Article(id=1156967533111762949, tenantId=1146029695717560320, journalId=1146119944283992078, issueId=1156967523842347919, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1753772155311, onlineDateStr=2025-07-29, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753772155311, onlineIssueDateStr=2025-07-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753772155311, creator=13701087609, updateTime=1753772155311, updator=13701087609, issue=Issue{id=1156967523842347919, tenantId=1146029695717560320, journalId=1146119944283992078, year='2024', volume='2', issue='7', pageStart='1', pageEnd='160', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=0, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1753772153100, creator=13701087609, updateTime=1753777984529, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1156991982682854377, tenantId=1146029695717560320, journalId=1146119944283992078, issueId=1156967523842347919, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1156991982682854378, tenantId=1146029695717560320, journalId=1146119944283992078, issueId=1156967523842347919, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=112, endPage=114, ext={EN=ArticleExt(id=1156967534898536485, articleId=1156967533111762949, tenantId=1146029695717560320, journalId=1146119944283992078, language=EN, title=Research on vertical linearuncertainty of ultrasonic flaw detectors, columnId=1156641066674676444, journalTitle=Laboratory Testing, columnName=Evaluation and Analysis, runingTitle=null, highlight=null, articleAbstract=

The purpose is to study the vertical linear uncertainty of ultrasonic flaw detectors. Firstly, introduce the specific instrument models and technical parameters, analyze the basis and methods for evaluating the vertical linear uncertainty of ultrasonic flaw detectors, and conduct uncertainty evaluation through modeling. Finally, issue a vertical linear uncertainty report and propose the key points for calibrating the ultrasonic flaw detector calibration device. Intended to provide reference for ultrasonic detection personnel, master the exploration skills of vertical linear uncertainty of ultrasonic flaw detectors, truly optimize the quality and performance of ultrasonic flaw detectors, and truly play its functional role.

, correspAuthors=Si-Yang HUANG, authorNote=null, correspAuthorsNote=
*HUANG Si-Yang, Master, Engineer, Jiangxi Provincial Inspection, Testing and Certification Institute, Nanchang 330052, China. E-mail:
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以研究超声探伤仪垂直线性不确定度为目的。先介绍围绕具体的仪器型号及技术参数,具体分析超声探伤仪垂直线性不确定度评定依据及方法,并以建模方式进行不确定度评定,最后出具垂直线性不确定度报告,提出超声探伤仪检定装置校准的要点。旨在为超声探测人员提供借鉴,掌握超声探伤仪垂直线性不确定度的探究技巧,真正优化超声探伤仪的质量与性能,真正发挥其功能作用。

, correspAuthors=黄思杨, authorNote=null, correspAuthorsNote=
*黄思杨,硕士,工程师,研究方向为计量检测。E-mail:
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黄思杨,硕士,工程师,研究方向为计量检测。

