| Patents for G01C 25 - Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass (3,490) |
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| 08/26/2009 | CN101514906A Detecting method for measurement accuracy of angle measuring apparatus |
| 08/26/2009 | CN101514900A Method for initial alignment of a single-axis rotation strap-down inertial navigation system (SINS) |
| 08/26/2009 | CN101514899A Optical fibre gyro strapdown inertial navigation system error inhibiting method based on single-shaft rotation |
| 08/20/2009 | WO2009101338A2 Method and system for validating an inertial platform of a craft |
| 08/20/2009 | US20090210105 Air-ground detection system and method |
| 08/19/2009 | CN101512291A Correction of alignment error of optical instrument |
| 08/19/2009 | CN101509935A Space inertial sensor ground test device |
| 08/19/2009 | CN101509785A Misalignment evaluating method for optical fibre gyro input axis |
| 08/19/2009 | CN101509784A GPS//INS data direct directing precision assessment method |
| 08/19/2009 | CN100529760C Automatic aligning method for metering system of clinical analyzer |
| 08/19/2009 | CN100529663C Method for determining a zero-point error in a vibratory gyroscope |
| 08/13/2009 | US20090204351 Sensor Apparatus |
| 08/13/2009 | US20090204323 Inertial navigation system error correction |
| 08/12/2009 | EP2088396A1 Method and system for validating an inertial unit of a mobile object |
| 08/12/2009 | EP2088043A1 Fail safe test for motion sensors |
| 08/06/2009 | US20090198468 Calibration of Optical Line Shortening Measurements |
| 08/05/2009 | CN101498588A In-orbit monitoring method for 6 freedom change between space three-linear array CCD camera lens |
| 07/30/2009 | DE112007002138T5 Nicht invasive Nachverfolgungseinrichtung und nicht invasives Nachverfolgungsverfahren Non-invasive tracking device and non-invasive Nachverfolgungsverfahren |
| 07/23/2009 | WO2009053562A3 Method for determining the rotation speed of an axisymmetric vibrating sensor and inertial device for implementing said method |
| 07/22/2009 | CN201277864Y Inner orientation element and distortion test instrument |
| 07/22/2009 | CN100516778C Method for calibrating connected MEMS gyro dynamic error |
| 07/22/2009 | CN100516777C GPS/INS combined locating navigation system and testing and correcting method for speed rate thereof |
| 07/16/2009 | DE112006003999T5 Korrektur von Kalibrierungsfehlern in einem optischen Instrument Correction of calibration errors in an optical instrument |
| 07/09/2009 | WO2009083374A1 Method for independent alignment of an inertial unit for an onboard instrument to be mounted e.g. in an aircraft, and onboard instrument using such method |
| 07/09/2009 | WO2009083373A1 Method for independent alignment of an inertial unit for an onboard instrument of an aircraft |
| 07/09/2009 | WO2009063400A3 Orientation measurement of an object |
| 07/09/2009 | CA2745562A1 Method for independent alignment of an inertial unit for an onboard instrument of an aircraft |
| 07/09/2009 | CA2710319A1 Method for stand-alone alignment of an inertial unit for an onboard instrument capable of being mounted in an aircraft, and an onboard instrument being able to use such a method |
| 07/08/2009 | CN100510633C Neural net based temperature compensating optical fibre gyroscope |
| 07/02/2009 | US20090171582 Vehicle navigation system |
| 07/01/2009 | EP2075588A2 Apparatus and method for inspecting sensor module |
| 07/01/2009 | EP1913337B1 Self-calibration for an inertial instrument based on real time bias estimator |
| 06/25/2009 | US20090164166 Method and apparatus for assessing the residual life of a sensor unit |
| 06/25/2009 | US20090164164 Sensor diagnostic apparatus and method thereof |
| 06/24/2009 | CN101464163A Straightness detecting method for platform normal point used for total station instrument check |
| 06/23/2009 | US7552021 Device and method for improving human motor function |
| 06/23/2009 | US7549334 Small angle bias measurement mechanism for MEMS instruments |
| 06/17/2009 | EP1695030B1 Calibration of a surveying instrument |
| 06/17/2009 | CN101458095A Forward gain estimating system suitable for complete-digital closed-loop optical fiber gyroscope |
| 06/17/2009 | CN101458094A Navigation device capable of being corrected by map matched position and method thereof |
| 06/17/2009 | CN100501334C Swing arm type tester for micromechanical gyro |
| 06/10/2009 | CN101451856A Active magnetic suspension axial performance tester |
| 06/09/2009 | US7546215 Method for calibrating a powered seat |
| 06/09/2009 | US7543392 Motion estimation method and system for mobile body |
| 06/04/2009 | US20090144011 One-pass sampling of hierarchically organized sensors |
| 06/03/2009 | EP2065789A1 Operation device control apparatus, operation device control method, information storage medium, and operation device |
| 06/03/2009 | CN100494905C Angle testing and correcting method of GPS/INS combined locating navigation system |
| 06/03/2009 | CN100494904C Level adjusting method for leveler |
