Article(id=1304922012833575191, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1304921832184897890, articleNumber=null, orderNo=null, doi=10.16790/j.cnki.1009-9239.im.2026.05.014, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1755014400000, receivedDateStr=2025-08-13, revisedDate=1758211200000, revisedDateStr=2025-09-19, acceptedDate=null, acceptedDateStr=null, onlineDate=1789047252137, onlineDateStr=2026-09-10, pubDate=1779206400000, pubDateStr=2026-05-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1789047252137, onlineIssueDateStr=2026-09-10, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1789047252137, creator=13701087609, updateTime=1789047252137, updator=13701087609, issue=Issue{id=1304921832184897890, tenantId=1146029695717560320, journalId=1149653034449285133, year='2026', volume='59', issue='5', pageStart='1', pageEnd='160', issueExtLink='null', onlineDate='null', pubDate='1779206400000', pubDateStr='2026-05-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1789047209067, creator='13701087609', updateTime=1789118050557, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1305218963043021063, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1304921832184897890, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1305218963043021064, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1304921832184897890, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=122, endPage=133, ext={EN=ArticleExt(id=1304922013005541656, articleId=1304922012833575191, tenantId=1146029695717560320, journalId=1149653034449285133, language=EN, title=Detection technology for interface pressure of 10 kV cold-shrink cable accessories based on ultrasonic nonlinear effect, columnId=1192878364340924664, journalTitle=Insulating Materials, columnName=Test and Analysis, runingTitle=null, highlight=null, articleAbstract=
The intermediate joint of power cables is a key node in power transmission and distribution system, the interface pressure of the joint directly impacts its insulation performance and current-carrying capacity. However, a technical bottleneck remains in the non-destructive quantitative measurement of interface pressure in multi-layer heterogeneous materials. This paper proposed a non-destructive testing method for interface pressure in 10 kV cold-shrinkable cable accessories based on ultrasonic nonlinear effects. First, samples with different interface pressures were prepared, and reference values were obtained using built-in sensors. Then, a mechanical pressurization device was designed to expand the experimental pressure range. Based on a nonlinear ultrasonic testing platform, time-frequency domain characteristics of the echo signals from three types of composite interfaces of the 10 kV cold-shrinkable cable joint were analyzed. Finally, a quantitative mapping model between interface pressure and the nonlinear ultrasonic coefficient was established and verified. The results show that in the interface pressure range of 0-0.40 MPa, the amplitudes of the fundamental wave and the second harmonic wave generally decrease with increasing interface pressure, while the nonlinear coefficient first increases and then decreases. The use of the pressurization module improves the accuracy of the pressure measurement results. The application of silicone grease on the XLPE interface can fill the microscopic air gaps and weaken the nonlinear effect in that area, but has little influence on the nonlinear behavior of the interface and does not affect the pressure measurement results. It is demonstrated that the relative nonlinear coefficient can serve as an effective characterization index for the interface pressure of cold-shrinkable cable accessories, providing a reliable non-destructive testing technical path for cable operation condition monitoring and life assessment.
