纤维束条干外观不匀的激光测量方法

基于激光测径技术,采用半导体激光传感器测量纤维束条干短片段的不规则,研究了纤维束横截面直径及其不规则波长的测量方法。设计了非接触式在线测量系统和并制定实验方案,其中包括传感器和实验材料选择。通过实验分析了纱线喂入速度变化对纱线直径、条干不匀率和最小不规则波长的影响以及不同测量方法引起的结果差异。实验结果证实了测量系统的可行性和测量结果的良好再现性,且系统能够有效地获取纱线条干短片段不规则的更短波长特征,实现了数据分析过程自动化。

Measuring Method for Appearance Unevenness of Fiber Bundles

Based on laser diameter-measuring technology, the measuring method on the cross-section diameter in fiber bundles and its wavelength of short-term irregularity is discussed. A contactless on-line measuring system and experimental scheme, including the selection of laser sensor and experimental materials, are plotted. The influence of feeding speed on the diameter, the unevenness and the mininum wavelength of the yarn and the results difference result from various methods are analysed experimentally. The results show that the system is feasible and has good reproducibility of the measured results. Moreover, the new system can extract the shorter wavelength feature on yarn short-term irregularity and the data analysis process can be efficiently automated.