Laser tracker, method of measuring coordinates of a remote point, and coordinate measuring system
A laser tracker and measurement sequence technology, applied in the field of laser trackers, can solve the problem of destroying measurement results
Active Publication Date: 2020-08-18
LEICA GEOSYSTEMS AG
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- Application Information
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Problems solved by technology
On the contrary, a tilt sensor integrated in the movable support can no longer give reliable specifications regarding the vertical direction during the rotational movement of the support, so that for example lateral tilts occurring during the measurement or wobbles of the device due to uneven ground still remain Not recognized, thereby corrupting the measurement results
Method used
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Embodiment Construction
[0085] figure 1 An exemplary embodiment of a coordinate measuring device according to the invention embodied as a laser tracker 1 is shown. The laser tracker 1 shown comprises: a base 40 , a support 20 with a handle 21 attached to the base 40 , and a beam deflecting unit 10 mounted on two struts (not shown here) of the support 20 . The laser tracker 1 is arranged on a tripod 45 and measures the distance to a retroreflector 61 located on a measuring aid 60 by means of measuring radiation 36 , eg a laser beam. The measuring aid 60 (here, for example, embodied as a measuring probe) also comprises a number of target markers 62 (for example, in the form of reflective or self-luminous spots) as well as for placing on the target point of the target object to be measured. Measuring head 63.
[0086] The laser tracker 1 shown comprises a measuring camera embodied as a focusable camera system with variable magnification (vario camera system) for capturing target markings 62 arranged o...
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A laser tracker, a method of measuring coordinates of a remote point, and a coordinate measuring system. The coordinate measuring device includes: a support part fastened to the base and rotated around a first rotation axis; a beam deflection unit fastened to the support part and rotated around a second rotation axis orthogonal to the first rotation axis; a first bearing , the beam deflection unit is rotatably mounted on the support; the second bearing, the support is rotatably mounted on the base, the beam deflection unit includes an optical distance measuring device, which measures the distance to the measuring aid, and the first bearing includes a first angular encoder , the second bearing includes a second angle encoder, a first inclination sensor is provided on the base, including: a second inclination sensor on the support portion, the first and second inclination sensors capture at least two orthogonal directions relative to gravity direction of tilt and output tilt data; the analysis and control unit captures and analyzes the tilt data of the two tilt sensors for self-monitoring and / or self-calibration of the coordinate measuring device.
Description
technical field [0001] The invention relates to a coordinate measuring device for measuring coordinates on a surface of a target object, embodied as a laser tracker. Background technique [0002] A measuring device designed for the progressive tracking of a target point and the determination of the coordinate position of this point can often be summed up as a laser tracker, especially in connection with industrial surveying. In this case, the target point can be represented by a retroreflective unit (for example a cube prism), which is aimed with a measuring beam (in particular a laser beam) of the measuring device. The laser beam is reflected back parallel to the measuring device, wherein the reflected laser beam is captured by a capture unit in the measuring device. The emission or reception direction of the laser beam is ascertained in this case, for example, by means of sensors for angle measurement which are associated with deflection mirrors or targeting units of the ...
Claims
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IPC IPC(8): G01B11/00
CPCG01B21/042G01B11/005G01S17/66
Inventor B·伯克姆D·莫泽S·富克斯
Owner LEICA GEOSYSTEMS AG