Patents
Sitemap › G01 - Measuring; Testing › G01C - Measuring distances, levels or bearings; Surveying; Navigation; Gyroscopic instruments; Photogrammetry or videogrammetry › G01C 19 - Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
Patents for G01C 19 - Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects (15,537)
09/1991
09/19/1991CA2073866A1 Miniature tactical angular rate sensor
09/18/1991EP0446496A2 Shielded magnetizing device and angular rate sensor in which such a device is used
09/17/1991US5049776 Apparatus for detecting rotation
09/17/1991US5048963 Dither signal remover for a dithered ring laser gyro
09/17/1991US5048962 Optical gyro, signal processing apparatus for the same and method of driving phase modulator used in the same
09/17/1991US5048961 Phase modulated fiber-optic gyroscope for measuring the angular velocity of a moving object
09/17/1991CA1289230C Improved fiber optic sensing coil
09/17/1991CA1289203C Synchronous demodulator with digital signal output
09/15/1991WO1991014285A1 Semiconductor chip gyroscopic transducer
09/11/1991EP0445778A1 Angular velocity sensor
09/11/1991EP0445441A1 Angular rate sensor
09/11/1991EP0273935B1 Method and apparatus for optical nutation sensing
09/10/1991US5046808 Integrated optics chip and method of connecting optical fiber thereto
09/10/1991CA1288850C Fiber-optic angular rate sensor having enhanced reliability
09/10/1991CA1288849C Ring laser gyroscope with geometrically induced bias
09/04/1991EP0444843A2 Interference sensors and methods of measuring a physical quantity using such interference sensors as well as vehicle control system
09/04/1991EP0444713A1 Device for detecting angular velocity
09/04/1991EP0444445A1 Dynamically tuned gyroscope
09/04/1991EP0277217B1 Spacecraft accelerometer auto-alignment
09/03/1991US5045745 Spinning piezoelectric beam of a dual-axis angular rate sensor and method for its adjustment
09/03/1991US5044749 Fiber-optic bender beam interferometer rate sensor
08/1991
08/28/1991CN1013710B Rongnark interferometer system
08/22/1991WO1991012544A1 Optical fibre light source
08/21/1991EP0442747A2 Method and apparatus for interferometric rotation sensor phase modulation, intensity demodulation, and control
08/21/1991EP0442280A2 Method and apparatus for semiconductor chip transducer
08/21/1991EP0441998A1 Fiberoptic Sagnac interferometer with digital phase cancellation for measuring rotation rate
08/16/1991CA2027079A1 Method and apparatus for interferometric rotation sensor phase modulation, intensity demodulation, and control
08/14/1991EP0441020A1 Piezoelectric vibratory rate sensor
08/13/1991US5038613 Angular rate detecting device
08/13/1991US5038485 Method and apparatus for the measurement of wheel alignment
08/13/1991CA2026546A1 Multioscillator ring laser gyro using compensated optical wedge
08/08/1991WO1991011684A1 Clinometer
08/08/1991WO1991011682A1 Process and device for measuring angular speeds
08/08/1991DE4003326A1 Verfahren und anordnung zum ermitteln von winkelgeschwindigkeiten Method and arrangement for angular velocities determined from
08/07/1991CN1053676A Three-dimensional synchronous interpretation system
08/06/1991US5037205 Integrated optic interferometric fiber gyroscope module and method
08/06/1991US5037204 Optical-fiber gyroscope
08/06/1991US5037203 Asymmetric ring laser gyroscope and method for detecting rotation with acentric photorefractive crystal
08/01/1991DE4002493A1 Inclination measurer using rotary table - carrying inclinometer and mounted on base plate with motorised rotation and lifting mechanically
07/1991
07/24/1991EP0343240A4 Coriolis rate sensor with synchronous quarter cycle demodulation
07/23/1991US5033854 Multiplexed fiberoptic gyro control
07/17/1991EP0437020A2 Output optics detection system
07/17/1991EP0436532A1 Torsional vibration drive
07/16/1991US5031988 Fiber optic gyro
07/10/1991EP0436276A1 Radio frequency excited lasers
07/10/1991EP0436052A1 Fiber optic Sagnac interferometer with digital phase resetting for measuring rotation rate
07/09/1991CA1286023C Reentrant fiber raman gyroscope
07/03/1991EP0434775A1 Fiber optical gyro
