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Open-loop positioner and error elimination method for measurement

A technology for measuring errors and measuring points, which is applied in the field of open-loop positioning devices for measurement and error elimination, can solve the problems of poor accuracy of results, large errors, and inability to accurately return to the calibration point, etc., to achieve device and structure realization , The effect of eliminating positioning errors and mechanical errors

Inactive Publication Date: 2014-01-29
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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AI Technical Summary

Problems solved by technology

[0002] Most thickness measuring devices use the principle of contact relative method to measure thickness. The structure of traditional thickness measuring devices is relatively complicated, and the accuracy of the measured results is poor.
In the traditional test process, there is no positioning control for the motion state of the sensor, and it cannot accurately return to the calibration point, so there is a large error

Method used

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  • Open-loop positioner and error elimination method for measurement

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Embodiment

[0027] Such as Figure 1 ~ Figure 4 As shown, a kind of open-loop positioning measuring device used for measurement includes a vertical guide rod 2 and a test reference surface 1 connected with the vertical guide rod 2, and a distance measuring sensor 4 is provided on the vertical guide rod 2 for horizontal sliding connection The distance measuring sensor 4 is electrically connected to the data collector 6, and the vertical guide rod 2 is provided with a servo motor 7, and the servo motor 7 drives the distance measuring sensor 4 to slide up and down in the vertical guide rod 2.

[0028] Such as figure 2 As shown, during the measurement process of the thickness measuring device, when the measured sheet is not placed, the distance measuring sensor 4 is driven by the servo motor 7 to slide down from the highest point of the measuring device, so that the distance measuring sensor 4 measures out between the marble platforms. and write down the current position y of the ranging se...

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Abstract

The invention discloses an open-loop positioner and an error elimination method for measurement, and relates to a height measurement device and a measurement error elimination method thereof. The open-loop positioner comprises a vertical guide rod and a testing datum plane connected with the same. A distance measuring sensor is connected to the vertical guide rod in a transversely sliding manner, and is electrically connected with a data collector. A servo motor is arranged on the vertical guide rod and drives the distance measuring sensor to slide in the vertical guide rod up and down. Positioning errors and mechanical errors are eliminated skillfully by utilization of the open-loop positioner. By means of open-loop control and through the simple positioner and structure, accurate positioning of the distance measuring sensor is achieved, and the corresponding measuring method is convenient to operate and high in accuracy.

Description

technical field [0001] The invention relates to a height measuring device and a method for eliminating measurement errors, in particular to an open-loop positioning device for measurement and a method for eliminating errors. Background technique [0002] Most thickness measuring devices use the principle of contact relative method to measure thickness. The structure of traditional thickness measuring devices is relatively complicated, and the accuracy of the measured results is poor. In the traditional test process, there is no positioning control for the motion state of the sensor, and it cannot accurately return to the calibration point, so there are large errors. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide an open-loop positioning device for measurement and an error elimination method. A simple device is cleverly used to eliminate positioning errors and mechanical errors. Open-loop co...

Claims

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Application Information

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IPC IPC(8): G01B21/08
Inventor 董明王晓英邵伟赵维陆蔺辉杨菊辉石耀刚范玉德魏志勇曹军
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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