Patents for G01C 1 - Measuring angles (3,035)
06/1993
06/29/1993US5222708 Tripod safety collar
06/09/1993CN1021126C Non-dial goniometry method for electronic theodolite
06/01/1993US5216480 Surveying instrument
05/1993
05/18/1993US5212533 Light wave distance meter
04/1993
04/27/1993US5206499 Strapdown stellar sensor and holographic multiple field of view telescope therefor
03/1993
03/23/1993US5196900 Method and sensor for opto-electronic angle measurements
02/1993
02/10/1993EP0403585B1 Surveying instrument with receiver for a satellite position measurement system and process for operating it
01/1993
01/27/1993EP0524533A2 Aiming attachment for a telescopic sight of an optical system
01/26/1993US5181654 Sunshine sensor and air conditioner for vehicle
01/21/1993DE4123449A1 Telescope tube for geodetic instrument - has universal demountable holder for diode laser which can be aligned with telescope optical axis
01/12/1993US5179421 Remote tracking system particularly for moving picture cameras and method
01/05/1993US5177686 Method for determining the position of a space vehicle by means of star acquisition and star identification
11/1992
11/03/1992US5161242 Automated repeating sextant (ARS)
11/03/1992US5159760 Device for aligning a geodetic instrument over a defined position mark
10/1992
10/28/1992CN1018861B Surveying instrument with contactless memory disc
10/27/1992US5159401 Elevation-angle sensing, celestial navigation and surveying
09/1992
09/22/1992CA1307663C Opto-electronic angle measurement system
09/17/1992WO1992015839A1 Apparatus and method for measuring deviation of a reference point from a datum
08/1992
08/26/1992EP0423162B1 Surveying system with an electro-optical total station and a mobile receiver station of a satellite positioning system
08/19/1992EP0499320A1 Arrangement for the determination of the direction of a weak radiation-source and application to stellar observation
08/19/1992EP0499319A1 Method for measuring the precise position of the energy centre of an image spot of a luminous object on a photosensor
08/12/1992EP0308504B1 Response-rationing angle of arrival sensor
07/1992
07/29/1992EP0496568A1 Apparatus for determining the attitude of a celestial body orbiting spacecraft or satellite relative to the celestial body
06/1992
06/23/1992US5124844 Method and apparatus for locating celestial objects
05/1992
05/27/1992DE4138054A1 Automatic sextant system for navigational use - has detector of scale strips on instrument body and measures angle between two objects
05/14/1992WO1992008105A1 Method and device for position measurement
05/06/1992EP0483383A1 Method of tridimensional measuring, reference scale and self-illuminating reference scale for tridimensional measuring
04/1992
04/22/1992EP0481307A2 Surveying method utilizing global positioning system and surveying equipment used to perform this method
04/22/1992EP0481278A1 Method and measuring device for locating points in space
03/1992
03/05/1992WO1992003700A1 Remote tracking system for moving picture cameras and method
02/1992
02/26/1992CN1059030A Rotary orient device of intersection survey system
02/25/1992US5091869 Computer integrated floor plan system
01/1992
01/22/1992EP0466800A1 An arrangement for establishing or defining the position of a measuring point.
01/15/1992EP0465584A1 An arrangement for performing position determination.
01/15/1992CN2093380U Microcomputer-controlled phase shifter type shaft angle encoding device
01/14/1992US5080307 Spacecraft earth-pointing attitude acquisition method
12/1991
12/31/1991US5077557 Surveying instrument with receiver for satellite position-measuring system and method of operation
12/18/1991EP0461394A1 Spacecraft earth-pointing attitude acquisition method
12/10/1991US5072105 Solar radiation detecting device and automobile air-conditioner using the same
11/1991
11/28/1991WO1991018258A1 Method of tridimensional measuring, reference scale and self-illuminating reference scale for tridimensional measuring
11/26/1991US5067245 Instant placement down rod
11/21/1991EP0457200A2 Method for measuring angles and characteristics using a gyroscope
11/21/1991DE4015800A1 Gyroscopic measurement of angles and characteristics of deformation
09/1991
09/03/1991US5044086 Drum screw with measuring drum for a sextant
08/1991
08/14/1991DE4002480A1 Notch and bead sighting system for vehicle - with provision of distance indicators on windscreen
08/13/1991US5038489 Posture measuring instrument
07/1991
07/16/1991US5031327 Apparatus for fine adjustment of a sextant
04/1991
04/24/1991EP0423162A1 Surveying system with an electro-optical total station and a mobile receiver station of a satellite positioning system.
