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)
09/1989
09/26/1989CA1261043A1 Dither signal remover for a dithered ring laser angular rate sensor
09/26/1989CA1260594A1 Path length control mechanization for a ring laser angular rate sensor
09/26/1989CA1260593A1 Ring laser having amplitude and phase controlled externally injected back scatter
09/26/1989CA1260126A1 Dither suspension mechanism for a ring laser angular rate sensor
09/21/1989WO1989008818A1 Cavity length control apparatus for a multioscillator
09/20/1989EP0333578A1 Highly dynamic gyroscope
09/20/1989EP0332780A1 Apparatus and method for phase modulating optical signals in a fiber optic rotation sensor
09/19/1989US4868479 Low loss permanent magnet motor
09/19/1989US4868434 Dynamically tuned gyro with unitary rotor assembly
09/19/1989US4867567 Ring laser gyro frame design resistant to thermal gradient effects
09/19/1989CA1259688A1 Random bias for a passive cavity sensor
09/19/1989CA1259687A1 Readout for a ring laser angular rate sensor
09/13/1989EP0332412A1 Combination fringe pattern and power monitoring assembly for a ring laser gyroscope
09/12/1989US4865452 Beam combiner assembly for ring laser gyroscope
09/12/1989US4865449 Optical signal rejection filter and application of said filter to ring interferometers
09/12/1989US4865436 Low cost ring laser angular rate sensor
09/12/1989US4864861 Frame assembly and dither drive for a coriolis rate sensor
09/08/1989WO1989008237A1 Torsional vibration drive
09/06/1989EP0331602A2 Angular rate sensor nozzle
09/06/1989EP0331581A1 Piezoelectric mirror for a laser gyroscope
09/06/1989EP0331339A1 Angular displacement sensor
09/05/1989US4864586 Hollow cathode glow discharge ring laser block and electrode structure for ring laser angular rate sensors
09/05/1989US4863273 D.C. component controlled fiber optic gyroscope
09/05/1989US4863272 Multi-mode fiber optic resonator gyroscope
09/05/1989US4863271 Optical combiner for a ring laser gyro
08/1989
08/31/1989DE3805905A1 Fibre-optic gyroscope
08/31/1989DE3805250A1 Schwingungswinkelgeschwindigkeit - detektorvorrichtung Vibrational angular velocity - detector device
08/30/1989EP0329996A1 Fibre-optical gyroscope
08/30/1989EP0329921A1 Multiangular vertical and horizontal 3-dimension homo-step surveying instrument
08/29/1989US4862149 Fault display device for gyroscopic instruments
08/29/1989US4862050 Optical commutation and tilt sensing for a permanent magnet gyro
08/29/1989US4862049 Constant area pulse generating network
08/29/1989US4861161 Method of constructing a moment insensitive pathlength control mirror assembly for a ring laser gyroscope
08/29/1989US4861160 Method for planar beam path alignment of a square ring laser gyroscope
08/24/1989DE3804766A1 Rate gyro
08/23/1989EP0329344A1 Gyroscope system
08/23/1989EP0328623A1 Servo loop control for a coriolis rate sensor dither drive
08/16/1989EP0328396A1 Flexure mounting assembly
08/16/1989EP0328247A1 Angular velocity sensor
08/15/1989US4856901 Velocity control system using piezoelectric transducers
08/15/1989US4856900 Quadrupole-wound fiber optic sensing coil and method of manufacture thereof
08/15/1989US4856332 Angular rate sensor nozzle
08/10/1989WO1989007237A1 Closed loop fiber optic gyroscope
08/09/1989EP0326776A1 Piezoelectrically driven mechanical oscillation device and its use in a laser gyrometer
08/02/1989CN1034430A Sagnac type optical fiber interferometer system
07/1989
07/27/1989WO1989006779A1 Stabilized pointing mirror
07/26/1989EP0324851A1 Angular rate sensor with phase shift correction
07/25/1989US4850708 Method and apparatus for planar alignment of a ring laser gyroscope for minimum magnetic bias sensitivity
07/25/1989US4850666 Slab-type optical device
