| Patents for G01C 1 - Measuring angles (3,035) |
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| 06/08/2011 | CN101014829B Geodesic measuring instrument with a piezo drive |
| 06/07/2011 | US7957930 Angle sensing device and angle sensing system |
| 06/02/2011 | US20110128531 Rotation and differential angle optical sensor with short optical sensing array |
| 06/02/2011 | US20110128530 Rotation and differential angle optical sensor with integral bearing races |
| 06/02/2011 | US20110128529 Rotation and differential angle optical sensor with non-transition pattern sampling |
| 06/01/2011 | CN201853794U Base station antenna |
| 06/01/2011 | CN201852569U Horizontal azimuth angle and pitching angle measuring instrument |
| 06/01/2011 | CN102081275A Full-automatic real-time dimming method for transit instrument based on digital images |
| 06/01/2011 | CN101421584B Handheld optical distance measurement device |
| 05/25/2011 | CN102073048A Method with logical judgment for monitoring rectangular high-voltage working area |
| 05/25/2011 | CN102072708A Optics detecting device |
| 05/25/2011 | CN102072695A Measuring device and measuring method for tree |
| 05/18/2011 | CN201837387U Sextant telescope with step holes |
| 05/18/2011 | CN201837386U Rear colored shade bracket for sextant |
| 05/18/2011 | CN201837385U Sextant index mirror device |
| 05/18/2011 | CN201837384U Sextant telescope device |
| 05/18/2011 | CN201837383U Sextant pillow component |
| 05/18/2011 | CN201837382U Sextant telescope angle rule frame |
| 05/18/2011 | CN102062595A Solar tracking angular deviation detector for linear array CCD (Charge Coupled Device) |
| 05/11/2011 | CN201828661U Device for automatically plotting underground tunnel |
| 05/11/2011 | CN102052914A Method calculating navigation direction angle by using sky polarization mode distribution rule |
| 05/11/2011 | CN102052913A Small hole imaging principle-based projector for measuring sun position information |
| 05/11/2011 | CN102052078A Real-time guide system of multi-sensor data fusion shield machine |
| 05/11/2011 | CN101625241B Multifunctional plumb device for building construction |
| 05/05/2011 | US20110102779 Non contact wheel alignment sensor and method |
| 05/04/2011 | CN201819682U Transit support |
| 05/04/2011 | CN201819681U Solar tracking system sensor |
| 05/04/2011 | CN102042827A Multiple-wavelength laser receiver |
| 05/04/2011 | CN101614539B Separation type azimuth angle vertical transmission device |
| 05/04/2011 | CN101592481B Laser internal control vertical section measuring method of high-rise building |
| 04/27/2011 | CN102033689A Mobile terminal and method for displaying information on mobile terminal |
| 04/27/2011 | CN102032894A Correction instrument for derricks in oilfield |
| 04/27/2011 | CN102032893A Hand-held attitude measuring terminal |
| 04/27/2011 | CN102032892A Azimuth angle measurement system and method for operating the same |
| 04/27/2011 | CN102032891A Self-adaptive target device and implementation method thereof |
| 04/27/2011 | CN102032871A Characteristic line-based optical measurement method for position and attitude of moving object |
| 04/26/2011 | US7933008 Positioning a first surface in a pre-determined position relative to a second surface |
| 04/26/2011 | US7930835 Aiming of a geodetic instrument |
| 04/20/2011 | CN201803717U Quasi-continuous distance-variable altimeter |
| 04/20/2011 | CN102023082A Device and method for detecting dynamic properties of two-dimensional directional mirror |
| 04/20/2011 | CN102023051A Method for measuring high frequency micro vibration of triaxial angular displacement of satellite payload |
| 04/20/2011 | CN102022996A Method for resurvey and pit allocation of power transmission lines in mountainous area |
| 04/20/2011 | CN102022995A Method for arranging theodolite by utilizing optical centering device |
| 04/20/2011 | CN102022994A Pit separation method of two-to-one branching tower and two single-circuit angle towers |
| 04/20/2011 | CN102022993A Method for separated pits of single pole tower foundation of circuits |
| 04/19/2011 | US7929125 Gimbaled system with optical coudé path and method transferring data |
| 04/13/2011 | CN201797514U Handheld satellite communication terminal capable of indicating direction of antenna |
| 04/13/2011 | CN201795803U Device for levelly positioning and measuring communication antenna |
| 04/13/2011 | CN201795791U Antenna azimuth angle measuring device |
| 04/13/2011 | CN101592959B System and method for actively tracking solar radiation |
| 04/12/2011 | US7924415 Apparatus and method for a light direction sensor |
