rate or roll attitude of the missile by subtraction of the rotational frequency and nutation frequency (f.sub.K and f.sub.N, respectively) obtained by said means, multiplied by factors depending on the gyro.
3 more elements
Dependencies are inferred from the claim text.