GB/T 3323.2-2019: Translated English of Chinese Standard (GB/T3323.2-2019): Non-destructive testing of welds -- Radiographic testing -- Part 2: X-and gamma-ray techniques with digital detectorsThis part of GB/T 3323 is based on the basic theory and practical experience of digital radiography; specifies the general technology and requirements using computer radiography (CR) technology and digital imaging (DR) technology, which use the digital detector array (DDA), to perform X-and gamma-ray digital detection, for the welded joints of metal materials, including the technical level, general requirements, recommended technologies of X-and gamma-ray digital detection technology (detector system's selection, penetration technology control, image acquisition and display requirements), etc.; specifies the minimum requirements for obtaining digital detection images, which have the equivalent detection sensitivity as the film-based radiographic detection technology, in Part 1 of this standard (GB/T 3323.1). |
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المحتوى
| 5 | |
Recommended digital radiography technology | 19 |
Testing report | 43 |
Normative Determination method for minimum gray value by | 60 |
عبارات ومصطلحات مألوفة
according allows Appendix bad pixel basic spatial resolution calculated calibration caused compensation contrast-to-noise ratio copper correction corresponding curve detection image detector array DDA determine diameter difference digital detector array digital image digital radiographic testing direction directly display double-wall double-shadow double-wall single-shadow penetration duplex-wire image quality equivalent filter formula GB/T geometric magnification girth welds greater higher image quality indicator image quality value imaging plate increase IP plate less linear located marked material maximum measured meet the requirements minimum gray value minimum SNRN nominal thickness Non-destructive testing normalized Note number of exposures obtained parameters parties penetrated thickness Penetration layout penetration method penetration technology performed placed possible processing radiation ray source recommended reduce reference shielding shown in Figure side signal-to-noise ratio single-wall SNRN value specified steel storage surface Table tested object tube voltage type image quality unsharpness wire pair wire-type image quality X-ray
معلومات المراجع
| العنوان | GB/T 3323.2-2019: Translated English of Chinese Standard (GB/T3323.2-2019): Non-destructive testing of welds -- Radiographic testing -- Part 2: X-and gamma-ray techniques with digital detectors |
| المؤلف | https://www.chinesestandard.net |
| الناشر | https://www.chinesestandard.net, 2021 |
| عدد الصفحات | 68 من الصفحات |
| تصدير الاقتباس | BiBTeX EndNote RefMan |