发布求助
文献互助 智能选刊 最新文献

2019 Far East NDT New Technology & Application Forum (FENDT)最新文献

筛选
英文 中文
Mechanism Hybrid EMAT and Eddy Current Sensing Detection for Surface and Internal Defects NDT EMAT和涡流传感混合检测在表面和内部缺陷无损检测中的应用
2019 Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2019-06-01 DOI: 10.1109/FENDT47723.2019.8962813
W. Guo, B. Gao, G. Tian, Dan Si, Q. Ma, Chang Rong Yang
{"title":"Mechanism Hybrid EMAT and Eddy Current Sensing Detection for Surface and Internal Defects NDT","authors":"W. Guo, B. Gao, G. Tian, Dan Si, Q. Ma, Chang Rong Yang","doi":"10.1109/FENDT47723.2019.8962813","DOIUrl":"https://doi.org/10.1109/FENDT47723.2019.8962813","url":null,"abstract":"Fast and efficient comprehensive inspection of oil and gas pipelines is a critical and challenging task. This paper proposes a novel mechanism hybrid non-destructive testing (NDT) method of Electromagnetic Acoustic Transducer (EMAT)and Pulsed Eddy Current Testing (PECT)for detecting surface and internal defects. This transceiver-integrated sensor simultaneously excites pulsed eddy current and ultrasonic waves and picks up composite signals. In particular, the ultrasound detects deep defects, and the eddy current detect surface defects. Numerical simulation and experiments have been carried out on the detection of hybrid defects. The feasibility, efficiency and reliability of the proposed method were verified.","PeriodicalId":232572,"journal":{"name":"2019 Far East NDT New Technology & Application Forum (FENDT)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123381381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Phase-Controlled Focusing Method of Ultrasound Guided Wave Based on Synchronous Control of Time Delay and Amplitude Factor 基于时延和幅度因子同步控制的超声导波相位控制聚焦方法
2019 Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2019-06-01 DOI: 10.1109/FENDT47723.2019.8962875
Wang Xin, Zhang Jin, Zhao Liang, Dong Zihua, Zhao Shuaiye
{"title":"Phase-Controlled Focusing Method of Ultrasound Guided Wave Based on Synchronous Control of Time Delay and Amplitude Factor","authors":"Wang Xin, Zhang Jin, Zhao Liang, Dong Zihua, Zhao Shuaiye","doi":"10.1109/FENDT47723.2019.8962875","DOIUrl":"https://doi.org/10.1109/FENDT47723.2019.8962875","url":null,"abstract":"In the detection of gun barrel defects with ultrasonic guided wave, the echo coefficients are often used to express the influence of defects on the propagation characteristics of guided waves. The echo coefficient is closely related to the size of defects. If the defect in the barrel is small, the defect echo of the guided wave will be submerged in the noise, so that the value of the echo coefficient cannot be obtained by the detection, resulting in missed and false detections. Therefore, in order to improve the accuracy of ultrasonic guided wave detection technology, a phase-controlled focusing detection method of ultrasonic guided wave based on synchronous control of time delay and amplitude factor is proposed through scientific analysis methods such as theoretical analysis, numerical simulation and simulation calculation. This method can improve the signal-to-noise ratio and echo coefficient of the echo signal, enhance the ability to detect small defects in the barrel with the guided wave. (Abstract)","PeriodicalId":232572,"journal":{"name":"2019 Far East NDT New Technology & Application Forum (FENDT)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121301652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
FENDT 2019 Front Matters FENDT 2019前沿问题
2019 Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2019-06-01 DOI: 10.1109/fendt47723.2019.8962586
{"title":"FENDT 2019 Front Matters","authors":"","doi":"10.1109/fendt47723.2019.8962586","DOIUrl":"https://doi.org/10.1109/fendt47723.2019.8962586","url":null,"abstract":"","PeriodicalId":232572,"journal":{"name":"2019 Far East NDT New Technology & Application Forum (FENDT)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126142143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Research on Composite Nondestructive Testing Sensor of Boiler Water Wall Tubes 锅炉水冷壁管复合无损检测传感器的研究
2019 Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2019-06-01 DOI: 10.1109/FENDT47723.2019.8962854
Shu-juan Wang, Pu Zhao, Meng-chun Zhang, Ce Li
{"title":"A Research on Composite Nondestructive Testing Sensor of Boiler Water Wall Tubes","authors":"Shu-juan Wang, Pu Zhao, Meng-chun Zhang, Ce Li","doi":"10.1109/FENDT47723.2019.8962854","DOIUrl":"https://doi.org/10.1109/FENDT47723.2019.8962854","url":null,"abstract":"In this paper, a new composite NDT testing sensor for boiler water wall tubes defect detection is designed which using a combination of the electromagnetic acoustic transducer (EMAT) method, the magnetic flux leakage (MFL) method and the pulse eddy current testing (PECT) method. The purpose of the research is to make up for the limitation of the traditional single NDT method in terms of defect detection capability. Firstly, through analyzing the detection mechanism, establish the equivalent finite element of the composite detection sensor. Secondly, based on the numerical simulation, the working point for three different NDT methods and the structural parameters of composite detection sensor is determined. Thirdly, the experiment of the composite detection sensor is conducted cooperating with mechanical devices and testing equipment, and four types of defects on the water wall tubes are successfully identified. The experimental results proved the new hybrid NDT testing sensor can meet requirement of full-scale defects inspection for boiler water wall tubes.","PeriodicalId":232572,"journal":{"name":"2019 Far East NDT New Technology & Application Forum (FENDT)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126431107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Phased-Array Laser Ultrasonic Testing with Sparse Total Focusing Imaging Method 稀疏全聚焦成像法相控阵激光超声检测