| 05/28/2009 | WO2009065945A1 System including two combined instruments and method for aligning said system |
| 05/28/2009 | US20090138234 Impression foam digital scanner |
| 05/28/2009 | US20090133467 Robot Equipped with a Gyro and Gyro Calibration Apparatus, Program, and Method |
| 05/28/2009 | CA2706792A1 System including two combined instruments and method for aligning said system |
| 05/26/2009 | US7539786 Method for simulating cartridge changes in import/export station slots in an automated data storage library |
| 05/26/2009 | US7536797 Spirit level |
| 05/21/2009 | US20090127469 Single-Use External Dosimeters for Use in Radiation Therapies and Related Devices and Computer Program Products |
| 05/21/2009 | US20090127464 Flame detector and a method |
| 05/19/2009 | CA2519726C Method for determining a zero-point error in a vibratory gyroscope |
| 05/13/2009 | CN100487374C Contra rotating positioning mechanism for eliminating dynamic regulating gyroinclinometer inertia device constant value error |
| 05/12/2009 | US7532999 Determining root cause of matching problem and/or fleet measurement precision problem for measurement system |
| 05/12/2009 | US7532991 Magnetic data processing device |
| 05/07/2009 | US20090119050 Surveying instrument |
| 05/07/2009 | US20090113733 Extendable plumb and level measuring device and associated usage method |
| 05/06/2009 | CN201233246Y Collimator optical wedge micrometer |
| 05/06/2009 | CN101424543A Measuring set and method of gyroscope phase response |
| 05/06/2009 | CN101424533A Detuning capacitor compensation process and circuit in MEMS gyroscope capacitor read-out circuit |
| 04/30/2009 | WO2009053562A2 Method for determining the rotation speed of an axisymmetric vibrating sensor and inertial device for implementing said method |
| 04/30/2009 | WO2009024975A3 System and method enabling sensorless actuator |
| 04/30/2009 | WO2004065965A3 Inertial north finder |
| 04/29/2009 | EP2052303A2 Heading reference system with remote-mounted sensor |
| 04/29/2009 | CN101419080A Mini quick-connecting inertia measurement system zero speed correcting method |
| 04/28/2009 | US7526398 Method and apparatus for calibrating gyro-sensor |
| 04/22/2009 | EP1373832A4 Modular altimeter |
| 04/16/2009 | DE102006016591B4 Vorrichtung und Verfahren zum Vermessen eines Navigationsgeräts oder eines Übertragungskanals Apparatus and method for measuring a navigation device or a transmission channel |
| 04/15/2009 | CN101408427A Distributed layer-dividing grade temperature error compensating method of optical fiber gyroscope |
| 04/15/2009 | CN101408425A Method for tracking optical fiber gyroscope eigenfrequency |
| 04/14/2009 | CA2398704C Attitude estimation in tiltable body using modified quaternion data representation |
| 04/09/2009 | US20090093984 Method and apparatus for calibrating gyro-sensor |
| 04/09/2009 | US20090093982 External Optical Modulator With Domain Inversion For Providing Constant Chirp Versus Frequency |
| 04/02/2009 | US20090089001 Self-calibrated azimuth and attitude accuracy enhancing method and system (SAAAEMS) |
| 04/01/2009 | CN201215486Y Horizontal accuracy monitoring, display system for gravity leveling instrument |
| 04/01/2009 | CN101398310A Reversed position test method for optical clinometer |
| 03/26/2009 | WO2009023052A3 Multiple sensor fusion engine |
| 03/25/2009 | CN101393025A AUV combined navigation system non-tracing switch method |
| 03/24/2009 | US7509220 Inclination measurement in process transmitters |
| 03/24/2009 | US7509216 Inertial navigation system error correction |
| 03/19/2009 | US20090076758 System and method for determining range in 3d imaging systems |
| 03/18/2009 | CN101387524A Bias temperature error testing and compensating system suitable for optical fiber gyroscope |
| 03/17/2009 | US7505861 Method for monitoring the installation of a measurement device |
| 03/10/2009 | US7502704 Method for monitoring the pressure of motor vehicle tires |
| 03/04/2009 | CN101377422A Method for calibrating optimum 24 positions of flexible gyroscope static drift error model |
| 03/04/2009 | CN100465579C A laser plane coordinate calibrating device |
| 02/25/2009 | CN100464162C Leveling compensating mechanism in photoelectric measurement instrument |
| 02/24/2009 | US7493793 Breath test simulator |
| 02/18/2009 | EP2026037A2 Navigation system and corresponding method for gyrocompass alignment using dynamically calibrated sensor data and an iterative extended kalman filter |
| 02/10/2009 | US7490016 Method and apparatus for calibrating position of image sensor, and method of detecting position of image sensor |
| 02/05/2009 | US20090037107 Inertial navigation system error correction |
| 02/05/2009 | US20090031782 Calibration and operation of wheel alignment systems |
| 02/03/2009 | US7487058 Generating synthetic workloads to measure power utilization in a computer system |
| 02/03/2009 | US7484815 Brake device of motorcycle |
| 01/27/2009 | US7481109 Inertial measurement system and method with bias cancellation |