Electronic level collimation vertical line offset determination calibration method

Abstract

The invention discloses an electronic level collimation vertical line offset determination calibration method. The electronic level collimation vertical line offset determination calibration method comprises the following steps that the offset between a vertical induction reading center line of a figure reading electronic device and a reticule plate vertical marking line is determined by determining left and right limit positions for ensuring the normal reading of an electronic level; the vertical induction reading center line of the figure reading electronic device is calibrated by using a mechanical or electronic method; and the center position of a coding scale is collimated by using the calibrated vertical induction reading center line of the figure reading electronic device. The accurate collimation of the electronic level is achieved, the correct use of the electronic level is ensured, and the on-site adjustment capability and working efficiency of surveyors are improved.

Description

technical field [0001] The invention relates to a leveling instrument calibration method in the fields of geodetic surveying and engineering surveying, in particular to a method for measuring and calibrating the deviation of an electronic leveling instrument's aiming vertical line. Background technique [0002] Existing level measuring device is made up of a level instrument and two level rulers. The electronic level consists of an objective lens, a focusing lens, an automatic horizontal line of sight compensator, a beam splitter, a crosshair reticle, an electronic eyepiece, an electronic readout and a display and control terminal. When measuring, first place the two leveling rods vertically at the two points A and B on the ground, and then set the level at the middle position of the two points A and B, and use the leveling telescope to collimate the axis (that is, the intersection point of the crosshair and the The line of sight provided by the optical center of the object...

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

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