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1. WO1991001008 - ANGULAR RATE SENTOR

Publication Number WO/1991/001008
Publication Date 24.01.1991
International Application No. PCT/GB1990/001035
International Filing Date 05.07.1990
Chapter 2 Demand Filed 07.02.1991
IPC
G01C 19/14 2006.01
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
19Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
02Rotary gyroscopes
04Details
06Rotors
14Fluid rotors
G01C 19/00 2013.01
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
19Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
G01P 3/26 2006.01
GPHYSICS
01MEASURING; TESTING
PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT;  INDICATING DIRECTION OF MOVEMENT 
3Measuring linear or angular speed; Measuring differences of linear or angular speeds
26Devices characterised by the use of fluids
CPC
G01P 3/26
GPHYSICS
01MEASURING; TESTING
PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
3Measuring linear or angular speed; Measuring differences of linear or angular speeds
26Devices characterised by the use of fluids
G01P 9/00
GPHYSICS
01MEASURING; TESTING
PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
9Measuring speed by using gyroscopic effect, e.g. using gas, using electron beam
Applicants
  • DWYER, Douglas, Frank, George [GB/GB]; GB
Inventors
  • DWYER, Douglas, Frank, George; GB
Agents
  • GEE, David, W.; Farmhouse Court Marston Sutton Coldfield West Midlands B76 ODW, GB
Priority Data
8915673.107.07.1989GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ANGULAR RATE SENTOR
(FR) DETECTEUR ANGULAIRE
Abstract
(EN)
An angular rate sensor for measuring angular velocity about a cavity sensitive axis which includes a fluid filled cavity, means to cause rotation of the fluid in the cavity about an axis perpendicular to said sensitive axis, the fluid having parallel to said rotation axis a flow rate gradient, and means to sense a change in the flow rate grandient with rotation of the cavity about said sensitive axis. The means can be electrical, as by measuring the change in electrical potential or electrical resistance or electrical current across the flow path, or optical by measuring the change in distribution of a neutrally buoyant material in an optically transparent fluid.
(FR)
Un détecteur angulaire mesurant la vitesse angulaire autour d'un axe sensible d'une cavité comprend une cavité remplie de fluide , un dispositif qui provoque la rotation du fluide dans la cavité autour d'un axe perpendiculaire audit axe sensible, le fluide possédant parallèlement audit axe de rotation un gradient de débit, et un dispositif destiné à détecter une variation du grandient de débit avec la rotation de la cavité autour dudit axe sensible. Le dispositif peut être électrique, par exemple grâce à la mesure de la variation du potentiel électrique ou de la résistance électrique ou du courant électrique à travers le trajet du fluide, ou alors optique grâce à la mesure de la variation dans la répartition d'un matériau flottant neutre dans un fluide transparent optique.
Also published as
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