| 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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| 06/15/2011 | CN101699223B Calibration device of binocular vision navigation system of lunar surface vehicle |
| 06/09/2011 | WO2011068675A2 System and method for using an optical isolator in laser testing |
| 06/09/2011 | CA2777851A1 System and method for using an optical isolator in laser testing |
| 06/08/2011 | EP2330382A2 Method and system for latitude adaptive navigation quality estimation |
| 06/08/2011 | CN102087117A Ground measurement method for accuracy of distance measurement sensor for rendezvous and docking of airships |
| 06/08/2011 | CN101639363B Alignment device redirector |
| 06/07/2011 | US7956329 Flame detector and a method |
| 06/01/2011 | CN201852570U Laser range finder with external calibration scale |
| 06/01/2011 | CN102080969A Apparatus for rapidly correcting installation position of panoramic vision measuring system |
| 06/01/2011 | CN102080968A Precision approach path indicator field testing instrument |
| 06/01/2011 | CN102080967A Method and device for measuring ascending and descending speeds of inertial navigation system |
| 05/25/2011 | EP2223047B1 Method for independent alignment of an inertial unit for an onboard instrument of an aircraft |
| 05/25/2011 | CN101445156B Technology for integrating intelligent aerial robotic system |
| 05/19/2011 | US20110113853 Method for calibrating a rotational angle sensor |
| 05/18/2011 | EP2321619A1 Multi-camera system and method for the calibration thereof |
| 05/18/2011 | CN201837399U Automatic calibrating device for inclinometer |
| 05/18/2011 | CN201837391U Laser leveling instrument |
| 05/18/2011 | CN201837389U Distribution system applicable to DMC (Digital Mapping Camera) digital photogrammetry |
| 05/18/2011 | CN102062611A Leveling instrument measurement error reducing method |
| 05/18/2011 | CN102062597A Porro prism azimuth reference measuring instrument |
| 05/12/2011 | DE112009001466T5 Neigungsmesser-Messsystem und Verfahren zur Korrektur von bewegungsinduzierten Beschleunigungsfehlern Inclinometer measurement system and method for correcting motion-induced acceleration errors |
| 05/11/2011 | EP2320195A1 Calibration method of and calibration device for a MEMS sensor of a microcircuit board in a portable electronic device |
| 05/11/2011 | CN201828276U Small two-axis turntable based on stepping motors |
| 05/11/2011 | CN101545790B System for testing rotation and vibration performance of inertia device |
| 05/05/2011 | WO2011050395A1 A method of calibrating inertial sensors |
| 05/05/2011 | CA2765095A1 A method of calibrating inertial sensors |
| 05/04/2011 | CN102042823A Inclination angle measuring device and measuring method thereof |
| 05/04/2011 | CN101458095B Forward gain estimating system suitable for complete-digital closed-loop optical fiber gyroscope |
| 05/03/2011 | US7937237 Method for recognizing a sensor type |
| 05/03/2011 | CA2455581C Downhole calibration system for directional sensors |
| 04/28/2011 | WO2011050247A1 Navigational system initialization system, process, and arrangement |
| 04/28/2011 | US20110098958 Azimuth computing device, azimuth computing method, azimuth computing program, and electronic device |
| 04/27/2011 | CN201808672U Portable earth simulator |
| 04/27/2011 | CN102032922A Inertial-navigation quick and initial alignment method under robust optimal significance |
| 04/27/2011 | CN102032921A Automatic calibration method for inclinometer |
| 04/27/2011 | CN102032920A Device and method for calibrating plumb aligner |
| 04/27/2011 | CN102032919A Interference type all-optical fiber gyroscope for inhibiting zero drift |
| 04/27/2011 | CN102032918A Method for calibrating direction of three-probe start sensor |
| 04/27/2011 | CN101672657B Fault determination method based on redundancy inertial measurement information |
| 04/26/2011 | US7933733 Attribute sensing processes |
| 04/21/2011 | WO2011045032A1 A method of detecting parasitic movements while aligning an inertial unit |
| 04/21/2011 | US20110088448 Instrument for calibrating an altimetric device |
| 04/20/2011 | CN201803731U 星敏感器标定设备 Star sensor calibration equipment |
| 04/20/2011 | CN201803730U Optical fiber gyro signal debugging closed loop system |
| 04/20/2011 | CN201803724U Laser levelling instrument |
| 04/20/2011 | CN102022999A Method for improving transit stadia surveying range and precision |
| 04/20/2011 | CN101699222B Star sensor calibrator and method for calibrating high-precision star sensor |
| 04/20/2011 | CN101424543B Measuring set and method of gyroscope phase response |
| 04/20/2011 | CN101419080B Mini quick-connecting inertia measurement system zero speed correcting method |
| 04/20/2011 | CN101241015B Temperature drift emendation method and its system |
| 04/14/2011 | WO2011042290A1 Optical distance measuring device with calibration device |
| 04/13/2011 | CN102012237A Method for testing dynamic lock area of prismatic laser gyro |
| 04/13/2011 | CN102012236A Method for calibrating moon rover binocular vision obstacle avoidance system |