, authors=Chunhua FANG, Qiang LIU, Peng CHANG
*, Weibin XU, Xiangmeng XU, Tian WU, Jinhao SI, Yeqi LIU, authorsList=Chunhua FANG, Qiang LIU, Peng CHANG, Weibin XU, Xiangmeng XU, Tian WU, Jinhao SI, Yeqi LIU, authorCompany=null, correspAuthors=Peng CHANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1304922019196334392, articleId=1304922012833575191, tenantId=1146029695717560320, journalId=1149653034449285133, language=CN, title=基于超声非线性效应的10 kV冷缩式电缆附件界面压力检测技术, columnId=1192878364483531003, journalTitle=绝缘材料, columnName=测试与分析, runingTitle=null, highlight=null, articleAbstract=
电力电缆中间接头作为输配电系统的关键节点,其界面压力直接影响绝缘性能及载流能力,但多层异质材料界面压力的无损定量检测仍存在技术瓶颈。本文提出了一种基于超声非线性效应的10 kV冷缩式电缆附件界面压力无损检测方法。首先通过制备不同界面压力样品并结合内置传感器获取基准值,然后设计机械加压装置拓展实验压力范围,并基于非线性超声检测平台,对10 kV冷缩式电缆中间接头3类复合界面回波信号进行时频域特征分析,最后构建界面压力与非线性超声系数的定量映射模型,并验证其有效性。结果表明:在0~0.40 MPa界面压力范围内,基波及二次谐波幅值随界面压力升高整体下降,非线性系数则呈先增后减趋势,采用加压模块装置后使得压力检测结果更加准确;XLPE界面涂敷硅脂可填充微小气隙并削弱该部分的非线性效应,但对界面非线性行为影响较小,不会影响压力检测结果。研究表明相对非线性系数可作为冷缩式电缆附件界面压力的有效表征指标,为电缆运行状态监测及寿命评估提供可靠的无损检测技术路径。
, authors=方春华, 刘强, 常鹏
*, 徐伟彬, 徐祥梦, 吴田, 司金皓, 刘叶颀, authorsList=方春华, 刘强, 常鹏, 徐伟彬, 徐祥梦, 吴田, 司金皓, 刘叶颀, authorCompany=null, correspAuthors=常鹏, authorNote=
方春华(1980-),男(汉族),湖北天门人,副教授,博士,主要从事高电压绝缘与测试技术的研究
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常鹏(1987-),男(汉族),湖北十堰人,讲师,主要从事电磁成型、输电线路装备技术的研究。
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方春华(1980-),男(汉族),湖北天门人,副教授,博士,主要从事高电压绝缘与测试技术的研究
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2018:1001-1005., articleTitle=Calculation and simulation of mechanical pressure of XLPE-SR surface in cable joints, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1304922112557347201, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, xref=null, ext=[AuthorCompanyExt(id=1304922112565735810, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, companyId=1304922112557347201, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=School of Electrical Engineering and New Energy, China Three Gorges University, Yichang 443100, China), AuthorCompanyExt(id=1304922112574124419, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, companyId=1304922112557347201, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=三峡大学 电气与新能源学院,湖北 宜昌 443100)])], figs=[ArticleFig(id=1304922115166204340, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=EN, label=Fig.1, caption=
10 kV cold-shrink cable intermediate joint, figureFileSmall=QKU4OAkE379y67BwvHfb9w==, figureFileBig=ibkFubznXiDTdv2p0CrI0A==, tableContent=null), ArticleFig(id=1304922115229118901, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=CN, label=图1, caption=
10 kV冷缩式电缆中间接头, figureFileSmall=QKU4OAkE379y67BwvHfb9w==, figureFileBig=ibkFubznXiDTdv2p0CrI0A==, tableContent=null), ArticleFig(id=1304922115321393590, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=EN, label=Fig.2, caption=
Cross-sectional structure of intermediate joint, figureFileSmall=HPzIPt0oIOMzm8/En1Iu0Q==, figureFileBig=YOAyN5atYIX/126njOygkw==, tableContent=null), ArticleFig(id=1304922115388502455, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=CN, label=图2, caption=
中间接头截面结构, figureFileSmall=HPzIPt0oIOMzm8/En1Iu0Q==, figureFileBig=YOAyN5atYIX/126njOygkw==, tableContent=null), ArticleFig(id=1304922115443028408, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=EN, label=Fig.3, caption=
