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Steel plate crown measurement method with error compensation

An error compensation and measurement method technology, applied in the field of geometric quantity measurement, can solve problems such as insufficient measurement accuracy, and achieve the effect of improving measurement accuracy and overcoming the influence of environmental interference

Active Publication Date: 2012-05-30
BAOSHAN IRON & STEEL CO LTD
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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a steel plate convexity measurement method with error compensation. By fitting the error curves of multiple standard gauge blocks, a linear compensation curve is obtained, and then the actual detection data is calculated using the compensation curve. Compensate and improve measurement accuracy to solve the defects of insufficient measurement accuracy caused by environmental interference and vibration in the prior art

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  • Steel plate crown measurement method with error compensation
  • Steel plate crown measurement method with error compensation
  • Steel plate crown measurement method with error compensation

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Embodiment Construction

[0025] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content of the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0026] Such as figure 2 As shown, a steel plate crown measurement method with error compensation includes the following steps:

[0027] 1) Three standard gauge blocks with verified thicknesses of 2.000mm, 3.994mm and 6.040mm are used as standard parts, arranged at intervals of 5mm, and the laser convexity detection system is used to measure each standard gauge block separately when scanning with the probe The thickness values ...

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Abstract

The invention relates to the field of geometric quantity measurement, in particular to a steel plate crown measurement method. The steel plate crown measurement method with error compensation comprises the following steps of measuring a standard gauge block by using a laser convexity measurement system, comparing the obtained data with a gauge block nominal value to obtain error compensation quantity, fitting nonlinear error compensation quantities of multiple different standard gauge blocks through multiple measurements to obtain a linear error compensation curve, and then compensating the measurement data of a practical measured steel plate by utilizing the error compensation curve to finally obtain the real measurement result with high precision. The invention realizes the error compensation within whole measurement range, improves one order of magnitude on the precision in comparison with the traditional measurement method, and can guarantee the measurement precisions of the steelplates with different thickness changeless. The invention can realize the high-precision measurement on the convexity of the steel plate with random thickness within 1-30mm, and the measurement precision can be up to 3 micrometers; and the invention avoids the influence of inference from the site environment and is suitable for the popularization on the steel production line under various complexenvironments.

Description

technical field [0001] The invention relates to the field of geometric quantity measurement, in particular to a method for measuring the crown of a steel plate. Background technique [0002] Chinese invention patent 1031758A relates to an online laser thickness measurement device, which uses a laser light source and a CCD device to form a photoelectric conversion device to achieve thickness measurement and can be used in high temperature environments. Trigonometry is used for measurement, as attached figure 1 As shown, the measurement principle can be expressed as [0003] y = y ′ a sin β b sin α - y ′ sin ( α + β ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/02
Inventor 陈锐红王军沈毅冯志强白小波张俏
Owner BAOSHAN IRON & STEEL CO LTD
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