Quick correction method of image measurement instrument

A technology of image measuring instrument and calibration method, which is applied in the direction of measuring devices, instruments, optical devices, etc., can solve problems such as errors, and achieve the effect of convenient operation

Inactive Publication Date: 2014-07-23
东莞市天勤仪器有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows for quick adjustment by aligning an imaging device with a specialized tool called a reference barometer that measures distance between it's surface points on its own plane. It makes this process faster than traditional methods like straight lines or laser beams because there are no moving parts involved during alignment.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the precision and consistency of image measurements during manufacture or maintenance processes without requiring human intervention. Current solutions involve manually correcting factors that can result in incorrect data readings when recalking them after each measurement process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A quick calibration method for an image measuring instrument, comprising the following steps:

[0028] Place the standard line ruler horizontally on the workbench, and the standard fiber ruler is parallel to the abscissa of the plane where the image measuring instrument workbench is located;

[0029] Adjust the lens of the image measuring instrument to make the focal length clear;

[0030] Adjust so that one of the scale lines of the standard line ruler is within the field of view of the image measuring instrument, and record the coordinate P1 corresponding to the scale line in the imaging window through the image measuring instrument;

[0031] Then adjust so that the other scale line of the standard line ruler is within the field of view of the image measuring instrument, and record the corresponding coordinate P2 of this scale line in the imaging window through the image measuring instrument;

[0032] Calculate and obtain the length H corresponding to the image measurin

Embodiment 2

[0037] A quick calibration method for an image measuring instrument, comprising the following steps:

[0038] Place the standard line ruler vertically on the workbench, and the standard fiber ruler is parallel to the ordinate of the plane where the image measuring instrument workbench is located;

[0039] Adjust the lens of the image measuring instrument to make the focal length clear;

[0040] Adjust so that one of the scale lines of the standard line ruler is within the field of view of the image measuring instrument, and record the corresponding coordinate P3 of this scale line in the imaging window through the image measuring instrument;

[0041] Adjust again so that the other scale line of the standard line ruler is within the field of view of the image measuring instrument, and record the corresponding coordinate P4 of this scale line in the imaging window through the image measuring instrument;

[0042] Calculate and obtain the length H corresponding to the image measurin

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PUM

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Abstract

The invention provides a quick correction method of an image measurement instrument. The quick correction method comprises the steps of horizontally or vertically placing a standard line scale on a worktable, adjusting a lens of the image measurement instrument so that a focal length is clear, adjusting so that one scale mark in the standard line scale is in the field of vision of the image measurement instrument and recording the corresponding coordinates of the scale mark in an imaging window by use of the image measurement instrument, further adjusting so that another scale mark in the standard line scale is in the field of vision of the image measurement instrument and recording the corresponding coordinates of the scale mark in the imaging window by use of the image measurement instrument, calculating the corresponding length H of the image measurement instrument according to the coordinates measured twice, next, obtaining a linear compensation coefficient a of the image measurement instrument according to the relationship of the actual scale L of the standard line scale to the length H, a=L/H, and correcting any one point in the image measurement instrument according to the linear compensation coefficient, thereby obtaining the corresponding corrected coordinates. The method is capable of correcting the image measurement instrument simply and quickly.

Description

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Claims

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Application Information

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Owner 东莞市天勤仪器有限公司
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