Cable joint samples with different cross-sectional areas, figureFileSmall=gbfGlTkCfa2Kf2Shqhiijg==, figureFileBig=r3T56G6KYtGNc/GMdis8bQ==, tableContent=null), ArticleFig(id=1304922115497554361, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=CN, label=图3, caption=
不同横截面积的电缆接头样品, figureFileSmall=gbfGlTkCfa2Kf2Shqhiijg==, figureFileBig=r3T56G6KYtGNc/GMdis8bQ==, tableContent=null), ArticleFig(id=1304922115560468922, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=EN, label=Fig.4, caption=
Phlexsense S10 thin-film pressure sensor, figureFileSmall=DffTI1txcxkGMNMgZzyTxA==, figureFileBig=7m1DWCs5pywj/5rD6/YLaQ==, tableContent=null), ArticleFig(id=1304922115614994875, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=CN, label=图4, caption=
Phlexsense S10型薄膜压力传感器, figureFileSmall=DffTI1txcxkGMNMgZzyTxA==, figureFileBig=7m1DWCs5pywj/5rD6/YLaQ==, tableContent=null), ArticleFig(id=1304922115686298044, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=EN, label=Fig.5, caption=
Schematic diagram of thin-film pressure sensor arrangement, figureFileSmall=fmWTNkXaLUP2Adk4kcHlTw==, figureFileBig=x01qFiHeuUdj9ajqN6j2kw==, tableContent=null), ArticleFig(id=1304922115736629693, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=CN, label=图5, caption=
薄膜压力传感器布置示意图, figureFileSmall=fmWTNkXaLUP2Adk4kcHlTw==, figureFileBig=x01qFiHeuUdj9ajqN6j2kw==, tableContent=null), ArticleFig(id=1304922115803738558, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=EN, label=Fig.6, caption=
Measured values of three types of contact interface pressures in cables with different cross-sectional areas, figureFileSmall=bkuuVRldRtAKWTxmQIwCsQ==, figureFileBig=VgEN8ttTGPs6MOK5l6QbNg==, tableContent=null), ArticleFig(id=1304922115870847423, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=CN, label=图6, caption=
不同横截面积电缆的3类接触界面压力测量值, figureFileSmall=bkuuVRldRtAKWTxmQIwCsQ==, figureFileBig=VgEN8ttTGPs6MOK5l6QbNg==, tableContent=null), ArticleFig(id=1304922115937956288, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=EN, label=Fig.7, caption=
Experimental pressurization device, figureFileSmall=bDHGaiuZbCVybZBYF+phGg==, figureFileBig=lqTzM7OpHCRho4bg69oUAg==, tableContent=null), ArticleFig(id=1304922115996676545, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=CN, label=图7, caption=
实验加压装置(a) 加压装置原理图 (b) 加压装置实物图
, figureFileSmall=bDHGaiuZbCVybZBYF+phGg==, figureFileBig=lqTzM7OpHCRho4bg69oUAg==, tableContent=null), ArticleFig(id=1304922116063785410, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=EN, label=Fig.8, caption=
Schematic diagram of the experimental platform, figureFileSmall=ayY4JVttWIkGC0lo3mqzIw==, figureFileBig=FJyJeIty/QRShlzgDp7DhQ==, tableContent=null), ArticleFig(id=1304922116139282883, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=CN, label=图8, caption=
实验平台原理图, figureFileSmall=ayY4JVttWIkGC0lo3mqzIw==, figureFileBig=FJyJeIty/QRShlzgDp7DhQ==, tableContent=null), ArticleFig(id=1304922116231557572, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=EN, label=Fig.9, caption=
Typical time-domain signal of nonlinear ultrasound in cable accessories, figureFileSmall=HpO/UUYzL6OwYXjgWipEkQ==, figureFileBig=ORfOVLCe21eVtMxuE6DFJw==, tableContent=null), ArticleFig(id=1304922116315443653, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=CN, label=图9, caption=
电缆附件非线性超声典型时域信号, figureFileSmall=HpO/UUYzL6OwYXjgWipEkQ==, figureFileBig=ORfOVLCe21eVtMxuE6DFJw==, tableContent=null), ArticleFig(id=1304922116399329734, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=EN, label=Fig.10, caption=
