Scanning Measuring Device With Thermally Neutral Axis

A technology of measuring device and axis of rotation, applied in the direction of measuring device, active optical measuring device, bearing/suspension of movable parts of measuring device, etc., can solve the problems of multi-part and overall space, large power demand, inaccurate measurement results, etc. , to achieve the effect of high rigidity and large load bearing capacity

Active Publication Date: 2016-11-02
LEICA GEOSYSTEMS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These conventional mounts are complex in planning and construction, require more part and overall space, and do not provide optimal rigidity
[0008] Varying the preload over the operating temperature range is not desirable because measurements become inaccurate

Method used

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  • Scanning Measuring Device With Thermally Neutral Axis
  • Scanning Measuring Device With Thermally Neutral Axis
  • Scanning Measuring Device With Thermally Neutral Axis

Examples

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Example Embodiment

[0033] figure 1 An embodiment of the measuring device 1 according to the present invention is shown, that is, a laser scanner that has a fast-rotating horizontal axis H for emitting laser beams, and has a slow 360° rotatability for the environment. The vertical axis V. The measuring device 1 also has: a housing 2 mounted on the base 3 so that the housing 2 can rotate around the base axis V; and a beam deflection unit 11, the beam deflection unit 11 is mounted on the housing via the shaft 4 In the body 2, the beam deflection unit 11 can rotate around the rotation axis H. Positioned in the housing 2 is a beam sending and beam receiving unit, which is combined into one unit 5 in the example shown. Here, the transmission beam 9 is emitted onto the beam deflection unit 11 and sent out into the environment via the beam deflection unit 11. The reflected receiving beam 10 is deflected back onto the beam receiving unit 5 in the same way. In order to make the transmitting beam 9 leave...

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PUM

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Abstract

A scanning measuring device, in particular a laser scanner, profiler, total station or tracker, comprising at least a base for the placement of the device, a housing mounted on the base, a shaft mounted in the housing such that it can rotate about an axis of rotation and bearing a beam deflection unit in a rotationally fixed manner, a beam generating unit, which generates a transmitted beam which is transmitted into the environment by the beam deflection unit, a beam receiving unit, which receives a received beam reflected from the environment, a controllable positioning means which drives the shaft, wherein the shaft is supported by at least one pair of angular contact rolling bearings set in an O arrangement, and the angular contact rolling bearings are arranged on the shaft such that the rolling contact lines of the associated angular contact rolling bearings meet substantially on the axis of rotation.

Description

technical field [0001] The invention relates to a scanning measuring device. Background technique [0002] In order to detect objects or surfaces, methods are often used which gradually scan the topography of structures such as buildings and record said topography in the process. In this case, such a topography constitutes a series of points which are consistent and describe the surface of the object or describe the corresponding model or describe the surface. The familiar method is scanning with the aid of a laser scanner, which in each case detects the physical position of the surface point: the distance to the target surface point is measured by the laser and this measurement is associated with angular information about the laser shot . From this distance and angle information, the physical positions of the respectively detected points can be determined and the surface can be continuously measured. Parallel to this purely geometric detection of the surface in many case...

Claims

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Application Information

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IPC IPC(8): G01B11/24G01B21/20
CPCG01B11/24G01B21/20F16C19/163G01C15/002G01S17/66F16C19/548G01S17/42G01S7/4817F16C2240/34F16C2370/00G01D5/26G01D11/02
Inventor K·贝罗伊特K·H·普兰杰尔
Owner LEICA GEOSYSTEMS AG
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