A Comparative Analysis on Testing Stability of Seed Coat Neps (SCN) Number and Size with AFIS and Premier aQura

This paper makes a comparative analysis of testing stability of seed coat neps (SCN) number and size with Advanced Fiber Information System (AFIS) and aQura.After testing the number and size of SCN in sliver produced by two different experiments (twelve plans in each experiment)with AFIS and aQura,the test results are analyzed with the theory of statistical analysis and the following conclusions are drawn:(1) the testing stability of SCN number and size of aQura is better than that of AFIS;(2) to get a reliable testing stability of SCN number,more than 24 samples should be tested on aQura,while more than 130 samples on AFIS;(3) for SCN size test,more than 10 and 12 samples should be tested on aQura and AFIS,respectively;(4) the basic reason for higher testing stability of SCN number and size on aQura is that the weight of the samples is greater than that on AFIS.

Premier aQura测试参数稳定性

针对aQura棉结和短纤维测试仪测试参数的稳定次数问题,用统计分析的方法对2次不同实验(每次实验包括12个方案)条件下所生产生条的aQura检测结果进行分析,得出了aQura主要检测参数稳定次数范围和30次检测结果的CV值。研究认为:aQura在检测生条各项长度指标时,采用10次检测即可保证测试结果具有可重复性;检测带籽屑棉结尺寸、棉结总数和纤维棉结数量时,采用10次也可保证检测结果具有可重复性;检测带籽屑棉结含量则需检测19次以上,检测结果才具有可重复性。

AFIS与aQura测试参数稳定性的对比研究

对AFIS与aQura 2种测试仪的测试稳定性进行了对比研究。将2次不同实验(每次实验包括12个方案)条件下所生产的生条分别用AFIS与aQura仪器进行检测,用统计学的方法对检测结果进行分析,得出了2种仪器共有测试参数的稳定测试次数的范围和均值。认为AFIS与aQura 2种仪器在检测带籽屑棉结含量和尺寸及棉结总数方面的稳定性差异相当明显,aQura的测试稳定性要远远高于AFIS;在检测棉结平均尺寸、5%长度、质量短绒率和根数短绒率指标方面,2种仪器的测试稳定性差异不大,测试稳定性均较高。