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)
05/1994
05/03/1994US5309218 Gas ring laser gyroscopes
05/03/1994CA1329251C Optical fibre measuring device, gyrometer, central navigation and stabilizing system
04/1994
04/28/1994WO1994009537A1 Gas discharge device current control circuit
04/20/1994EP0593166A1 Apparatus for measuring rotation rates
04/20/1994EP0592987A1 Vibratory gyroscope
04/19/1994US5305087 For measuring a physical quantity
04/19/1994US5305086 Two step demodulation synchronous detector
04/19/1994US5305085 Radio frequency excited ring laser gyroscope with common induction coil
04/19/1994US5303588 Sensor for determining angular velocity
04/14/1994WO1994008245A1 Ferroelectric thin film travelling wave rotation sensor
04/14/1994WO1994008206A1 Triangular dither drive apparatus for a ring laser gyroscope
04/14/1994WO1994005973A3 Laser gyro high voltage start module
04/14/1994DE4334736A1 Angular velocity sensor using tuning-fork vibrator and piezoelements - detects Coriolis force setting square prongs in vibration at right angles to direction of their piezoelectric excitation
04/13/1994EP0592321A1 Gyroscope with coplanar excitation and detection
04/13/1994EP0592171A1 Method of and apparatus for compensating for material instabilities in piezoelectric materials
04/13/1994EP0592114A2 Optical fiber type polarizer
04/13/1994EP0460089B1 A sensor element intended for a gyro
04/12/1994US5301884 Automatic fiber optic quadrupole coil winding machine
04/07/1994DE4231935C1 Laser gyroscope system using graduated disc read=out + - uses computer interpolation for calculating rotation corrected for disc inaccuracy
03/1994
03/30/1994EP0498842B1 Dither signal remover for a dithered ring laser gyro
03/30/1994CN1084635A Automatic north-seeking instrument and its monitoring method
03/29/1994US5299211 Laser gyro high voltage start module and high voltage pulse generator
03/29/1994CA2012788C Fiber optic gyro
03/22/1994US5297028 Method and apparatus for correcting drift errors in an angular rate sensor
03/22/1994US5296912 RFOG rotation rate error reducer having resonator mode symmetrization
03/22/1994US5296855 Offset correction apparatus of turning angular velocity sensor
03/22/1994CA1328001C Device for drift compensation in a gyrostabilized panoramic telescope
03/17/1994WO1994005973A2 Laser gyro high voltage start module
03/17/1994WO1994005972A1 Earth/gyro power transducer
03/17/1994CA2143740A1 Earth/gyro power transducer
03/17/1994CA2140435A1 Laser gyro high voltage start module and high voltage pulse generator
03/16/1994EP0587202A2 Fiber optic gyro
03/16/1994EP0586437A1 Improvements in or relating to gyroscopic devices.
03/15/1994US5294972 Multi-axis fiber optic rotation rate sensor with parallel sensing coils
03/15/1994US5293779 Detecting circuit for detecting an abnormal state in a vibrating gyroscope
03/11/1994CA2105785A1 Optical fiber type polarizer
03/09/1994EP0586242A1 Fiber-optic gyroscope
03/09/1994EP0585954A1 Optical fiber gyroscope
03/09/1994EP0585785A1 Vibratory gyroscope
03/08/1994US5293439 Substrate of lithium niobium oxide or lithium tantalum oxide
03/03/1994WO1994004889A1 Laser gyro microprocessor start up control method and apparatus
03/03/1994DE4228795A1 Rotation rate sensor formed from silicon@ wafer - has axis of vibration perpendicular to surface of wafer, and accelerometer perpendicular to vibration axis
03/02/1994EP0584798A1 Driving circuit for gyroscope
02/1994
02/23/1994EP0583746A1 Indication arrangement for an inflation assembly, especially for a container or a float of a rescue apparatus
02/23/1994EP0583541A1 Enclosure for optical fibre
02/22/1994US5289259 Apparatus for extracting a variable from two quadrature signals being functions of the variable
02/22/1994US5289258 Fiber optic gyroscope modulation error reduction
02/22/1994US5289257 Signal processing apparatus for optical gyro
02/22/1994US5287745 Angular speed measuring device
02/22/1994US5287628 Omni range inclino-compass
02/16/1994EP0491909B1 Stationary wave interpolator
02/16/1994CN1082189A Dual-axle angular-rate electric gyroscope with dynamic base and self-zeroing
02/15/1994US5287033 Vibrating surface gyroscopes