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detector, figureFileSmall=null, figureFileBig=null, tableContent=
类别 参数
频率范围 0.01~20 MHz
信号幅值范围 $-{55}\sim +{23}\mathrm{\;{dB}}$
衰减器误差 0.5%*A (衰减量)$\pm {0.02}\mathrm{\;{dB}}$
声程范围 50~6000 mm
声速范围 1000~9999 m/s
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类别 参数
频率范围 0.01~20 MHz
信号幅值范围 $-{55}\sim +{23}\mathrm{\;{dB}}$
衰减器误差 0.5%*A (衰减量)$\pm {0.02}\mathrm{\;{dB}}$
声程范围 50~6000 mm
声速范围 1000~9999 m/s
), ArticleFig(id=1156967605425758415, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156967533111762949, language=EN, label=Table 2, caption=The setup of CTJ-5A ultrasonic flaw detector, figureFileSmall=null, figureFileBig=null, tableContent=
内容 设置
工作方式
抑制 0%
宽带 0.5~4 MHz
调节频率 ${2.5}\mathrm{{MHz}}$
调节按钮 衰减按钮
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内容 设置
工作方式
抑制 0%
宽带 0.5~4 MHz
调节频率 ${2.5}\mathrm{{MHz}}$
调节按钮 衰减按钮
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衰减量 (dB) 0 2 4 6 8 10 12 14
理论值 (%) 100 81.5 66.2 50.2 39.7 31.8 19.0 15.4
实测值 (%) 100 80.5 66.5 50.1 39.9 32.0 19.0 15.2
差值 0 0.5 -0.3 -0.1 0.2 -0.2 0 0.2
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衰减量 (dB) 0 2 4 6 8 10 12 14
理论值 (%) 100 81.5 66.2 50.2 39.7 31.8 19.0 15.4
实测值 (%) 100 80.5 66.5 50.1 39.9 32.0 19.0 15.2
差值 0 0.5 -0.3 -0.1 0.2 -0.2 0 0.2
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标准不确定度 分量 $\mathrm{u}\left({\mathrm{x}}_{\mathrm{i}}\right)$ 不确定度来源 标准 不确定度 ${\mathrm{C}}_{\mathrm{i}}$ $\left|{\mathrm{c}}_{\mathrm{i}}\right|\cdot \mathrm{u}\left({\mathrm{x}}_{\mathrm{i}}\right)$ ${\mathrm{V}}_{\mathrm{i}}$
$\mathrm{u}\left({\Delta }_{+ }\right)$ 测量重复 视差 标准衰减器的 不确定度 0.65% 1 0.65% 50
$\mathrm{u}\left(\Delta \right)$ 测量重复 视差 标准衰减器的 不确定度 0.65% -1 0.65 50
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标准不确定度 分量 $\mathrm{u}\left({\mathrm{x}}_{\mathrm{i}}\right)$ 不确定度来源 标准 不确定度 ${\mathrm{C}}_{\mathrm{i}}$ $\left|{\mathrm{c}}_{\mathrm{i}}\right|\cdot \mathrm{u}\left({\mathrm{x}}_{\mathrm{i}}\right)$ ${\mathrm{V}}_{\mathrm{i}}$
$\mathrm{u}\left({\Delta }_{+ }\right)$ 测量重复 视差 标准衰减器的 不确定度 0.65% 1 0.65% 50
$\mathrm{u}\left(\Delta \right)$ 测量重复 视差 标准衰减器的 不确定度 0.65% -1 0.65 50
), ArticleFig(id=1156967605878743261, tenantId=1146029695717560320, journalId=1146119944283992078, articleId=1156967533111762949, language=EN, label=Table 5, caption=Joint testing results, figureFileSmall=null, figureFileBig=null, tableContent=
分类 1 2 3 4 5 6 7 8 9 10
垂直 (%) 31.8 31.7 31.5 31.4 31.5 31.6 31.3 31.2 31.4 31.3
测量值 x (dB) 9.97 10.05 10.04 10.04 10.08 10.05 10.06 10.05 10.07 10.09
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分类 1 2 3 4 5 6 7 8 9 10
垂直 (%) 31.8 31.7 31.5 31.4 31.5 31.6 31.3 31.2 31.4 31.3
测量值 x (dB) 9.97 10.05 10.04 10.04 10.08 10.05 10.06 10.05 10.07 10.09
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超声探伤仪垂直线性不确定度研究
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黄思杨 1, * , 衷梦芹 2 , 朱文杰 1
实验室检测 | 评价与分析 2024,2(7): 112-114
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实验室检测 | 评价与分析 2024, 2(7): 112-114
超声探伤仪垂直线性不确定度研究
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黄思杨1, * , 衷梦芹2, 朱文杰1
作者信息
  • 1 江西省检验检测认证总院 南昌 330052
  • 2 江西省检验检测认证总院 计量科学研究院 南昌 330002
  • 黄思杨,硕士,工程师,研究方向为计量检测。

通讯作者:

*黄思杨,硕士,工程师,研究方向为计量检测。E-mail:
Research on vertical linearuncertainty of ultrasonic flaw detectors
Si-Yang HUANG1, * , Meng-Qin ZHONG2, Wen-Jie ZHU1
Affiliations
  • 1 Jiangxi Provincial Inspection, Testing and Certification Institute Nanchang 330052 China
  • 2 Jiangxi Provincial Institute of Inspection, Testing and Certification Metrology Science Research Institute Nanchang 330002 China
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以研究超声探伤仪垂直线性不确定度为目的。先介绍围绕具体的仪器型号及技术参数,具体分析超声探伤仪垂直线性不确定度评定依据及方法,并以建模方式进行不确定度评定,最后出具垂直线性不确定度报告,提出超声探伤仪检定装置校准的要点。旨在为超声探测人员提供借鉴,掌握超声探伤仪垂直线性不确定度的探究技巧,真正优化超声探伤仪的质量与性能,真正发挥其功能作用。

超声探伤仪  /  检定装置  /  垂直线性  /  不确定度评定

The purpose is to study the vertical linear uncertainty of ultrasonic flaw detectors. Firstly, introduce the specific instrument models and technical parameters, analyze the basis and methods for evaluating the vertical linear uncertainty of ultrasonic flaw detectors, and conduct uncertainty evaluation through modeling. Finally, issue a vertical linear uncertainty report and propose the key points for calibrating the ultrasonic flaw detector calibration device. Intended to provide reference for ultrasonic detection personnel, master the exploration skills of vertical linear uncertainty of ultrasonic flaw detectors, truly optimize the quality and performance of ultrasonic flaw detectors, and truly play its functional role.

