JJG 979-2003 条码检测仪

中华人民共和国国家计量检定规程

JJG979-2003

条码检测仪

BarCodeVerifiers

2003一03一05发布2003一06一01实施

国家质量监督检验检疫总局发布

JJG979-2003

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BarCodeVerifiers

本规程经国家质量监督检验检疫总局于2003年03月05日批准，并自

2003年06月01日起施行。

归口单位:全国几何量长度计量技术委员会

起草单位:国家条码质量监督检验中心

本规程委托全国几何量长度计量技术委员会负责解释

JJG979-2003

本规程主要起草人:

熊立勇(国家条码质量监督检验中心)

吴海连(国家条码质量监督检验中心)

王迎春(国家条码质量监督检验中心)

JJG979-2003

目录

1范围····。·····················································································……(1)

2引用文献····················································································……(1)

3术语··························································································……(1)

3.1标准反射板·············································································……(1)

3.2条/空宽度标准器·····································································……(1)

3.3合格的条码符号样品··································································……(1)

3.4X尺寸····················································································……(1)

4概述··························································································……(1)

4.1用途和基本原理········································································……(1)

4.2级别·······················································································……(2)

5计量性能要求··············································································……(3)

5.1反射率的示值误差······························································。······……(3)

5.2反射率的重复性·····································、······，·····、、，、、·，、·，，·，·········一(3)

5.3反射率的稳定性········································································……(3)

5.4条/空宽度的示值误差·······························································……(4)

5.5条/空宽度的重复性··································································……(4)

5.6条/空宽度的稳定性·································································……(4)

6通用技术要求········。·····································································……(4)

6.1外观·······················································································……(4)

6.2计算机性能···································································……(4)

6.3显示和打印··············································································……(4)

7计量器具控制··············································································……(4)

7.1检定条件···········································。·····································……(4)

7.2检定项目···········································。·····································……(5)

7.3检定方法·················································································……(6)

7.4检定结果的处理········································································……(7)

7.5检定周期·················································································……(8)

附录A检定证书/检定结果通知书内页格式··········································……(9)

附录B检定记录格式·····································································……(10)

JJG979-2003

条码检测仪检定规程

范围

本规程适用于定量检测的一维条码检测仪的首次检定和后续检定。

2引用文献

本规程引用下列文献:

GB12904-1998商品条码

GB/T12905-2001)条码术语

GB/T12907-1991库德巴条码

GB/T16829-1997交插二五条码

JJF1001-1998通用计量术语及定义

使用本规程时，应注意使用上述引用文献的现行有效版本。

3术语

3.1标准反射板

工作平面的反射率值经过校准，用于复现反射率量值的实物量具。

3.2条/空宽度标准器

制作于平板上的条码符号的条/空宽度值经过校准，用于复现条/空宽度量值的实物

量具。

3.3合格的条码符号样品

印制质量符合有关条码标准或技术规范的条码符号实物。

3.4X尺寸

条码符号中最窄条/空宽度的名义尺寸。

4概述

4.1用途和基本原理

条码检测仪是用于检验条码符号质量的仪器，.主要测量条码符号的条/空反射率和

豁空宽度。条/空反射率测量范围为2%_}-R_<99%;条/空宽度测量范围通常为

0.127mm-D-5.700mmo

按照扫描方式，条码检测仪可分为机械位移扫描式和电子位移扫描式两类，前者包

括光笔型、自动机械型和激光枪型;后者有CCD(电荷祸合器件)型。

条码检测仪通常由光电扫描器、辅助测长装置和计算机等部分组成，见图1。由扫

描器光源发出的光束照射在条码符号上，依次移过各条、空，并被条码符号反射。反射

光经光学系统投射在光电转换器上，被转变成电信号。扫描过程中，反射光强度随着各

条/空反射率的不同而改变，相应电信号的大小也随之变化，电信号的量值与反射率成

JJG979-2003

正比。仪器根据扫描电信号的量值测出各条/空的反射率。当扫描光点或采样区域的中

心经过条与空的过渡边界时，扫描电信号电平具有一定特征，仪器据此判定条/空的前、

后边界，再根据辅助测长装置的计数值，计算出从前边界到后边界的位移量，从而测出

条/空宽度的量值，见图2。条码检测仪还可以根据有关条码标准的规定对测量值进行分

析、判断，给出对被测条码符号质量的评定结果。

光电扫描部分

图1条码检测仪的结构框图

信号

电平

边界位置点

扫描距离