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Multisurface measuring method of double station cooperative type large structural part

A collaborative technology for large structural parts, applied in the direction of measuring devices, instruments, and optical devices, can solve problems that cannot be used for multi-faceted measurement of large structural parts, and achieve the effect of ensuring the same accuracy

Inactive Publication Date: 2010-02-03
CHANGCHUN UNIV OF SCI & TECH
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Problems solved by technology

However, the current maximum cantilever length of the used cantilever lidar is only 5m, which is not yet suitable for multi-faceted measurement of large structural parts such as rail passenger car bodies

Method used

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  • Multisurface measuring method of double station cooperative type large structural part
  • Multisurface measuring method of double station cooperative type large structural part
  • Multisurface measuring method of double station cooperative type large structural part

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Embodiment Construction

[0010] The present invention is specifically realized in the following way: a total station is used to measure the multi-faceted dimensions of a large-scale structural member. See Figure 4 As shown, two total stations are used, and the main total station A is located at the point to be measured P that can be aimed at the side of the large structure 2 1 The position of the secondary total station B is located at a position where it can aim at the point to be measured P2 on the other side of the large structure 2, and the two total stations can aim at each other. The main total station A measures the azimuth angle θ' of the sub total station B, and the sub total station B measures the azimuth angle θ" of the main total station A. Therefore, the main total station A determines the sub total station through aiming. The directional angle θ of instrument B relative to the main total station A, see the following formula:

[0011] θ=θ″-θ′-180° (2)

[0012] The rectangular coordina...

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Abstract

The invention relates to a multisurface measuring method of a double station cooperative type large structural part, belonging to the technical field of photoelectric online detection. The existing single station transferring type measuring method has tedious operation, causes precision loss in the transferring process and causes the decrease of measuring precision. The multisurface measuring method adopts two total station instruments, wherein a main total station instrument is positioned at the position which can aim at a point to be measured at one side of the large structural part; an auxiliary total station instrument is positioned at the position which can aim at a point to be measured at the other side of the large structural part; the two total station instruments can aim mutuallyand determine a directed angle of the auxiliary total station instrument corresponding to the main total station instrument; the main total station instrument measures the point to be measured at oneside of the large structural part, and the auxiliary total station instrument measures the point to be measured at the other side of the large structural part; the measured data is transmitted to a shared computer; and the distance between two points to be measured is calculated by the computer according to measuring software. The multisurface measuring method is used for measuring multisurface size and errors of the large structural part.

Description

technical field [0001] The invention relates to a double-station coordinated multi-faceted measurement method for large-scale structural parts. Background technique [0002] The total station is also called the Electronic Total Station. It is a precision measuring instrument integrating optical, mechanical and electrical technologies. It is composed of electronic angle measurement, electronic ranging, electronic calculation and data storage. Data is collected through manual aiming and point-by-point measurement, and then transmitted through communication cables. To the computer, the computer completes the data processing according to the measurement software, and displays the final measurement result. Establish a Cartesian coordinate system in the total station A, and determine the point to be measured P on the object to be measured, see figure 1 As shown, the azimuth angle α, the pitch angle β, the distance d (slope distance, horizontal distance) and height difference are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/14
Inventor 于正林姜涛谭微曹国华王燕飞
Owner CHANGCHUN UNIV OF SCI & TECH
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