02/15/1994US5285686 Coliolis rate sensor using tunnel-effect displacement sensor
02/15/1994CA2028943C Fiber optic gyro
02/10/1994DE4234026C1 Inertial measurement unit for missile or projectile - aligns optical rotation sensor axis with drift axis of two=axis mechanical gyroscope and with axis of high acceleration of launch
02/08/1994US5285257 Optic rotation sensing apparatus and related method including providing synchronous detection at a phase at which the AM noise is minimized
02/08/1994US5284059 Rotation sensor
02/03/1994WO1994002809A1 Trimming of fiber optic winding
02/03/1994WO1994002808A1 Laser gyro microprocessor configuration and control
02/02/1994EP0581407A1 Rate sensor with ring resonator having electromagnetic drive and electrostatic pick off
02/01/1994US5283754 Procedure for measuring angles between reference directions by means of a gyro
02/01/1994US5283627 System for inhibiting quenching of laser beams in response to radiation events
02/01/1994US5283626 Fiber optic gyroscope bias modulation amplitude determination with reset means
02/01/1994CA1326712C Gas rate sensor
01/1994
01/26/1994EP0580090A1 Phase nulling optical gyro
01/26/1994EP0579974A1 Drift suppressing circuit of gyroscope
01/26/1994EP0579905A2 Fiber optic depolariser
01/26/1994CN1023620C North finding ayro
01/25/1994US5281901 Downward compatible AGV system and methods
01/25/1994CA1326558C Gas rate sensor system
01/20/1994WO1994001739A1 Aiming and pointing system for ground based weapons equipment
01/20/1994DE4223740A1 Combined phase modulator and depolariser for counter-propagating wave optical fibre gyroscope - splices polarisation-maintaining fibre, located on piezoelectric cylinder, to monomode fibre coil, such that main axes of fibres are rotated by forty-five degrees w.r.t. each other
01/20/1994DE4223349A1 Angular speed sensor e.g. for vehicle - has sensors of partial silicon structure, arranged on rotating plate, for measuring forces occurring in two further orthogonal axes
01/18/1994US5280339 Closed loop fiber optic gyroscope with fine angle resolution
01/12/1994EP0578519A1 Vibrating beam gyroscopic measuring apparatus
01/12/1994EP0577897A1 Fiber-optic gyroscope
01/11/1994US5278631 Closed loop fiber optic gyroscope with signal processing arrangement for improved performance
01/11/1994US5278424 Apparatus and method for correcting an offset value contained in an output of a turning angular velocity sensor
01/11/1994CA1325904C Method of correcting zero point of gyro and apparatus therefor
01/11/1994CA1325903C Gyroscope system
01/06/1994WO1994000736A1 Waveguide configuration for an integrated optic gyro
01/06/1994WO1994000735A1 Integrated optic gyro with one bragg transducer
01/05/1994EP0577030A1 Multiple readout signal processing system for ring laser gyro
01/04/1994US5275047 Rotation rate sensor
12/1993
12/28/1993USRE34490 Compact, integral, 6-mirror, triaxial, laser rate gyro
12/28/1993US5274232 Method and apparatus for manipulating atoms, ions or molecules and for measuring physical quantities using stimulated raman transitions
12/28/1993US5274231 Method and apparatus for manipulating atoms, ions or molecules and for measuring physical quantities using stimulated Raman transitions
12/28/1993US5272922 Vibrating element angular rate sensor system and north seeking gyroscope embodiment thereof
12/28/1993US5272815 Gyro compass
12/23/1993DE4220010A1 Optical polariser, e.g. for optical fibre laser gyro - has partially flattened sections separated by unflattened, curved sections
12/21/1993US5272516 Fiber optic rotation sensor including a temperature sensor and logic circuit storing at least two correlation maps
12/16/1993DE2954637C2 Low cost north seeking gyro
12/15/1993EP0574143A1 Angular rate sensor and method of production thereof
12/15/1993EP0573857A1 Brillouin ring laser gyroscope
12/14/1993US5271027 Gas discharge device current control circuit
12/14/1993US5270960 Temperature compensation device for an angular velocity sensor
12/14/1993US5270959 Bias correction apparatus of gyro
12/14/1993US5270791 Fibre optic measuring device, rate gyro, stabilization system and magnetic field or current sensor
12/14/1993US5270607 Vibration control apparatus