Patents
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)
05/1989
05/02/1989US4826320 Dither signal remover for a dithered ring laser angular rate sensor
05/02/1989US4825713 Monolithic suspension assembly using cross flexure pivots
05/02/1989CA1253559A1 Bi-axial supporting arrangement
04/1989
04/25/1989US4825261 Method for reading out rotation rate with a passive optical resonator
04/25/1989US4825260 Apparatus and method using amplification cells for ring laser gyroscope cavity length control
04/25/1989US4824253 Glass driver for laser mirror
04/25/1989US4824252 Laser gyro system
04/25/1989US4823626 Inertial sensor arrangement
04/25/1989US4823461 Method of manufacturing fluidic angular rate sensor
04/20/1989WO1989002607A3 Partly transparent mirror for a ring laser gyro
04/18/1989US4821572 For producing an output signal
04/12/1989EP0311357A2 Roll rate sensor
04/11/1989US4821282 Mirror assembly for lasers
04/11/1989US4820008 Integrated optics ring resonator
04/11/1989CA1252551A1 Laser angular rate sensor with dithered mirrors
04/11/1989CA1252313A1 Gyroscopes
04/05/1989EP0309963A2 Vibration gyro having an H-shaped vibrator
04/04/1989US4818109 Fiber optical combiner particularly for a ring laser gyro
04/04/1989US4818087 Orthohedral ring laser gyro
03/1989
03/29/1989EP0309343A1 Active optical phase-conjugate gyroscope
03/28/1989US4817112 Low cost ring laser angular rate sensor
03/28/1989US4815853 Three-axis fiber-optic ring interferometer
03/28/1989US4815852 Apparatus for measuring rotation by a combination of the Sagnac and Fizeau effects
03/28/1989US4815851 Frequency modulated phase-locked stabilized passive ring laser gyro
03/23/1989WO1989002607A2 Partly transparent mirror for a ring laser gyro
03/23/1989WO1989001605A3 Ring laser gyro frame design resistant to thermal gradient effects
03/22/1989EP0308087A2 Step data processor for 180X and 90X compass synchro data
03/21/1989US4814680 Servo loop control for a coriolis rate sensor dither drive
03/21/1989US4813774 Closed loop optical resonator
03/21/1989CA1251547A1 Low q body dithered laser gyro assembly
03/15/1989EP0307321A1 Piezoelectric gyrometer
03/14/1989US4811613 Two-axis angular rate gyroscope
03/14/1989US4811602 Frame assembly and dither drive for a coriolis rate sensor
03/14/1989CA1251068A1 Interferometer with kerr effect compensation
03/09/1989WO1989002060A1 Fiber optic gyroscope with improved bias stability and repeatability and method
03/08/1989EP0306397A1 Acoustical gyrometer
03/08/1989EP0306320A2 Two-axis angular rate gyroscope
03/07/1989CA1250939A1 System for reducing the sensitivity of a ring laser gyro to changes in a magnetic field
02/1989
02/28/1989US4809007 Navigation method
02/28/1989US4807999 Two source passive ring laser gyroscope
02/28/1989US4807998 Ring laser having amplitude and phase controlled externally injected back scatter
02/28/1989US4807953 Apparatus and method for frequency locking electromagnetic optical signals
02/28/1989US4807485 Motor driven caging system for free gyros
02/28/1989CA1250458A1 Hemispherical resonator gyro
02/23/1989WO1989001655A1 Servo loop control for a coriolis rate sensor dither drive
02/23/1989WO1989001606A1 Fiber optics gyroscope
02/23/1989WO1989001605A2 Ring laser gyro frame design resistant to thermal gradient effects
02/23/1989EP0276249A4 Method and apparatus for automatic calibration of magnetic compass.
