| 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) |
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| 04/11/1990 | EP0363027A2 Ring resonator gyroscope |
| 04/10/1990 | US4915503 Fiber optic gyroscope with improved bias stability and repeatability and method |
| 04/10/1990 | US4915492 Mirror transducer assembly with selected thermal compensation |
| 04/04/1990 | EP0362172A2 Fibre optical gyro |
| 04/03/1990 | US4913548 Solid state fiber optic semiconductor ring laser gyro apparatus with non-optical readout |
| 03/22/1990 | WO1990002921A1 Passive ring resonator gyro with polarization rotating ring path |
| 03/21/1990 | EP0359666A1 Fibre-optical measuring system, gyrometer, navigation and stabilization system |
| 03/21/1990 | EP0359484A2 Gyroscope control systems |
| 03/14/1990 | EP0358533A2 Means and methods for measuring a parameter |
| 03/14/1990 | EP0358532A2 Means and method for serrodyne driving an integrated optic phase modulator |
| 03/14/1990 | EP0358518A1 Precision 50 percent duty cycle controller |
| 03/14/1990 | EP0358058A1 Caging system |
| 03/13/1990 | CA1266715A1 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 |
| 03/08/1990 | WO1990002311A1 Improved north-seeking process |
| 03/08/1990 | EP0344221A4 A frame assembly and dither drive for a coriolis rate sensor. |
| 03/06/1990 | US4906096 Apparatus and method for phase modulating optical signals in a fiber optic rotation sensor |
| 02/27/1990 | US4904083 For use in a multioscillator gyro |
| 02/27/1990 | US4903531 Acoustic gyrometer |
| 02/21/1990 | EP0354985A2 Bilithic unidirectional ring laser |
| 02/21/1990 | CN2053328U Three-freedom gyroscope |
| 02/20/1990 | US4901565 Strapdown measuring unit for angular velocities |
| 02/15/1990 | DE3926504A1 Schwingungserreger und diesen verwendender schwingkreisel Vibrators and vibrating gyro those used Direction |
| 02/14/1990 | EP0124524B1 Interferometer with kerr effect compensation |
| 02/13/1990 | US4900137 Mirrors |
| 02/13/1990 | US4899955 Angle encoder |
| 02/13/1990 | US4899587 Method for sensing rotation using vibrating piezoelectric elements |
| 02/08/1990 | WO1990001144A1 Redundant laser gyrometers |
| 02/08/1990 | WO1990001143A1 Apparatus for measuring angular velocity |
| 02/07/1990 | CN1006735B Gas driven gyroscope with extended rundown time |
| 02/06/1990 | US4899346 Path length control system for magnetic mirror dithered ring laser gyros |
| 02/06/1990 | US4898469 Dither signal remover for a dithered ring laser angular rate sensor |
| 02/06/1990 | US4898032 Rate sensor |
| 02/06/1990 | US4898031 Vibrational angular velocity sensor |
| 02/01/1990 | DE3825826A1 Gyroscopic devices with communicating liquid-filled vessels for the time-delayed generation of moments |
| 02/01/1990 | DE3825088C1 Sensor for determining angular velocity |
| 01/31/1990 | EP0352300A1 Combination beam combiner and beam emitter for ring laser gyroscope |
| 01/30/1990 | CA1265229A1 Control of a ring laser gyro cavity according to a preselected model |
| 01/24/1990 | EP0243468B1 Signal processor for inertial measurement using coriolis force sensing accelerometer arrangements |
| 01/23/1990 | US4896268 Apparatus and method for processing the output signals of a coriolis rate sensor |
| 01/10/1990 | EP0349961A2 Inertial equipment using fiber optic gyroscope |
| 01/09/1990 | US4891997 Dynamically tuned gyro |
| 01/03/1990 | EP0349158A1 Marine compass rate-of-turn indicator |
| 01/02/1990 | US4890923 Apparatus for superposing two light beams |
| 01/02/1990 | US4890922 Fiber optic rotation sensing system |
| 01/02/1990 | US4890812 Temperature compensated mount for supporting a ring laser gyro |
| 01/02/1990 | CA1264191A1 Ring laser gyroscope curved blade flexure and support ring assembly and method |
| 12/27/1989 | EP0348087A2 Method and apparatus for cancelling vibrations |
| 12/26/1989 | US4890105 Step data processor for 180X and 90X compass synchro data |
| 12/21/1989 | DE3820720A1 Twin-gyro compass with precisely functioning oscillation damping |
| 12/19/1989 | US4888705 System for measuring the position of vibrating object |
| 12/19/1989 | US4888540 Electronic torquer interface and erection control circuit |
| 12/19/1989 | US4887900 Polarization maintaining fiber interferometer and method for source stabilization |
