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)
11/1988
11/22/1988	US4786172 Fiber-optic angular rates sensor having enhanced reliability
11/17/1988	EP0291368A2 Method and device to detect the variation of propagation times in a ring interferometer and their application in controlling the wavelenght
11/17/1988	EP0290723A1 Measuring instrument consisting of a laser and a ring resonator
11/15/1988	US4784454 Optical fiber and laser interface device
11/09/1988	EP0290297A2 Rejection filter for optical signals and its application in ring interferometers
11/09/1988	EP0147389B1 Seeker gyroscope having reduced cross-coupling between rotor spin and precession
11/08/1988	US4783170 Readout for a ring laser gyro using a platinum beam splitter
11/08/1988	US4783169 Control of a ring laser gyro cavity according to a preselected model
11/08/1988	US4782700 Frame assembly and dither drive for a coriolis rate sensor
11/08/1988	CA1244543A1 Cathode-block construction for long life lasers
11/08/1988	CA1244542A1 Bias signal filter for a ring laser
11/01/1988	US4781462 Path length control signal derivation circuit for a laser angular rate sensor
11/01/1988	US4781461 Rpm measuring device utilizing an optical fiber coil and winding method for making the coil
10/1988
10/26/1988	EP0288032A2 Integrated triad optical rate sensor apparatus
10/25/1988	US4779985 Dither suspension for ring laser gyroscope and method
10/25/1988	US4779975 For sensing an ambient effect
10/25/1988	US4779469 Gyroscope
10/25/1988	CA1243765A1 Cathode construction for a laser
10/25/1988	CA1243764A1 Low cost ring laser angular rate sensor
10/25/1988	CA1243763A1 Retroreflected antilocking feedback
10/20/1988	WO1988008117A2 Combination beam combiner and beam emitter for ring laser gyroscope
10/19/1988	EP0287188A2 Error correction apparatus at the dither turnaround point and method therefor
10/12/1988	EP0286598A2 Opto-electronic system for determining direction and speed of a vehicle by emission of laser beams, and the simultaneous measurement of the rotation
10/12/1988	EP0285723A2 Path length control for laser angular rate sensors
10/11/1988	US4776700 Switched state fiber optic gyroscope
10/05/1988	EP0284760A1 Optical pick-off for gyroscopic sensor
09/1988
09/27/1988	US4773759 Interferometer with Kerr effect compensation
09/21/1988	EP0283105A2 Fibre optic gyro
09/20/1988	US4771644 Mounting flexure
09/15/1988	DE3807325A1 Geraet zur messung der phasenmodulation in einem optischen wellenleiter Apparatus for measuring the phase modulation in an optical waveguide
08/1988
08/31/1988	EP0280113A2 Fiber-optic angular rate sensor having enhanced reliability
08/31/1988	EP0279852A1 Off axis optical communication system.
08/31/1988	EP0176539B1 Rotation rate sensor
08/25/1988	WO1988006276A2 Device for eliminating parasitic rotations of mobile mirrors in laser gyrometers
08/25/1988	WO1988006275A2 Device for elininating parasitic rotations of piezoelectric mirrors in laser gyrometers
08/24/1988	EP0279602A2 Polarization maintaining fiber interferometer and method for source stabilization
08/23/1988	US4765740 Optical apparatus based on measurement of phase or frequency shift of an oscillating beam, particularly useful as an optical gyro
08/23/1988	US4765739 Fiber optical rotation sensor utilizing the Sagnac phase difference
08/11/1988	WO1988004767A3 Dither signal remover for a dithered ring laser angular rate sensor
08/09/1988	US4762416 Monomode optical fiber reciprocal ring interferometer device
08/09/1988	US4762415 Multiple axis ring laser gyroscopes
08/03/1988	EP0276249A1 Method and apparatus for automatic calibration of magnetic compass
08/02/1988	CA1240015A1 Fiber-optic rotation sensor
07/1988
07/27/1988	CN87210031U Singal chip controller used for top compass
07/26/1988	US4759629 Fiber optic gyroscopes
07/26/1988	US4759220 Angular rate sensors
07/19/1988	US4758090 Optical wavelength monitor using blazed diffraction grating
07/13/1988	EP0274004A2 A two axis rate gyroscope
07/12/1988	US4756620 Signal evaluation method for a fiber-optic rotation sensor
07/12/1988	US4756088 Instruments for monitoring the direction of a borehole
07/05/1988	US4755057 Path length control method for ring laser gyroscope
07/05/1988	US4755051 Vibrating optical fiber accelerometer and gyroscope
07/05/1988	US4755021 Self-aligning optical fiber directional coupler and fiber-ring optical rotation sensor using same
07/05/1988	CA1238970A1 Fiber-optic gyro
06/1988
06/30/1988	WO1988004847A1 Mirror assembly for lasers
06/30/1988	WO1988004767A2 Dither signal remover for a dithered ring laser angular rate sensor
06/28/1988	US4754494 Beryllium based, wear-resistant material for bearings and the like
06/28/1988	US4753506 Off axis optical communication system
06/22/1988	EP0271601A1 Synchronous demodulator with digital output
06/16/1988	WO1988004364A1 Gyroscopic thrust apparatus
06/16/1988	WO1988004363A1 Gyroscopic apparatus
06/15/1988	EP0270635A1 A gyrostabilized deflection device.
