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Calibration method for measuring and calibration of vertical line offset of electronic level

An electronic level and calibration method technology, applied in the direction of instruments, measuring devices, etc., can solve the problems of normal measurement, troublesome maintenance, and the inability of electronic level to accurately target the coding scale, so as to improve the on-site adjustment ability and work efficiency, and accurately Accurate and ensure the effect of correct use

Active Publication Date: 2022-08-02
DALIAN SENBIOR SURVEYING INSTR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the observation distance is relatively short, it has little effect on the aiming of the electronic level. When the observation distance is long, if the surveyor still conducts aiming according to the vertical marking of the reticle, the electronic level cannot be accurately aimed. Encoding the ruler and not measuring normally
Since the vertical marking on the reticle plate of the level is fixed, if it is returned to the factory for maintenance, only the position of the electronic readout (CCD) can be adjusted, which not only troubles maintenance but also affects the working efficiency of the measuring unit

Method used

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  • Calibration method for measuring and calibration of vertical line offset of electronic level
  • Calibration method for measuring and calibration of vertical line offset of electronic level
  • Calibration method for measuring and calibration of vertical line offset of electronic level

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Embodiment

[0015] The electronic level sighting vertical line offset measurement and calibration method of the present invention includes an electronic level, and the structure of the electronic level is as follows: figure 1 , 2 Shown: there is a housing 1, in which there is an objective lens 2, a focusing lens 3, an automatic horizontal line of sight compensator 4, a beam splitter 5, and an electronic reader 6 (that is, the CCD image decoding device used in conjunction with the coding level scale). A reading device), a reticle reticle 7, an electronic eyepiece 8, and a display control terminal 9 and a level 10 are also provided on the housing 1. The display control terminal 9 is composed of a display screen and buttons, and is provided with The same coding scale 11; follow these steps in turn:

[0016] a. According to the method of the prior art, use the auxiliary tripod to place the electronic level and the coding ruler 11 at two points on the ground, level the electronic level, make ...

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Abstract

The invention discloses a method for measuring and calibrating the offset of an electronic level sighting vertical line. Offset, and use mechanical or electronic methods to calibrate the center line of the vertical sensing reading of the electronic reader, and use the calibrated vertical sensing reading center line of the electronic reader to align the center position of the coding scale to realize the electronic level. The precise aiming ensures the correct use of the electronic level, and improves the on-site adjustment ability and work efficiency of the surveyor.

Description

technical field [0001] The invention relates to a level calibration method in the field of geodetic surveying and engineering surveying, in particular to a calibration method for measuring and calibrating the vertical line offset of an electronic level. Background technique [0002] The existing leveling device is composed of a level and two levels. The electronic level is composed of objective lens, focusing lens, automatic horizontal sight compensator, beam splitter, reticle, electronic eyepiece, electronic reader and display and control terminal. When measuring, first place the two leveling rods vertically at points A and B on the ground, and then set the leveling instrument at the middle position of the two points A and B. After leveling, use the sight axis of the telescope of the leveling instrument (that is, the intersection of the crosshair and the point B). The horizontal line of sight provided by the optical center of the objective) is aimed at reading the elevatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C25/00
CPCG01C25/00
Inventor 刘雁春
Owner DALIAN SENBIOR SURVEYING INSTR TECH CO LTD
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