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.