Comparison of time-frequency domain results before and after denoising of ultrasonic echoes, figureFileSmall=JsZPpCImZsVtWpRXzdWZtA==, figureFileBig=rVJi9RKgrbwukeYraAlUDA==, tableContent=null), ArticleFig(id=1304922116483215815, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=CN, label=图10, caption=
超声回波去噪前后时频域结果对比, figureFileSmall=JsZPpCImZsVtWpRXzdWZtA==, figureFileBig=rVJi9RKgrbwukeYraAlUDA==, tableContent=null), ArticleFig(id=1304922116604850632, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=EN, label=Fig.11, caption=
Time-frequency domain signals of ultrasonic echoes on the silicone rubber-XLPE interface under different pressures, figureFileSmall=yw1m0cgfLx9ctaQ7EPUg9w==, figureFileBig=bnNmb3L5DmSf4EO9Yb7Gxg==, tableContent=null), ArticleFig(id=1304922116680348105, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=CN, label=图11, caption=
硅橡胶-XLPE界面在不同压力下的超声回波时频域信号, figureFileSmall=yw1m0cgfLx9ctaQ7EPUg9w==, figureFileBig=bnNmb3L5DmSf4EO9Yb7Gxg==, tableContent=null), ArticleFig(id=1304922116760039882, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=EN, label=Fig.12, caption=
Time-frequency domain parameters of ultrasonic echoes on the silicone rubber-XLPE interface under different pressures, figureFileSmall=JdfnQa93HWZCKkSGziVHIw==, figureFileBig=n3h6iFGm6PaY0FBi7POHYA==, tableContent=null), ArticleFig(id=1304922116860703179, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=CN, label=图12, caption=
不同压力下硅橡胶-XLPE界面超声回波时频域参数, figureFileSmall=JdfnQa93HWZCKkSGziVHIw==, figureFileBig=n3h6iFGm6PaY0FBi7POHYA==, tableContent=null), ArticleFig(id=1304922116965560780, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=EN, label=Fig.13, caption=
Time-frequency domain parameters of ultrasonic echoes on the inner semiconductive layer-XLPE interface and stress cone-XLPE interface under different pressures, figureFileSmall=01jppE/OIZEMJsKp8n6njA==, figureFileBig=8xmFq6+IuMG0ZmAsXFk6RQ==, tableContent=null), ArticleFig(id=1304922117045252557, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=CN, label=图13, caption=
不同压力下内半导电层-XLPE、应力锥-XLPE界面超声回波时频域参数, figureFileSmall=01jppE/OIZEMJsKp8n6njA==, figureFileBig=8xmFq6+IuMG0ZmAsXFk6RQ==, tableContent=null), ArticleFig(id=1304922117154304462, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=EN, label=Fig.14, caption=
Nonlinear coefficients of various composite interfaces under different interface pressures, figureFileSmall=GkZzaSzH17ygNqat23b6Bg==, figureFileBig=tP2/J9OQ1qO0kFlMnkybIA==, tableContent=null), ArticleFig(id=1304922117271744975, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=CN, label=图14, caption=
各复合界面在不同界面压力下的非线性系数, figureFileSmall=GkZzaSzH17ygNqat23b6Bg==, figureFileBig=tP2/J9OQ1qO0kFlMnkybIA==, tableContent=null), ArticleFig(id=1304922117380796880, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=EN, label=Fig.15, caption=
Time-frequency domain ultrasonic echo signals before and after the application of silicone grease, figureFileSmall=ZO7/T+JodMITFPpHUiCsWA==, figureFileBig=9tlZr4T5gBR9Pzw21nuDpA==, tableContent=null), ArticleFig(id=1304922117515014609, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=CN, label=图15, caption=
涂敷硅脂前后超声回波时频域信号, figureFileSmall=ZO7/T+JodMITFPpHUiCsWA==, figureFileBig=9tlZr4T5gBR9Pzw21nuDpA==, tableContent=null), ArticleFig(id=1304922117582123474, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=EN, label=Table 1, caption=