| 04/13/2011 | CN101263363B Method for operating a vibrating gyroscope and sensor arrangement |
| 04/07/2011 | WO2011039028A1 Method for calibrating a tilt sensor |
| 04/06/2011 | EP2306149A1 Systems and methods for gyroscope calibration |
| 04/06/2011 | CN201787956U Tridimensional calibration device for digital photography measuring sensor |
| 04/06/2011 | CN201787955U Aligning and correcting device for lower laser of checking table of geodetic surveying and mapping instrument |
| 04/06/2011 | CN201787938U Levelness measuring system for construction equipment |
| 04/06/2011 | CN102003969A Automatic calibration device for clinometer |
| 04/06/2011 | CN102003968A Single-axle table calibration method for fiber optic gyro strapdown inertial navigation system |
| 04/06/2011 | CN102003967A Compass principle-based strapdown inertial navigation bearing alignment method for rotary ship |
| 04/05/2011 | US7920982 Optical distortion calibration for electro-optical sensors |
| 03/30/2011 | CN101995236A System and method for correcting reference value of pressure conversion altitude |
| 03/24/2011 | US20110067479 System and method for calibrating a rotary absolute position sensor |
| 03/23/2011 | EP2299241A2 Cellular phone having navigation device, correcting value initializing method, and navigation function |
| 03/17/2011 | US20110066395 Systems and methods for gyroscope calibration |
| 03/17/2011 | US20110066392 Systems and methods for calibration of gyroscopes and a magnetic compass |
| 03/16/2011 | EP2295989A1 Velocity calculating device, velocity calculating method, and navigation device |
| 03/10/2011 | US20110058828 Length measurement apparatus and image forming apparatus |
| 03/09/2011 | EP2291607A1 Instrument for calibrating an altimeter device |
| 02/23/2011 | CN101981410A Time synchronization in an image processing circuit |
| 02/16/2011 | EP2284487A1 Information device, imaging apparatus having the same, and method of angle correction of object |
| 02/16/2011 | CN101975872A Method for calibrating zero offset of quartz flexible accelerometer component |
| 02/16/2011 | CN101975588A Global calibration method and device of rigid rod of multisensor vision measurement system |
| 02/16/2011 | CN101975587A Leveling system of laser leveling instrument and debugging method thereof |
| 02/16/2011 | CN101975586A Leveling system of laser leveling device and adjusting method thereof |
| 02/16/2011 | CN101975585A Strap-down inertial navigation system large azimuth misalignment angle initial alignment method based on MRUPF (Multi-resolution Unscented Particle Filter) |
| 02/16/2011 | CN101975584A Open loop measuring method applicable to detection circuit system error of interference optical fiber gyroscope |
| 02/16/2011 | CN101975583A Laser inclinometer |
| 02/15/2011 | US7890283 Malfunction detection system and integrated circuit |
| 02/10/2011 | US20110035172 System and method for determining parameters representing orientation of a solid in movement subject to two vector fields |
| 02/10/2011 | DE102009028072A1 Calibrating method for calibrating step counter fixed at e.g. belt of chronic sick patient for detecting movement of patient, during movement conditions in medical area, involves determining phase angle between for determining signal |
| 02/10/2011 | CA2675065A1 Centralizer apparatus |
| 02/09/2011 | CN201740532U Calibration device of level bar and construction engineering detector set |
| 02/08/2011 | US7885778 Optical detection device, electro-optical device, electronic apparatus, and optical degradation correction method |
| 02/03/2011 | US20110023578 Automated calibration of a surveying instrument |
| 02/03/2011 | DE102008028804B4 Verfahren zur Erzeugung definiert gestörter Funkfelder A method for generating defined disturbed radio fields |
| 02/02/2011 | CN201731886U Fault locator for automobile odometer |
| 02/02/2011 | CN101963513A Alignment method for eliminating lever arm effect error of strapdown inertial navigation system (SINS) of underwater carrier |
| 02/02/2011 | CN101963512A Initial alignment method for marine rotary fiber-optic gyroscope strapdown inertial navigation system |
| 02/02/2011 | CN101963511A X-ray pulse satellite navigation semi-physical simulation system |
| 01/26/2011 | CN201724683U Active light emitting calibration block for video recording |
| 01/26/2011 | CN101960256A Automated calibration of a surveying instrument |
| 01/26/2011 | CN101957215A Turntable and method for testing two axial properties of gyroscope |
| 01/26/2011 | CN101514900B Method for initial alignment of a single-axis rotation strap-down inertial navigation system (SINS) |
| 01/19/2011 | CN101949712A Simple structure for verifying optical gyroscopic effect |
| 01/19/2011 | CN101949711A Device and method for detecting dynamic angle measurement precision of large-sized photoelectric theodolite |
| 01/19/2011 | CN101949710A Rapid online dynamic calibration method for zero offset of GNSS (Global Navigation Satellite System) auxiliary MEMS (Micro Electro Mechanical Systems) inertial sensor |
| 01/18/2011 | US7873488 On-site calibration method and object for chromatic point sensors |