Light path building method

Abstract

The invention belongs to the technical field of measurement and positioning, and particularly relates to a light path building method which comprises the following steps: after building a laser tracker and building a coordinate system, arranging two target bases at intervals in the extension direction of a light path, placing target balls on the target bases, and adjusting the positions and postures of corresponding adjusting mechanisms, so that the measured coordinates of the target balls are consistent with the calculated theoretical coordinates; maintaining the posture of the adjusting mechanism, then replacing the target ball with the target, installing the light source, adjusting the installation base body of the light source so that the emergent light of the light source can pass through the ball center of the target installed on the two target bases, and the emergent light of the light source is the target light path. The light path building operation is simple, and the simulation light path of any linear target light beam line can be quickly built with high precision. Besides, in the application process, the light path can be re-checked only by placing the target on the target base again, the re-checking operation of the light path is simple and convenient, and the installation precision of the optical component assembled based on the simulated light path can be greatly improved.

Description

technical field [0001] The invention belongs to the technical field of measurement and positioning, and in particular relates to a method for building an optical path. Background technique [0002] Laser tracker is widely used in the global calibration of multi-sensor 3D vision measurement system due to its high measurement accuracy, large working range, simple operation and portability. The laser emitted by the laser tracker tracking head is received by the target ball and reflected back to the tracking head. Through data processing, the relationship between the position of the target ball and the tracking head can be accurately measured. When using a laser tracker for calibration or measurement, it is usually necessary to establish a three-dimensional space coordinate system first, then place the target ball in the experimental field, and read the three-dimensional coordinates of the mirror center of the target ball under the aforementioned three-dimensional space coordina...

AI Technical Summary

Problems solved by technology

[0003] Chinese patent CN211515569U discloses a mobile dotting device. Its specification discloses the use of a laser tracker to track the three-dimensional space coordinate system of the device center reference point component through the target ball, thereby simulating and depicting the center line of the virtual device. This center line is a software Virtual, unrecognizable to the naked eye by field workers

This method can achieve precise positioning and marking in the geodetic horizontal coordinate system. However, when the beamline system of the instrument is deflected from the geodetic horizontal coordinate system, and there is no reference point that is consistent with the beamline system, it can be used to construct the beamline system. coordinate system, it is difficult to locate each component with a laser tracker that constructs a geodetic coordinate system, especially in the case of a small installation space for instrument positioning, it is even more difficult to rely on calculations to ensure calibration accuracy, which will directly affect the installation and commissioning of the instrument precision

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