A method for correcting the infinite distance distance in the outer field of the theodolite

A theodolite, long-distance technology, applied in the field of photoelectric measurement and control, can solve problems such as focusing errors, and achieve the effect of ensuring the accuracy of focusing

Inactive Publication Date: 2017-09-12
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for correcting the infinite distance in the field of theodolite, which solves the technical problem that there is a large error in the field focusing of large and medium-sized theodolites in the prior art

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  • A method for correcting the infinite distance distance in the outer field of the theodolite
  • A method for correcting the infinite distance distance in the outer field of the theodolite
  • A method for correcting the infinite distance distance in the outer field of the theodolite

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Embodiment Construction

[0016] The present invention will be further elaborated below in conjunction with the accompanying drawings.

[0017] See attached figure 1 And attached figure 2 , a kind of theodolite external field infinite distance correction method of the present invention:

[0018] Step 1: self-calibrating the self-collimating collimator 3 by using a high-precision plane mirror 2;

[0019] The high-precision plane mirror 2 is placed along the direction of the optical axis of the self-collimating collimator 3, the mirror surface of the high-precision plane mirror 2 is parallel to the optical axis of the self-collimating collimator 3, and the reticle on the self-collimating collimator 3 can be positioned along the Move in the direction of the optical axis of the self-collimating collimator 3, and adjust the position of the reticle until the return image of the high-precision flat mirror 2 on the reticle reaches the clearest, that is, the self-calibration of the self-collimating collimato...

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Abstract

The invention discloses a method for correcting the infinite distance in the field of theodolite, which solves the technical problem of relatively large errors in the field focusing of large and medium-sized theodolites in the prior art; Self-calibration of the tube: place the plane mirror along the optical axis of the self-collimating collimator, the mirror surface is perpendicular to the optical axis of the self-collimating collimator, adjust the position of the reticle on the self-collimating collimator until the reticle The return image of the upper plane mirror is the clearest; Step 2: Use the calibrated autocollimated collimator as the infinity distance reference, and perform infinite distance correction on the theodolite focusing system: the optical axis of the theodolite and the autocollimated collimator The direction of the optical axis is parallel, and the light aperture of the theodolite corresponds to the light aperture of the self-collimating collimator. Observe the image of the reticle through the optical system of the theodolite, and adjust the position of the focusing component on the theodolite until the The scratch board image is the clearest.

Description

technical field [0001] The invention belongs to the field of photoelectric measurement and control, and in particular relates to a method for correcting the infinite distance in the outer field of a theodolite. Background technique [0002] At present, for the focusing of large and medium-sized theodolites, a combination of distance focusing and temperature focusing is mostly used. There are many factors that affect the accuracy of temperature focusing, including the non-uniform linear expansion coefficient due to the diversity of composite structure materials, the uneven influence of temperature on different layers, and the difficulty in determining the position of the temperature sensor. Furthermore, there is a large error in the temperature focusing zero point obtained through theoretical calculation. Contents of the invention [0003] The object of the present invention is to provide a method for correcting the infinite distance in the field of theodolite, which solve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C25/00
CPCG01C25/00
Inventor 唐杰蔡盛
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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