【摘要】 本文以分析波谱图为主要手段,测试了细纱、并条所纺纱条的均匀度波谱图,用重复试验的方法绘制了波谱图峰值变化曲线。用 L-TEST 测得相应片段间的均匀度曲线图,进而讨论了因并条机振动而造成的周期性疵点在波谱图、均匀度曲线图上所反映的规律和特点,以及获得该图的测试方法。更多还原

【Abstract】 This paper treats spectrogram analysis as main method.After Spe- ctrograms of some slivers and rovings were determined with the Spect- rgraph Uster Tester-ⅡB,the curves of variations of peak values were plotted manually by means of repeated measurements.Graphical repre- sentations of mass variations with respect to corresponding cut length were carried out with the L-Test,Uster Tester-ⅡB.Properties and Regularities of Peri dic faults created due to drawframe vibration were discussed.The method to determine the curves of peak variations is e- xplained.更多还原