Method for measuring surface harshness of multi-measuring-point floating positioning

A floating positioning and measuring method technology, applied in the direction of measuring devices, instruments, etc., can solve the problems of difficult to meet the measurement accuracy requirements of surface smoothness, difficult to reduce the shape and position error of support points, small surface damage, etc., to achieve convenient measurement, eliminate The effect of positioning error and easy maintenance

Inactive Publication Date: 2011-10-19
CENT SOUTH UNIV
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AI Technical Summary

Problems solved by technology

[0002] The detection of surface irregularities in our country has developed in recent years, and some detection technologies have been borrowed from abroad. The traditional single-point measurement method is basically used. The single-point measurement method is calculated by calculating the height of the support point and the measurement value of the measurement sensor. The difference is used to determine the unevenness of the plane. This method is difficult to reduce the shape and position error of the support point, resulting in inevitable systematic errors in the entire measurement process. At the same time, the measurement mechanism will also cause certain damage to the surface of the measured object damage
These factors, to a certain extent, make it difficult to meet the requirements for high precision of surface smoothness measurement and small surface damage.

Method used

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  • Method for measuring surface harshness of multi-measuring-point floating positioning
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  • Method for measuring surface harshness of multi-measuring-point floating positioning

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Experimental program
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Effect test

Embodiment 1

[0041] refer to figure 2 As well as the calculation formula for the surface roughness of the object, three sensors including the first sensor 1, the second sensor 2, and the third sensor 3 are used, arranged in a straight line and installed on the installation datum 4, close to the measured surface 5, and determined by a positioning device The distance between the sensor and the measured surface 5. The positioning device includes a support positioning point 6 and a support positioning point 7. The support positioning point 6 and the support positioning point 7 can satisfy the measuring range and prevent the sensor from contacting the measured surface 5. installed in any position of the installation datum 4, such as figure 2 As shown, that is, X, Y, and Z can be any value, as long as the distance between the arranged sensors and the distance from the surface to be measured can be determined; the distance L between the sensors at both ends in the first embodiment is 2m;

[00...

Embodiment 2

[0051] refer to image 3 And the calculation formula of the roughness of the surface of the object, adopting 5 sensors including the first sensor 8, the second sensor 9, the third sensor 10, the fourth sensor 11, and the fifth sensor 12, arranged in a straight line and installed on the installation datum 4, Close to the measured surface 5, a positioning device is used to determine the distance between the sensor and the measured surface 5. The positioning device includes a supporting positioning point 6 and a supporting positioning point 7. The supporting positioning point 6 and the supporting positioning point 7 can meet the range and Install the sensor at any position of the installation datum 4 under the premise of preventing the sensor from contacting the measured surface 5, such as image 3 As shown, that is, X, Y, and Z can be any value, as long as the distance between the arranged sensors and the distance from the surface to be measured can be determined; in the second ...

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Abstract

The invention relates to a method for measuring surface harshness of multi-measuring-point floating positioning. A measuring device comprises a mounting basic standard, a supporting and positioning mechanism, a multi-measuring-point mechanism, a power supplying system, a data collecting and analyzing system and a measuring sensor which is connected with the power supplying system and the data collecting and analyzing system, wherein a measuring and mounting basic standard is provided with a plurality of measuring mechanisms with a confirmed position relationship; each measuring mechanism is provided with a displacement measuring sensor; the basic harness data of a measured object is obtained through the relative position relationship of a plurality of measurement points and the surface ofthe measured object, and further the harness data of the surfaces of measured objects with different wavelengths is calculated. The measuring device provided by the invention is flexible and convenient and has simple structure, the system errors of measurement positioning can be eliminated completely, the measuring accuracy is improved effectively, the harness of the surface for the measured object is measured, the device has important application value on the measurement of the smoothness of the surface of the object, and especially has a wide application prospect on the harness detection oftracks.

Description

technical field [0001] The invention relates to a method for measuring object surface irregularity, in particular to a method for measuring surface irregularity with multi-measuring point floating positioning. Background technique [0002] The detection of surface irregularities in our country has developed in recent years, and some detection technologies have been borrowed from abroad. The traditional single-point measurement method is basically used. The single-point measurement method is calculated by calculating the height of the support point and the measurement value of the measurement sensor. The difference is used to determine the unevenness of the plane. This method is difficult to reduce the shape and position error of the support point, resulting in inevitable systematic errors in the entire measurement process. At the same time, the measurement mechanism will also cause certain damage to the surface of the measured object damage. These factors make it difficult ...

Claims

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Application Information

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IPC IPC(8): G01B21/30
Inventor 吴湘华曹宏宇应立军彭彪孔德宇吴志祥吴铮何恩腾付艺超
Owner CENT SOUTH UNIV
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