| 04/06/2011 | CN201787946U Optical earth measurement equipment |
| 04/06/2011 | CN201787938U Levelness measuring system for construction equipment |
| 04/06/2011 | CN101672641B Optical precision tracking detector based on double four quadrant photoelectric detectors |
| 03/31/2011 | WO2011035497A1 Method and apparatus for measuring roll angle of directional firework projectile |
| 03/30/2011 | CN201780176U Compass orientation device for longhole ground stress testing |
| 03/30/2011 | CN201780106U Adjusting device for vertical alignment of theodolite |
| 03/30/2011 | CN101997450A Self-powered solar tracking probe |
| 03/30/2011 | CN101997449A Sun-tracking detector having wide-angle capturing and precise tracking functions |
| 03/23/2011 | CN101988827A Sun tracking detector |
| 03/18/2011 | CA2679119A1 Gauge for determining angle of sloped ground and method of using same |
| 03/16/2011 | EP2295926A1 Telescopic sight |
| 03/16/2011 | CN101986100A Online monitoring system for galloping and wind deviation of power transmission line lead based on differential global positioning system (GPS) |
| 03/16/2011 | CN101598545B Method for direct measurement of installation error angle of accelerometer of strapdown system |
| 03/15/2011 | US7908113 Method and device for determination of roll angle |
| 03/09/2011 | EP2106533B1 Aiming of a geodetic instrument |
| 03/02/2011 | CN101982798A Reflecting prism capable of measuring at night |
| 03/02/2011 | CN101982732A Micro-satellite attitude determination method based on ESOQPF (estimar of quaternion particle filter ) and UKF (unscented kalman filter) master-slave filtering |
| 02/24/2011 | WO2011002207A3 Rotary bed which can be directed toward the position of the sun |
| 02/23/2011 | CN101980095A Automatic tracking proportional-integral-differential (PID) control system and method for gyrotheodolite to perform coarse north finding |
| 02/23/2011 | CN101523154B Apparatus and method for determining orientation parameters of an elongate object |
| 02/22/2011 | US7893924 Data input device |
| 02/17/2011 | DE102009032758A1 Illumination device for illuminating line pattern on reticle utilized in reticle assembly of binoculars, has LED for generating illumination light, and light-guiding fibers for guiding light from LED to peripheral wall of reticle |
| 02/16/2011 | CN201748917U Wireless optical pilot balloon theodolite |
| 02/16/2011 | CN201748916U Longitude and latitude measuring device based on path of the sun |
| 02/16/2011 | CN201748915U Mechanical pitch angle indicating device of mechanical high-precision antenna |
| 02/16/2011 | CN101975565A GPS-based transmission conductor waving monitoring system and monitoring method |
| 02/16/2011 | CN101598547B Method for measuring mounting inclination angle of one-side-inclined structure |
| 02/16/2011 | CN101583841B Aiming of a geodetic instrument |
| 02/16/2011 | CN101493323B Method for demarcating space bifacial phase angle laser detecting system |
| 02/09/2011 | CN101970985A Determining coordinates of a target in relation to a survey instrument having at least two cameras |
| 02/09/2011 | CN101968656A 一种太阳位置跟踪系统传感器 One kind of sun position tracking system sensors |
| 02/09/2011 | CN101968352A Detection device and detection method of pitch angle of vehicle body |
| 02/09/2011 | CN101968351A Plant leaf motion azimuth angle measurement instrument |
| 02/03/2011 | WO2011014194A1 Beam direction sensor |
| 02/02/2011 | CN201731875U Device of inclinometer for testing azimuth angle of fiber optic gyroscope |
| 02/02/2011 | CN201731874U Transmission line conducting/grounding wire inclination collection device |
| 02/02/2011 | CN201731873U 测角仪 Goniometer |
| 02/02/2011 | CN101965498A Geodetic apparatus and method for controlling it |
| 02/02/2011 | CN101629807B Position and attitude parameter measurement system of machine body of boring machine and method thereof |
| 02/02/2011 | CN101451840B Gyrotheodolite integrated with north and south seeking function and implementing method thereof |
| 01/27/2011 | WO2011010042A1 Method for monitoring movements of ground |
| 01/27/2011 | CA2767498A1 Method for monitoring movements of ground |
| 01/26/2011 | CN201724737U Cassette sensor |
| 01/26/2011 | CN201724736U Shadow sensor |
| 01/26/2011 | CN1538146B 测量机 Measuring Machine |
| 01/26/2011 | CN101957195A Surveying instrument and method of providing survey data of a target region using a surveying instrument |
| 01/25/2011 | US7876430 Laser scanning for mooring robot |
| 01/19/2011 | CN201716016U Total station |
| 01/19/2011 | CN101476337B Automatic monitoring apparatus and method for layered vertical sedimentation and lateral displacement of roadbed |