Fabric suspension three-dimensional tester based on grating stripe method

Abstract

A three-dimensional measuring apparatus for fabric pendency based on grating fringe comprises main driving system, elevation system, optics system and image collection system. The sample rotation step motor (5) controls the rotation of rotation platform (17), and elevation platform step motor (7) controls the up and down movement of elevation platform, and step motor (11) controls the up and down movement of ring reflection pyramidal face (14). The diffused light sent by point source (6) is converted into parallel light by ring paraboloid (8) and then forms light and shade even grating fringe with clear outline on the three dimensional surface of the fabric to be measured through ring reflecting pyramidal face (14) with 45 degree angle and two grating molds (9). The image collection (21) directly gets two-dimensional contour chart of the sample, which is processed by computer to get three-dimensional outline curved surface. And it can realize the whole dynamic and static measuring of the fabric and stepless speed regulating realizes the continuity of pendency dynamic and static measuring.

Description

Technical field: [0001] The invention is a fabric drape tester, in particular a fabric drape three-dimensional tester based on a grating stripe method, which is suitable for three-dimensional dynamic and static drape test of various types of fabrics. Background technique: [0002] Before the present invention was made, there were various forms of drape testers abroad, and my country also had a drape tester and corresponding test method standards. However, these instruments usually can only test the static drape performance of the fabric, and can only measure the two-dimensional shape of the fabric. The test index is single and cannot reflect the style of the fabric in many ways, so the application in our country is also relatively narrow. With the advancement of science and technology and the improvement of people's living standards, and the advent of new fibers and fabrics, people not only require the fabric to have good static performance, but also require the fabric to ha...

AI Technical Summary

Problems solved by technology

However, in the application, it is found that the drape coefficient has a great dependence on the drape shape of the fabric, and YG811 can only realize the static measurement of the fabric, and cannot fully reflect the drape characteristics of the fabric; YG811 uses the size of the shading area of ​​the fabric sample to measure To calculate the drape coefficient of the fabric, one of the important assumptions is that the fabric is an opaque black body, but for some thin fabrics, this assumption is not suitable, because part of the light passes through the fabric, so it is detected on the receiver The received light intensity is too large, so the measured drape coefficient is too large

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