Study on sampling inspection schemes for continuous lot spatial data

Abstract:

Based on empirical data, acceptance number (c) is calculated by inverse poisson. A new method is use to calculate sample size n, which uses lot size N and acceptable quality level of process average (AQL). The scheme of continuous spatial data with large lot size is designed (N, n, c). At last, the spatial data schemes, designed based on the developed algorithm, are compared with them which based on percent sampling inspection and sampling table. The results show the merits and the implementary conditions of the developed algorithm.

Key words:quality control; sampling scheme, acceptable quality level of process average(AQL);operating characteristic curve(OC curve)