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Novel plumb line deviation correction method

A vertical line deviation and vertical line technology, which is applied in the field of vertical line deviation correction during the field test of measurement and control equipment, can solve the problems of time-consuming measurement and difficulty in correcting vertical line deviation, etc., and achieves a small workload and simple and easy-to-understand calculation method , The effect of fast vertical line deviation correction

Pending Publication Date: 2020-08-25
中国人民解放军63660部队
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  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the technical problem that the high-precision measurement of the measurement and control equipment requires the correction of the vertical line deviation to be difficult and the measurement is time-consuming

Method used

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  • Novel plumb line deviation correction method
  • Novel plumb line deviation correction method
  • Novel plumb line deviation correction method

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Experimental program
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Embodiment 1

[0075] A certain type of photoelectric theodolite with a diameter of 650mm, a focal length of 4m, and a field of view of about 0.2°×0.2°. The station coordinates L0=87.60065917, B0=41.69350967, H0=1162.574, measure the azimuth angle A i =60°, measure the pitch angle E i = 30°. Implement the method announced by the present invention as follows:

[0076] (1) Vertical line deviation measurement

[0077] The vertical deviation can be decomposed into ξ and η, and the ξ and η of the point to be measured are measured by astronomical geodetic method:

[0078] ξ=14.4280″: The vertical line deviates from the meridian component (north-south component), and the vertical line deviates northward relative to the normal line, which is positive;

[0079] η=-2.9274″: the vertical deviation component (east-west component), the vertical deviation from the normal to the east is positive.

[0080] (2) Calculation of vertical line deviation

[0081] I——axis deviation of measurement and control ...

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Abstract

The invention belongs to the technical field of photoelectric measurement and provides a novel vertical line deviation correction method. The vertical line deviation parameter of an observation station is utilized and a measured angle parameter is directly corrected to the geodetic coordinate, so that the vertical line deviation correction can be quickly carried out, the calculation method is simple and easy to understand, the deviation correction can be completed only by measuring the vertical line deviation of the to-be-measured area once, complex astronomical and geodetic coordinate conversion is not needed, the efficiency is remarkably improved, and the workload is small.

Description

technical field [0001] The invention belongs to the technical field of photoelectric measurement, and in particular relates to a method for correcting vertical line deviation in the field test process of measurement and control equipment. Background technique [0002] Perpendicular deviation is the angle by which the true gravity vector deviates from the reference direction. According to the definition of the reference direction, there are two ways to define the vertical deviation: the vertical deviation defined with the reference ellipsoid normal as the reference direction is the astro-terrestrial vertical deviation (also known as the Helmert vertical deviation); the normal gravity vector The vertical deviation defined by the direction as the reference direction is the gravitational vertical deviation (also known as the Molodensky vertical deviation). The slight difference between the astronomical geodetic vertical deviation and the gravity vertical deviation is caused by ...

Claims

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Application Information

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IPC IPC(8): G01C25/00
CPCG01C25/00
Inventor 张智香刘德超曹锐李坤坤张众森张丁梧周鑫肖帅
Owner 中国人民解放军63660部队