GB/T 18852-2002无损检测　超声检验　测量接触探头声束特性的参考试块和方法.pdf

[cs 19.100 J04 中 华 人 民 共 和 国 国 家 标 准 Gs/T 18852一2002/1S012715:1999 无损检测 超声检验 测量接触探头声束特性的 参考试块和方法 Ultrasonicnon-destructivetesting-Referenceblocks andtestproceduresforthecharacterization ofcontactsearchunitbeamprofiles (ISO 12715:1999,IDT) 2002一10一11发布 2003一05一01实施 中 华 人 民 共 和 国 发 布 国家 质 量 监 督 检 验 检 疫 总 局 标准分享网 免费下载 GB/T 18852-2002/1S0 12715:1999 目 次 前言 ··································“·······”····”·······························“·······················…… I 引言 ····················。···························································································…… 1 1 范围 · 1 2 规范性引用文件··················”·······················”································”·············……1 3 符号和缩略语 ·····························································································……1 3.1符号···················，····，································，，，，，，····”··，···”，·，·········，··，···一 2 3. 2缩略语 ······································································································…… 2 4参考试块 ·····································································································…… 3 4.1半圆阶梯试块(HS试块) “·························“·”·························……‘二‘二‘二’二‘二’·”’3 4.2横孔试块((SDH试块》···“························”··················································…… 3 5测量方法 ·····································································“·······················…… 3 5.1直探头 ················”·····························”····················，.··········”··”··············…… 3 5.2斜探头 ·····························································