04/04/1991DE3931979A1 Finding geographical position by digital measurement of height of sun - storing digital time of day with digital sun height measurement to ascertain longitude and latitude for navigation
03/1991
03/19/1991US5000585 Apparatus for bearing a shaft
03/13/1991CN2073121U Optical guiding arrangement
03/12/1991US4999483 Sensor for detecting two dimensional angle of incidence of the sun
01/1991
01/30/1991EP0409875A1 Method and sensor for opto-electronic angle measurements.
01/29/1991US4988193 Method and apparatus for measuring incident light angle relative to level
01/29/1991US4988192 Laser theodolite
01/24/1991DE3921122C1 Changing angle measurer for astronomical location - has computer-controlled stepper motor adjusting drum spindle via back-gearing arrangement so that control electronics can measure
01/22/1991US4986255 Apparatus pursuing the sun
12/1990
12/27/1990EP0403585A1 Surveying instrument with receiver for a satellite position measurement system and process for operating it.
12/13/1990DE3926314C1 Arrangement for adjusting sensor reference mirror - includes theodolite having auto-collimation unit on vertical holding plate and liq. holding plate from auto-collimator to reflect light
11/1990
11/27/1990US4972592 Sextant with adjustable handle
11/22/1990EP0397892A1 Method for determining the coordinates of stars for preparation of a star catalogue
11/21/1990CN1047143A Surveying opparatus
11/06/1990US4967479 Position relocation device
10/1990
10/18/1990WO1990012284A1 An arrangement for performing position determination
10/18/1990WO1990012282A1 An arrangement for establishing or defining the position of a measuring point
10/04/1990DE4010117A1 Electronic surveying apparatus e.g. tacheometer or theodolite
10/03/1990CN2063222U Dynamic angle measurer
09/1990
09/26/1990EP0388559A2 Method and apparatus for measuring incident light angle relative to a reference
09/25/1990US4958927 Optical angle measuring instrument
09/04/1990US4953303 Clinometer type apparatus
08/1990
08/09/1990DE3936966A1 Automatic target acquisition, esp. using theodolite - using aperture controlled by opto-electronic sensor signal for simplified measurement without focussing
07/1990
07/17/1990US4942292 Apparatus for following sun light
06/1990
06/14/1990WO1990006491A1 Method for determining the coordinates of stars for preparation of a star catalogue
06/12/1990US4933550 Photodetector system with controllable position-dependent sensitivity
05/1990
05/23/1990EP0369416A2 Apparatus for bearing a shaft
04/1990
04/03/1990US4912853 Reticle plate and method for establishment of a north-oriented or south-oriented line by circumpolar orientation
03/1990
03/28/1990CN1040865A Non-dial goniometry method for electronic theodolite
03/27/1990US4910875 Longitude location device
03/13/1990US4907882 Surveying instrument for automatically taking measurements
01/1990
01/25/1990WO1990000719A1 Surveying system with an electro-optical total station and a mobile receiver station of a satellite positioning system
01/25/1990WO1990000718A1 Surveying instrument with receiver for a satellite position measurement system and process for operating it
01/17/1990EP0350866A1 Photodetector system with controllable position-dependent sensitivity
12/1989
12/26/1989US4888881 Direct height measuring device for surveying instruments
11/1989
11/01/1989CN2047006U Theodolite capable of surveying indined plane
10/1989
10/19/1989WO1989009922A1 Method and sensor for opto-electronic angle measurements
10/17/1989US4874937 Digital sun sensor
08/1989
08/30/1989EP0330465A1 Device for indicating bearings in azimuth and inclination
07/1989
07/27/1989WO1989006783A1 Position measurement system
07/19/1989CN2041420U Ring type vernier dial for theodolite
06/1989
06/21/1989CN2039830U Multi-function level measuring scale
06/20/1989US4840445 System for locating an object in space
03/1989
03/29/1989EP0308504A1 Response-rationing angle of arrival sensor.
03/22/1989CN2034681U Tv theodolite positioner
02/1989
02/22/1989CN2033116U Horizontal angular meter
02/14/1989US4804832 Two directional angle of arrival system
02/06/1989EP0239576A4 Navigation systems.
12/1988
12/21/1988EP0296016A1 System for determining the position of an object within a space
12/14/1988EP0295152A2 Apparatus for following sun light
10/1988
10/20/1988WO1988008142A1 Response-rationing angle of arrival sensor
09/1988
09/07/1988EP0281518A2 Geodetic instrument
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