2019 Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2019-06-01 DOI: 10.1109/FENDT47723.2019.8962835
Xing Kou, C. Pei, Shangzi Wu, Zhenmao Chen
{"title":"Phased-Array Laser Ultrasonic Testing with Sparse Total Focusing Imaging Method","authors":"Xing Kou, C. Pei, Shangzi Wu, Zhenmao Chen","doi":"10.1109/FENDT47723.2019.8962835","DOIUrl":"https://doi.org/10.1109/FENDT47723.2019.8962835","url":null,"abstract":"In order to further improve the detectability of laser ultrasonic testing method for internal defects of materials, this paper studies a new phased array laser ultrasonic detection and imaging method based on the full matrix capture technology and total focusing method. Based on the finite element method, a numerical model of full matrix laser ultrasonic detection and signal sampling is developed to acquire the signal data of full matrix laser ultrasonic testing, and then the corresponding program of the total focusing method algorithm is developed to realize the visual imaging detection of different defects in the specimen based on the total focusing method. Subsequently, in order to improve the efficiency of laser ultrasonic testing with full matrix phased array, a full matrix laser ultrasonic testing method with sparse array is proposed, and a signal reproduction method based on sparse array is developed to expand sparse array to dense array signal, thus achieving high quality imaging of internal defects, and effectively improving the detection efficiency of this method.","PeriodicalId":232572,"journal":{"name":"2019 Far East NDT New Technology & Application Forum (FENDT)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130179658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Laser line generation for optimized interaction with hidden defects in active thermography 主动热成像中与隐藏缺陷优化相互作用的激光线生成
2019 Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2019-06-01 DOI: 10.1109/FENDT47723.2019.8962578
Shuanglu Yu, Hao Sui, Hongna Zhu, U. Netzelmann, D. Müller
{"title":"Laser line generation for optimized interaction with hidden defects in active thermography","authors":"Shuanglu Yu, Hao Sui, Hongna Zhu, U. Netzelmann, D. Müller","doi":"10.1109/FENDT47723.2019.8962578","DOIUrl":"https://doi.org/10.1109/FENDT47723.2019.8962578","url":null,"abstract":"In this paper, an active thermal imaging technique using a laser as an excitation source is used to detect aluminum specimens containing artificial defects. The presence of defects in the local excitation of the laser can produce better edge effects, using different laser excitation methods to improve edge effects. In the experiment, the laser scanning method is designed according to the characteristics of artificial defects, and the experimental data is analyzed. PPT and Sobel filtering are used to further data processing to obtain clearer defect edges and detect the detailed features of the defects. The study found that the detection effect is the best when the laser power and pulse width are large.","PeriodicalId":232572,"journal":{"name":"2019 Far East NDT New Technology & Application Forum (FENDT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130582953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Effect of Temperature on Nonlinearity of Ultrasonic Waves in Metallic Solids 温度对金属固体中超声波非线性的影响
2019 Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2019-06-01 DOI: 10.1109/FENDT47723.2019.8962738
Xiaochuan Niu, Li-qiang Zhu, Zu-jun Yu, Bo Xing
{"title":"Effect of Temperature on Nonlinearity of Ultrasonic Waves in Metallic Solids","authors":"Xiaochuan Niu, Li-qiang Zhu, Zu-jun Yu, Bo Xing","doi":"10.1109/FENDT47723.2019.8962738","DOIUrl":"https://doi.org/10.1109/FENDT47723.2019.8962738","url":null,"abstract":"The effect of temperature on the nonlinearity of ultrasonic waves propagating in metallic solids was studied experimentally. The metal block and rail were used as experimental objects respectively. The nonlinear parameters of ultrasonic bulk waves propagating in a metal block and ultrasonic guided waves propagating in a rail were measured during the temperature change process. The experimental results indicate that temperature has obvious influence on the nonlinearity of ultrasonic bulk waves or guided waves propagating in metallic solids. The ultrasonic nonlinear parameter of metallic solids increases with the increase of temperature and decreases with the decrease of temperature, which suggesting that it is necessary to compensate the effect of temperature when using nonlinear ultrasonic technology to detect relevant structures.","PeriodicalId":232572,"journal":{"name":"2019 Far East NDT New Technology & Application Forum (FENDT)","volume":"2013 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127460742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Bolt Axial Stress Detection and Calibration by Ultrasound Shear and Longitudinal Wave 超声剪切纵波法检测螺栓轴向应力并标定