07/19/1989EP0324620A1 Angular velocity sensor
07/19/1989EP0324114A2 Digital-analog conversion arrangement
07/18/1989US4848910 Sagnac type optical fiber interferometer system
07/18/1989US4848909 Borosilicate glass substrate sputtered with alternating layers of zirconium oxide and silicon dioxide
07/18/1989US4848169 Two axis rate gyro apparatus
07/18/1989US4848158 Single-axis centrifugal rate sensor
07/18/1989US4848156 Frame assembly and dither drive for a coriolis rate sensor
07/12/1989EP0075013B1 Fiber optic rotation sensor
07/11/1989US4847855 Thermally neutral dither motor design
07/11/1989US4846574 Retroreflected antilocking feedback
07/05/1989EP0323359A1 Fixation device for the actuation mechanism of a laser gyroscope
07/05/1989EP0323358A1 Device for attaching two elements with an inserted seal crushed under great pressure
07/04/1989US4844615 Method and system for correcting random walk errors induced by rate reversals in a dithered ring laser gyroscope
06/1989
06/29/1989WO1989005962A1 Hollow cathode glow discharge ring laser block and electrode structure for ring laser angular rate sensors
06/27/1989US4842409 Monomode optical fiber ring interferometric device with semiconductor diode as light energy emission reception/amplification means
06/27/1989US4841773 Miniature inertial measurement unit
06/27/1989CA1256575A1 Automatic continuous nulling of angular rate sensor
06/27/1989CA1256574A1 Synchronous fm digital detector
06/27/1989CA1256546A1 Support for ring laser gyro
06/27/1989CA1256545A1 Fiber-optic rotation rate sensor having dual interferometer loops
06/22/1989DE3742201A1 Fibre gyroscope
06/20/1989US4840489 Interferometer gyroscope having two feedback loops
06/14/1989EP0320102A1 Ring laser gyroscopes
06/14/1989EP0320101A1 Ring laser gyroscopes
06/13/1989US4839903 Ring laser gyroscopes
06/13/1989US4838099 Gyrocompass
06/07/1989EP0318972A2 Vibrating gyro and driving method thereof
06/06/1989US4837774 Common mirror triaxial ring laser gyroscope having a single internal cathode
06/06/1989US4836679 Rotation sensors based on symmetrical electro-magnetic oscillators
06/06/1989US4836677 Ring laser cavity length control mirror assembly
06/06/1989US4836676 Phase reading fiber optic interferometer
06/06/1989US4836675 Apparatus and method for detecting rotation rate and direction of rotation and providing cavity length control in multioscillator ring laser gyroscopes
06/06/1989US4836023 Vibrational angular rate sensor
06/06/1989CA1255139A1 Optical frequency converter device and a rate gyro containing such a device
06/01/1989WO1989004968A1 Multi-axis angular rate sensor having a single dither axis
06/01/1989WO1989004948A1 Coriolis rate sensor with synchronous quarter cycle demodulation
05/1989
05/30/1989USRE32931 Vibratory angular rate sensor system
05/30/1989US4834538 Fibre optic gyroscope with nulling feedback control loop
05/30/1989US4834493 Method of terminating an optical fiber
05/30/1989US4833932 Stabilised mount
05/24/1989EP0316359A1 Optical wavelength monitor
05/23/1989US4833417 Synchronous demodulation system with digital output
05/18/1989WO1989004460A1 Pentagonal ring laser gyro
05/16/1989US4831632 Method and apparatus for optically aligning a laser cavity
05/16/1989US4830495 Balanced dual servo VCO passive ring laser gyroscope
05/16/1989CA1254268A1 Off axis optical communication system
05/16/1989CA1254064A1 Multi-sensor pickoff assembly
05/09/1989US4829537 Solid state lasers with spherical resonators
05/09/1989US4828389 Integrated triad optical rate sensor apparatus
05/05/1989WO1989003974A1 System for measuring the position of a vibrating object
05/03/1989EP0313563A1 Process and device for measuring the position of wheels.
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