ultrasonic flaw detector  /  calibration device  /  vertical linearity  /  uncertainty assessment
黄思杨, 衷梦芹, 朱文杰. 超声探伤仪垂直线性不确定度研究. 实验室检测, 2024 , 2 (7) : 112 -114 .
Si-Yang HUANG, Meng-Qin ZHONG, Wen-Jie ZHU. Research on vertical linearuncertainty of ultrasonic flaw detectors[J]. Laboratory Testing, 2024 , 2 (7) : 112 -114 .
超声探伤仪检定装置用于工件缺陷的检测与评估, 为保证检定结果的准确性, 务必重视并落实超声探伤仪检定装置的检定校准, 其中垂直线性不确定度评定是检定校准的基本环节, 参照垂直线性指标确保超声探伤仪检定装置的实用性和有效性, 进一步扩大其应用范围。由此可见, 围绕超声探伤仪检定装置垂直线性不确定度评定探究具有必要性和重要性。
超声探伤仪组成部分包括超声发生器、显示器、探头等, 其工作原理如 图 1 所示。
CTJ-5A 型超声探伤仪检定装置 (如 图 2 ) 达到 JJG 746-2004 国家计量检定规程要求, 以脉冲调制法检定超声探伤仪垂直线性、衰减器误差等性能。其技术参数如 表 1 所示。
不确定度评定, 即通过表征赋予测量值, 它作为评定计量检定结果的参数 。评定依据包括《测量不确定度表达准则》( 1993 ),以及《计量检定不确定度》( 1996 )、JJF 1059-1999 《测量不确定度与表示》技术规范 。
CTJ-5A 型超声探伤仪检定装置垂直线性指标评定的过程中,主要围绕不确定度,即垂直线性误差进行检定、测量 [ 2 ] 。 其中装置测量值与被测量点之差为误差估读值,用 ${\mathrm{E}}_{\Delta }$ 表示。评定操作总结为: 连接 CTJ-5A 型超声探伤仪与检定装置 (如 图 3 ), 其中, CTJ-5A 型超声探伤仪设置情况如 表 2 所示。
设置完成后, 仪器显示屏读数达到规定, 同时, 显示满格信号。其中,衰减按钮启动后,每间隔 $2\mathrm{\;{dB}}$ 记录信号幅度变化值, 达到既定衰减量之后, 对比实际测量值和理论值 ( 如 表 3 )。
围绕垂直线性误差建立测量模型,确定 ${\mathrm{E}}_{\Delta }$ 计算公式,如公式 (1)。
${\mathrm{E}}_{\Delta }= {\Delta }_{\mathrm{x}}- {\Delta }_{\mathrm{N}}+ \delta {\Delta }_{\mathrm{N}}$
公式中, ${\Delta }_{\mathrm{x}}$ 代表被测点误差, ${\Delta }_{\mathrm{N}}$ 代表 CTJ-5A 型超声探伤仪检定装置读数值误差, $\delta {\Delta }_{\mathrm{N}}$ 代表装置基本误差对测量值的影响。
输入量与 ${\Delta }_{+ }\text{、}{\Delta }_{- }$ 之间独立,其合成标准不确定度公式如公式 (2)。
${\mathrm{u}}_{\mathrm{c}}\left(\Delta \right)= \sqrt{\left\lbrack {{\mathrm{c}}_{1}\cdot \mathrm{u}\left({\Delta }_{+ }\right)}\right\rbrack +{\left\lbrack {\mathrm{c}}_{2}\cdot \mathrm{u}\left({\Delta }_{- }\right)\right\rbrack }^{2}}$
输入量的标准不确定度归纳如 表 4 所示。
评定 CTJ-5A 型超声探伤仪检定装置垂直线性不确定度的过程中, 围绕精度影响因素进行评定, 在分类基础上进行评定, 分别是装置不确定度及测试仪不确定度类、标准不确定度类 [ 3 ]
第一,装置不确定度评定。当评定依据、测量标准、被测对象等条件保持不变,固定装置调制成 ${10}\mathrm{\;{dB}}$ ,无新装置,则 $\mathrm{U}$ ( $\mathrm{{CTJ}}-5\mathrm{\;A}$ 型超声探伤仪检定装置读数值) 为 0。
第二,测试仪不确定度评定。当被测 CTJ-5A 型超声探伤仪放置失稳,则会引发读数偏差。通过增加测量次数, 以及多台仪器同测的方式来评定垂直线性的不确定度。联测的结果如 表 5 所示。
第三,标准不确定度评定。装置基本误差为 $\pm {0.02}\mathrm{\;{dB}}$ ,均匀分布可知,包含因子 $\sqrt{2}$ ,则 ${0.02}\div \sqrt{2}= {0.0141}\mathrm{\;{dB}}$ 。数值可靠性较高,其自由度预估为无穷大。