2019 Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2019-06-01 DOI: 10.1109/FENDT47723.2019.8962775
Zhi-xiang Li, Chunguang Xu, De-zhi Li
{"title":"Bolt Axial Stress Detection and Calibration by Ultrasound Shear and Longitudinal Wave","authors":"Zhi-xiang Li, Chunguang Xu, De-zhi Li","doi":"10.1109/FENDT47723.2019.8962775","DOIUrl":"https://doi.org/10.1109/FENDT47723.2019.8962775","url":null,"abstract":"Based on the theory of acoustic elasticity, the relationship between ultrasonic body wave (shear wave and longitudinal wave) and stress is studied, and the technology of bolt axial stress detection is analyzed. In order to ensure the accuracy of the detection value and achieve traceability, the calibration technology of bolt axial stress ultrasonic body wave detection is studied. The temperature compensation algorithm and the precise measurement algorithm of acoustic time difference are designed by means of spontaneous selfcollection. The feasibility of the absolute calibration method of the axial force meter is verified by experiments. The ultrasonic shear and longitudinal wave testing and calibration system for bolt axial stress is established, which is applied to the axial stress testing of buildings, bridges and power stations.","PeriodicalId":232572,"journal":{"name":"2019 Far East NDT New Technology & Application Forum (FENDT)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127571558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
A Locating Algorithm of Train Wheel Flaws in Ultrasonic Images Based on Cross-Correlation and Wavelet Packet Denoising 基于互相关和小波包去噪的超声图像中列车车轮缺陷定位算法
2019 Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2019-06-01 DOI: 10.1109/FENDT47723.2019.8962858
Ru-dan Zheng, Yang-qing Gao, Jin-long Li, Xiaorong Gao
{"title":"A Locating Algorithm of Train Wheel Flaws in Ultrasonic Images Based on Cross-Correlation and Wavelet Packet Denoising","authors":"Ru-dan Zheng, Yang-qing Gao, Jin-long Li, Xiaorong Gao","doi":"10.1109/FENDT47723.2019.8962858","DOIUrl":"https://doi.org/10.1109/FENDT47723.2019.8962858","url":null,"abstract":"The ultrasonic phased array inspection technology has been applied to the train wheels detection. Because of the environment and characteristics of ultrasonic phased array testing, many testing images are interfered by serious noise and clutter interference, so it is difficult to identify all the flaws and will take inspector a long time. This paper presents an automatic locating algorithm of train wheel flaws in ultrasonic images based on cross-correlation and Wavelet packet denoising. Firstly, preprocessing is acted on the images, including de-noising and adaptive threshold processing. Secondly, as the echo images of web hole have periodic feature in spatial domain, image cross-correlation theory is used for extracting the period, then the echo images of web hole is removed from the B-scan images. Finally, another threshold is needed to remove small bright areas, and then the location information of flaws is obtained. Experimental results show that the proposed algorithm can effectively locate the flaws, and the average locating accuracy is higher than 96%.","PeriodicalId":232572,"journal":{"name":"2019 Far East NDT New Technology & Application Forum (FENDT)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134402694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Determination of hardness in welded rail surface via Barkhausen noise 巴克豪森噪声法测定焊接钢轨表面硬度
2019 Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2019-06-01 DOI: 10.1109/FENDT47723.2019.8962626
Xiang Zhang, Sen Qiao, Jianping Peng, Xiaorong Gao, An Dai, Wei Li
{"title":"Determination of hardness in welded rail surface via Barkhausen noise","authors":"Xiang Zhang, Sen Qiao, Jianping Peng, Xiaorong Gao, An Dai, Wei Li","doi":"10.1109/FENDT47723.2019.8962626","DOIUrl":"https://doi.org/10.1109/FENDT47723.2019.8962626","url":null,"abstract":"At present, the railway mainly uses eutectoid pearlite rails. The hyper-eutectoid steel improves the strength and hardness of the rail compared to the eutectoid pearlite steel, and is now laid on heavy-duty railway lines. Aiming at the failure of welded rail, welding surface was tested by the magnetic Barkhausen noise (MBN) method. Combined with the surface hardness test and metallographic analysis, hardness changed and structural transformation caused by flash welding was analyzed from the microscopic point of view. The relationship between hardness and MBN signal was quantitatively analyzed, results showed that there was a good correlation between two parameters.","PeriodicalId":232572,"journal":{"name":"2019 Far East NDT New Technology & Application Forum (FENDT)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129180938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信
小红书