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首页> 外文期刊>Indian Journal of Fibre & Textile Research >Measurement of yarn density in woven fabrics using fringe projection moire techniques
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Measurement of yarn density in woven fabrics using fringe projection moire techniques

机译:使用条纹投影莫尔条纹技术测量机织织物中的纱线密度

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摘要

Fringe projection Moire, a novel, accurate and fast technique with high repeatability, has been developed in order to measure the yarn density in woven fabrics. In the experimental set-up, collimated laser beams illuminate a Ronchi grating to be projected on a fabric. In case the density of projected lines and fabric becomes the same, the desired moire pattern is observed on the fabric. As a result, the measurement of the distance between grating and fabric can guide us to find out fabric yarn density by using simple equations. In this regard, twenty five groups of shirting woven fabrics consisting of five, weave structures and five different weft densities have been tested. The results show that there is a high correlation (R-2 =0.9932) between the data obtained from the new and the conventional methods.
机译:为了测量机织织物中的纱线密度,已经开发了一种条纹投影莫尔条纹(Moire projection Moire),这是一种新颖,准确,快速且具有高重复性的技术。在实验设置中,准直的激光束照亮了将投射在织物上的朗奇光栅。如果投影线和织物的密度相同,则在织物上会观察到所需的莫尔条纹。结果,光栅和织物之间距离的测量可以指导我们通过使用简单的方程式找出织物纱线的密度。在这方面,已经测试了由五种编织结构和五种不同的纬密度组成的二十五个上衣机织织物。结果表明,从新方法和常规方法获得的数据之间具有高度相关性(R-2 = 0.9932)。

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