Ultrasonic echo signal-to-noise ratio under different decomposition levels and wavelet basis functions
, figureFileSmall=null, figureFileBig=null, tableContent=
| 信噪比RSN/dB |
|---|
| 分解层数 | dB1 | dB2 | dB3 | dB4 | dB5 | dB6 | dB7 | dB8 |
| 1 | 38.04 | 38.02 | 37.99 | 38.02 | 38.12 | 38.2 | 38.16 | 38.12 |
| 2 | 39.78 | 40.06 | 40.00 | 40.14 | 40.13 | 40.01 | 40.16 | 39.96 |
| 3 | 39.34 | 41.98 | 41.93 | 42.17 | 42.11 | 42.54 | 42.12 | 42.21 |
| 4 | 37.72 | 43.96 | 44.33 | 43.75 | 44.63 | 44.32 | 43.68 | 44.07 |
| 5 | 33.7 | 45.15 | 46.48 | 46.63 | 45.54 | 45.55 | 45.35 | 45.10 |
| 6 | 30.24 | 44.36 | 49.52 | 49.08 | 49.29 | 48.02 | 49.95 | 47.26 |
| 7 | 24.37 | 38.37 | 43.99 | 48.45 | 50.12 | 54.09 | 54.94 | 49.64 |
| 8 | 19.54 | 34.08 | 39.46 | 47.92 | 45.25 | 54.7 | 57.72 | 57.43 |
| 9 | 15.01 | 26.95 | 34.68 | 43.64 | 43.82 | 54.75 | 55.35 | 58.88 |
| 10 | 16.64 | 22.03 | 34.19 | 37.89 | 43.37 | 40.16 | 56.00 | 58.31 |
), ArticleFig(id=1304922117645038035, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=CN, label=表1, caption=
不同分解层数和小波基函数下的超声回波信噪比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 信噪比RSN/dB |
|---|
| 分解层数 | dB1 | dB2 | dB3 | dB4 | dB5 | dB6 | dB7 | dB8 |
| 1 | 38.04 | 38.02 | 37.99 | 38.02 | 38.12 | 38.2 | 38.16 | 38.12 |
| 2 | 39.78 | 40.06 | 40.00 | 40.14 | 40.13 | 40.01 | 40.16 | 39.96 |
| 3 | 39.34 | 41.98 | 41.93 | 42.17 | 42.11 | 42.54 | 42.12 | 42.21 |
| 4 | 37.72 | 43.96 | 44.33 | 43.75 | 44.63 | 44.32 | 43.68 | 44.07 |
| 5 | 33.7 | 45.15 | 46.48 | 46.63 | 45.54 | 45.55 | 45.35 | 45.10 |
| 6 | 30.24 | 44.36 | 49.52 | 49.08 | 49.29 | 48.02 | 49.95 | 47.26 |
| 7 | 24.37 | 38.37 | 43.99 | 48.45 | 50.12 | 54.09 | 54.94 | 49.64 |
| 8 | 19.54 | 34.08 | 39.46 | 47.92 | 45.25 | 54.7 | 57.72 | 57.43 |
| 9 | 15.01 | 26.95 | 34.68 | 43.64 | 43.82 | 54.75 | 55.35 | 58.88 |
| 10 | 16.64 | 22.03 | 34.19 | 37.89 | 43.37 | 40.16 | 56.00 | 58.31 |
), ArticleFig(id=1304922117712146900, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=EN, label=Table 2, caption=
Fitting curves of nonlinear coefficients and interface pressure for various composite interfaces
, figureFileSmall=null, figureFileBig=null, tableContent=
| 复合界面类型 | 拟合曲线 | 拟合优度 |
|---|
| 硅橡胶-XLPE | | 0.90 |
| 内半导电层-XLPE | | 0.96 |
| 应力锥-XLPE | | 0.95 |
), ArticleFig(id=1304922117762478549, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=CN, label=表2, caption=
各复合界面非线性系数与界面压力拟合曲线
, figureFileSmall=null, figureFileBig=null, tableContent=
| 复合界面类型 | 拟合曲线 | 拟合优度 |
|---|
| 硅橡胶-XLPE | | 0.90 |
| 内半导电层-XLPE | | 0.96 |
| 应力锥-XLPE | | 0.95 |
), ArticleFig(id=1304922117825393110, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=EN, label=Table 3, caption=
Comparison between nonlinear ultrasonic measurement results and sensor measurement results
, figureFileSmall=null, figureFileBig=null, tableContent=
| 复合界面类型 | 界面压力/MPa | 误差/% |
|---|
| 非线性超声测量值 | 内置传感器测量值 |
|---|
| 硅橡胶-XLPE | 0.247 | 0.223 | 10.76 |
| 内半导电层-XLPE | 0.269 | 0.248 | 8.47 |
| 应力锥-XLPE | 0.257 | 0.239 | 7.53 |
), ArticleFig(id=1304922117879919063, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922012833575191, language=CN, label=表3, caption=
非线性超声测量值与传感器测量值结果对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 复合界面类型 | 界面压力/MPa | 误差/% |
|---|
| 非线性超声测量值 | 内置传感器测量值 |
|---|
| 硅橡胶-XLPE | 0.247 | 0.223 | 10.76 |
| 内半导电层-XLPE | 0.269 | 0.248 | 8.47 |
| 应力锥-XLPE | 0.257 | 0.239 | 7.53 |
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