| 12/14/1989 | WO1989012212A1 Apparatus reducing thermal sensitivity of multioscillator |
| 12/13/1989 | EP0346213A2 Enlarged-range measuring device for the non-reciprocal phase shift produced in a ring interferometer, and measuring process |
| 12/12/1989 | US4886364 Ring laser gyroscope beam combiner for separating and combining circulating laser beams for power and fringe pattern detections |
| 12/07/1989 | DE3916768A1 North-seeking gyroscope arrangement |
| 12/06/1989 | EP0344221A1 A frame assembly and dither drive for a coriolis rate sensor |
| 12/05/1989 | US4885475 Precision 50 percent duty cycle controller |
| 12/05/1989 | US4884771 Method for calibrating the gyros of a 3-axis stabilized satellite |
| 12/05/1989 | US4884446 Solid state vibrating gyro |
| 12/05/1989 | CA1263730A1 Frequency locking electromagnetic signals |
| 12/05/1989 | CA1263704A1 Method and apparatus for automatic calibration of magnetic compass |
| 11/30/1989 | WO1989011632A1 Skewed axis inertial sensor assembly |
| 11/29/1989 | EP0343240A1 Synchronous quarter cycle demodulation for an angular rate and linear acceleration sensor based on the Coriolis effect |
| 11/29/1989 | CN1037585A Superconducting gyroscope (stationary state) |
| 11/28/1989 | US4884283 Ring laser gyroscope mirror orientation system and method |
| 11/28/1989 | US4883358 Fiber optic gyro stabilized by harmonic components of detected signal |
| 11/28/1989 | US4883347 Stabilized pointing mirror |
| 11/28/1989 | US4882845 Gyroscopic artificial horizon |
| 11/23/1989 | EP0342230A1 Angular rate sensor having a single dither axis. |
| 11/21/1989 | US4881817 Fiber optic rotation sensor utilizing high birefringence fiber and having reduced intensity type phase errors |
| 11/16/1989 | DE3814830A1 Bearing and drive arrangement |
| 11/14/1989 | US4879918 Gyro compass |
| 11/08/1989 | EP0341055A1 Velocity control system using piezoelectric transducers |
| 11/07/1989 | US4879460 Gyroslabilized optical radiation deflection device providing a stabilized radiation sensitivity lobe |
| 11/07/1989 | EP0324851A4 Angular rate sensor with phase shift correction. |
| 11/02/1989 | WO1989010539A1 Compensated piezoelectric mirror for laser gyrometer |
| 11/02/1989 | WO1989010534A1 Integrated optic interferometric fiber gyroscope module and method |
| 10/31/1989 | US4877311 Laser power monitoring optics for a ring laser gyroscope |
| 10/25/1989 | EP0338023A1 Dither signal remover for a dithered ring laser angular rate sensor. |
| 10/24/1989 | US4875775 Reciprocally switched four modulator system |
| 10/24/1989 | US4875774 Apparatus and method for determining ring laser gyroscope phase at turnaround |
| 10/19/1989 | WO1989009925A1 Scatter symmetrization in multi-mode ring laser gyros |
| 10/18/1989 | EP0337551A1 Radiation coupling device |
| 10/17/1989 | US4874942 Rotation, acceleration, and gravity sensors using quantum-mechanical matter-wave interferometry with neutral atoms and molecules |
| 10/17/1989 | US4874244 Method and apparatus for increasing the unambiguous sensing range in an interferometric fiber gyroscope |
| 10/17/1989 | CA1262308A1 Passive cavity gyro bias eliminator |
| 10/11/1989 | EP0336795A1 Mechanical type composite inertial sensor |
| 10/11/1989 | EP0335895A1 Gyroscopic apparatus |
| 10/10/1989 | US4872754 Constant frequency digital closed-loop optical fiber gyro |
| 10/05/1989 | WO1989009506A1 Broadband optical fiber laser |
| 10/03/1989 | US4871254 Method and device for detecting propagation time variations in a ring interferometer and application thereof to wave length control |
| 10/03/1989 | US4871253 Readout apparatus for a laser angular rate sensor |
| 10/03/1989 | CA1262179A1 Closed loop all fiber optic gyroscope with differential frequency propagation |
| 09/26/1989 | US4870588 Signal processor for inertial measurement using coriolis force sensing accelerometer arrangements |
| 09/26/1989 | US4869592 Method and apparatus for obtaining a digital measure of absolute rotation |
| 09/26/1989 | CA1261449A1 Monomode optical fiber reciprocal ring interometer device |
| 09/26/1989 | CA1261448A1 Monomode optical fiber ring interferometric device |
| 09/26/1989 | CA1261067A1 Signal processor for inertial measurement using coriolis force sensing accelerometer arrangements |
| 09/26/1989 | CA1261044A1 Dither signal remover for a dithered ring laser angular rate sensor |