信息技术——自动识别和数据采集技术——直接零件标记（DPM）质量指南

[中文适用范围]： 本文件旨在为核查器制造商和应用规范开发人员提供工程文档。该文件描述了对ISO/IEC 15415中定义的符号质量方法进行修改，并定义了符号规范。它规定了替代光照条件，一些新的术语和参数，修改了一些参数的测量和随后的分级以及分级结果的报告。本文件旨在评估直接标记部件上的符号质量，其中标记直接应用到物品表面，并且读取设备是二维成像仪。当应用程序允许时，该方法也可能是其他方法产生的符号的潜在适用方法。这适用于在相同的扫描环境中扫描直接零件标记（DPM）符号和非DPM符号的情况。符号等级以DPM等级而不是ISO/IEC 15415等级报告。 [外文原描述]： This document is an engineering document intended for verifier manufacturers and application specification developers. This document describes modifications to the symbol quality methodology defined in ISO/IEC 15415 and a symbology specification. It defines alternative illumination conditions, some new terms and parameters, modifications to the measurement and subsequent grading of certain parameters and the reporting of the grading results. This document was developed to assess the symbol quality of direct marked parts, where the mark is applied directly to the surface of the item and the reading device is a two-dimensional imager. When application specifications allow, this method is also potentially applicable to symbols produced by other methods. This is appropriate when direct part marked (DPM) symbols and non-DPM symbols are being scanned in the same scanning environment. The symbol grade is reported as a DPM grade rather than as an ISO/IEC 15415 grade.