扩展不确定度由合成不确定度与包含因子的乘积而得。其中合成不确定度计算公式如 (3)。
$\mathrm{U}\left({\mathrm{E}}_{1}\right)= \sqrt{\sum {\mathrm{C}}_{\mathrm{i}}{\left\lbrack \mathrm{U}\left({\mathrm{x}}_{\mathrm{i}}\right)\right\rbrack }^{2}}\approx {0.04}\mathrm{\;{dB}}$
公式中,合成不确定度用 $U\left({E}_{1}\right)$ 表示, ${C}_{i}\left\lbrack {U\left({x}_{i}\right)}\right\rbrack$ 意味着单个影响因素对测量结果的影响程度, 对其合成, 获得合成不确定度。目的是提高测量结果准确度和可靠性。
测量条件达到要求,包含因子赋值为 2,当测试点为 ${10}\mathrm{\;{dB}}$ 时, 不确定度数值即包含因子与拓展不确定度的乘积, 即 $2 \times {0.04}\mathrm{\;{dB}}= {0.08}\mathrm{\;{dB}}$
超声探伤仪检定装置用于评测超声探伤仪的过程中, 务必落实检定装置校准工作, 确保超声探伤仪垂直线性不确定度评定工作有意义地开展, 最终得出可靠的评定结果, 真正为超声探伤仪改进、优化提供依据 [ 4 ]
取型号一致且稳定运行的测试仪, 数量为一台。事先选择示值为 ${0.1}\mathrm{{KV}}$ 的点,保持重复性条件,对其多次测量,测试为 8 次,获得测量列,数据为:0.1000,0.0999,0.1000,0.0999, 0.1000,0.1000,0.1000,0.0999。
公式 (4) 如下
$\bar{x}= \frac{1}{8}\mathop{\sum }\limits_{{i = 1}}^{8}{x}_{i}$
单次实验标准差用公式(5)求得单次测量标准差。
$ s =\sqrt{\mathop{\sum }\limits_{{i = 1}}^{8}{\left({x}_{i}- \bar{x}\right)}^{2}/\left({n - 1}\right)} $
重复性测量结果为 ${0.09996}\mathrm{{KV}}$ ,单次测量标准差数值为 ${4.827}\times {10}^{-5}\mathrm{{KV}}$
检定装置校准的相关要点总结为:第一,优选检定方法。 在超声探伤仪检定装置校准环节选择适合的检定方式。常见检定法有四种, 分别是误差检定、灵敏度检定、线性度检定、脉冲重复频率检定, 不同检定方法的特点、应用原理等存在差异, 所以要视情况选择适合的检定方法 [ 5 ] 。第二,确定校准方法。 针对探头进行几何校准, 指的是探头外形校准, 探头信号传播方向校准,目的是减少因探头结构多变产生的评定误差 [ 6 ] 。对于灵敏度校准, 利用最小信号幅值校准超声探伤仪的灵敏度, 同样是缩小误差。对于距离校准, 主要在样品上测距, 提高超声探伤仪的距离测量准确,大大减小探头与检测点之间误差 [ 7 ] 。 第三,相关注意事项。超声探测仪检定装置的垂直线性不确定度评定,必须在标准温度下进行,一般而言,环境温度 ${22}^{\circ }\mathrm{C}$ , 相对湿度 50% 的条件下进行检定和校准 [ 8 ] 。不确定度评定过程中, 应保证超声探测仪鉴定装置放置的稳定性, 这能减少误差, 同时,还要控制环境噪声,将检定误差最小化,提高校准结果的准确性 [ 9 ] 。评定活动开始前,工作人员彻底清洁探头,去除杂质, 确保评定的准确性。最后针对超声探测仪检定装置进行周期性检定和校准,以保证其准确性和稳定性 [ 10 ]
综上所述, 超声探伤仪垂直线性不确定度是超声探伤仪检定装置性能衡量的重要指标。以 CTJ-5A 型超声探伤仪检定装置为例, 掌握这一性能评定依据以及方法, 并通过建模分析对装置不确定度、拓展不确定度评定。根据报告针对性强化超声探伤仪的测量能力, 提高测量精度, 从整体上提高超声探伤仪检定装置的评定水平。
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2024年第2卷第7期
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    1 江西省检验检测认证总院 南昌 330052
    2 江西省检验检测认证总院 计量科学研究院 南昌 330002

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*黄思杨,硕士,工程师,研究方向为计量检测。E-mail:
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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