02/23/1989DE3727167A1 Faserkreisel Fiber-optic gyroscope
02/22/1989CN1003392B Solid state optical interferometer
02/21/1989US4807138 Device for determining the north direction
02/21/1989CA1250322A1 Glass-ceramics suitable for ring laser gyros
02/08/1989EP0302275A2 Arrangement for detecting intensity-modulated light signals
02/07/1989US4802767 Method and apparatus for optical nutation sensing
02/07/1989US4802766 Dither signal remover for a dithered ring laser angular rate sensor
02/07/1989US4802364 Angular rate sensor
02/07/1989CA1249743A1 Fiber optic frequency shifter
02/01/1989EP0301125A1 Device for superpositioning two light beams
01/1989
01/31/1989US4801206 Simplified ring laser gyroscope dither control and method
01/26/1989WO1989000700A1 Angular rate sensor with phase shift correction
01/26/1989WO1989000699A1 A frame assembly and dither drive for a coriolis rate sensor
01/24/1989US4799385 Angular rate sensor with phase shift correction
01/12/1989WO1989000326A1 Apparatus and method for sensing rotation rate and direction and for controlling cavity length
01/11/1989EP0298651A2 Angular rate sensor
01/11/1989EP0298511A2 Vibration gyro
01/10/1989US4797841 Method and apparatus for automatic calibration of magnetic compass
01/10/1989US4796993 Phase modulation type fiber optic gyroscope
01/04/1989EP0297338A1 Sagnac optical fibre interferometer
01/03/1989US4795259 Path length control mechanization for a ring laser angular rate sensor
01/03/1989US4795258 Nonplanar three-axis ring laser gyro with shared mirror faces
12/1988
12/29/1988WO1988006276A3 Device for eliminating parasitic rotations of mobile mirrors in laser gyrometers
12/29/1988WO1988006275A3 Device for elininating parasitic rotations of piezoelectric mirrors in laser gyrometers
12/28/1988EP0297059A2 A gyromagnetic-effect cryogenic gyroscope
12/28/1988EP0296746A2 Interferometric sensor using time domain measurements
12/28/1988CA1247576A Super radiant light source
12/28/1988CA1247404A Gyroscope
12/27/1988US4793708 Fiber optic sensing coil
12/27/1988US4793195 Vibrating cylinder gyroscope and method
12/20/1988US4792676 Gyro apparatus with a vibration portion
12/20/1988US4791815 Cyclically driven gyro and adjusting system therefor
12/20/1988US4791727 Gyro apparatus
12/20/1988CA1247219A1 Ring laser gyro block stiffener
12/15/1988WO1988009913A1 Process and device for measuring the position of wheels
12/14/1988EP0294915A2 Rotation rate nulling servo and method for a fiber optic rotation sensor
12/13/1988US4791574 Land vehicle navigation device comprising a filter unit for determining an optimum heading from presented orientation signals, and filter unit to be used in said navigation device
12/13/1988US4791460 Readout for a ring laser angular rate sensor
12/13/1988US4790658 Dither signal remover for a dithered ring laser angular rate sensor
12/13/1988US4790657 Ring laser gyroscope curved blade flexure and support ring assembly and method
12/13/1988US4790493 Device for measuring the roll rate or roll attitude of a missile
12/06/1988US4789241 Optical fiber sensing systems having acoustical optical deflection and; modulation devices
12/06/1988US4788872 Rearmable spring caged and energized free gyro
12/01/1988WO1988008117A3 Combination beam combiner and beam emitter for ring laser gyroscope
11/1988
11/30/1988EP0292999A2 Method of manufacturing fluidic angular rate sensor
11/30/1988EP0292842A2 Gas rate sensor
11/30/1988EP0292593A1 Gyrocompass navigation system for land vehicles
11/24/1988DE3715321A1 Method for measuring absolute rotations and arrangement for carrying out the method
11/23/1988EP0292106A2 Inertial sensor
11/23/1988EP0292103A2 Fiber optic sensing coil
11/22/1988US4787058 Synthetic quadrature generating apparatus
11/22/1988US4786173 Method and apparatus for phase modulating a fiber-optic rotation sensor