06/15/1988	CN87106047A Abaxial optical communication system
06/14/1988	US4751718 Dither suspension mechanism for a ring laser angular rate sensor
06/14/1988	US4751444 DC motor system with AC auxiliary system
06/14/1988	US4750364 Angular velocity and acceleration sensor
06/08/1988	EP0270346A1 Solid state lasers with spherical resonators
06/07/1988	US4749157 Spacecraft accelerometer auto-alignment
06/07/1988	CA1237762A1 Multiple ring laser gyro power supply
05/1988
05/25/1988	EP0268444A2 Integrated optics ring resonator
05/25/1988	EP0157845B1 Apparatus and method for locating an object
05/18/1988	EP0267672A2 Mirrors of polarization sensitive reflectivity
05/11/1988	EP0266942A2 Ring laser gyroscope with geometrically induced bias
05/10/1988	US4743116 Microbending optical fiber accelerometer and gyroscope
05/10/1988	US4743115 Method of coiling an optical fiber gyroscope and an optical fiber coil thus obtained
05/05/1988	WO1988003258A1 Path length control mechanization for a ring laser angular rate sensor
05/04/1988	EP0266249A1 Three-axes optical-fibre ring interferometer
05/03/1988	CA1236204A1 Dither controller for ring laser angular rotation sensor
04/1988
04/26/1988	US4740085 Scale factor stability control
04/26/1988	US4740083 Pathlength controller for ring laser gyroscope
04/26/1988	CA1235788A1 Acoustic gyrometer
04/20/1988	EP0263998A2 Apparatus for measuring roll or roll angle rate
04/20/1988	CN87105637A Automatic calibration for accelerometer of spacecraft
04/19/1988	CA1235469A1 Method and apparatus for reducing quantization errors in laser gyro test data through high speed filtering
04/12/1988	US4737005 Method for eliminating birefringence in a fiber optic coupler and a coupler polarization corrector
04/07/1988	WO1988002474A1 Optical wavelength monitor
04/07/1988	DE3632730A1 Optical-fibre reel for a fibre-optic measuring device
04/06/1988	EP0262825A2 Fiber optic rotation sensor utilizing high birefringence fiber and having reduced intensity type phase errors
04/05/1988	US4735506 Phase nulling optical gyroscope
04/05/1988	CA1234705A1 Angular velocity sensor
03/1988
03/29/1988	US4734863 Apparatus for generating a heading signal for a land vehicle
03/29/1988	US4733966 In an inertial navigation system
03/29/1988	US4733839 Nonorthogonal gimbal
03/24/1988	WO1988002103A1 Low cost ring laser angular rate sensor
03/23/1988	EP0260885A2 Dual fiber optic gyroscope
03/23/1988	EP0242396A4 Synchronous fm digital detector.
03/16/1988	EP0259509A1 Method for measuring rotation speed and rotation speed sensor provided with a fibre-optical Sagnac interferometer
03/10/1988	WO1988001752A1 Off axis optical communication system
03/09/1988	EP0259074A2 Signal processing circuits
03/08/1988	US4729620 Fiber optic frequency shifter

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