07/02/1991US5029276 Circuit arrangement for forming the difference and the sum of two detected signals
06/1991
06/27/1991DE3942819A1 Fibre loop for fibre gyroscope with 3 x 3 coupler - contains depolarised component with spliced doubly refractive fibres preventing contrast fading
06/26/1991EP0433570A1 Method and device for determining angular velocities using a fibre-optic ring interferometer
06/26/1991CA2016808A1 Piezoelectric vibratory rate sensor
06/25/1991US5026161 Fiber-optic gyroscope with reduced bias drift error caused by optical back reflections
06/19/1991CN1052371A North finding ayro
06/18/1991US5025346 Laterally driven resonant microstructures
06/18/1991US5024112 Gyroscopic apparatus
06/18/1991CA1285056C Low cost ring laser angular rate sensor
06/12/1991EP0431474A1 Fiber optic gyro
06/11/1991US5022761 Ring laser gyroscope with a tube assembly
06/11/1991US5022760 Compound resonator for improving optic gyro scale factor
06/11/1991US5022759 Ring laser gyroscope arranged for maintaining ionized gas discharge transverse to the optical axis of the gyroscope
06/11/1991US5022754 Determining the wavelength of optical radiation
06/06/1991DE3939904A1 Ring laser gyro with null crossing counting
06/05/1991EP0430747A1 Fiber optic measuring device, gyroscope and system for navigation and stabilisation
06/05/1991EP0429472A1 Improved north-seeking process.
06/04/1991US5020913 Fiber optic gyro with temperature compensated phase ramp
06/04/1991US5020912 Fiber optic rotation sensing system and method for basing a feedback signal outside of a legion of instability
06/04/1991US5020911 Gas-tight material
05/1991
05/30/1991WO1991007668A1 Cell of atomic or molecular vapors for optical pumping and magnetometer or gyroscope using such cell
05/29/1991EP0312552B1 Device for eliminating parasitic rotations of mobile mirrors in laser gyrometers
05/28/1991US5018860 Fiber optic gyroscope balanced plural serrodyne generators combined signal phase difference control
05/28/1991US5018859 Fiber optic gyroscope balanced plural serrodyne modulators phase difference control
05/28/1991US5018858 Ring resonator gyroscope control system with gain difference equalization
05/28/1991US5018857 Passive ring resonator gyro with polarization rotating ring path
05/16/1991WO1991006828A1 Dither signal remover for a dithered ring laser gyro
05/15/1991EP0427177A2 Vibrator
05/15/1991EP0427110A1 Fiber optic gyro
05/15/1991EP0426814A1 Sensor for determining angular velocity.
05/15/1991EP0426662A1 Apparatus for measuring angular velocity.
05/15/1991EP0342230A4 Multi-axis angular rate sensor having a single dither axis
05/14/1991US5016072 Semiconductor chip gyroscopic transducer
05/14/1991US5015619 Superconducting mirror for laser gyroscope
05/14/1991US5015095 Closed-loop fiber-optic angular rate sensor including a mixer arrangement for measuring rotational direction and rate
05/14/1991US5014555 Roll rate sensor
05/14/1991US5014554 Angular rate sensor
05/08/1991EP0425546A1 Redundant laser gyrometers
05/07/1991US5012904 Centrifugal brake and gyroscopes including same
05/07/1991US5012676 Gas rate sensor system
05/07/1991CA1283797C Two axis rate gyroscope
05/02/1991EP0425079A1 Fibre optic gyroscopes
05/02/1991EP0424937A2 Apparatus for compensating for disturbing torques acting on a stabilized spacecraft or the like, with momentum wheel means
05/02/1991EP0424663A1 Method and device for determining angular velocities
05/02/1991EP0338023B1 Dither signal remover for a dithered ring laser angular rate sensor
04/1991
04/30/1991US5012174 Method and apparatus for countering vibrations of a platform
04/23/1991US5009504 Monomode optical fiber ring interferometric device with semiconductor diode as light energy emission-reception/amplification means
04/23/1991US5009480 Fiber optic gyro
04/16/1991US5007695 Fiber optic phase modulator using electro-optic material in evanescent field
04/16/1991US5007289 Three axis inertial measurement unit with counterbalanced, low inertia mechanical oscillator
04/10/1991EP0421398A1 Vibratory gyroscope
04/10/1991EP0335869B1 Path length control mechanization for a ring laser angular rate sensor
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