Russian Journal of Nondestructive Testing最新文献_第6页

Studying the Evolution of the Power Spectrum of Acoustic Emission during Solid Body Destruction 研究固体破坏过程中声波发射功率谱的演变

IF 0.9 4区材料科学

Russian Journal of Nondestructive Testing Pub Date : 2024-07-27 DOI: 10.1134/S1061830924601478

V. T. Belikov

引用次数: 0

Distribution Network Cable Detection Based on Terahertz Pulse and Imaging 基于太赫兹脉冲和成像的配电网电缆探测

IF 0.9 4区材料科学

Russian Journal of Nondestructive Testing Pub Date : 2024-07-27 DOI: 10.1134/S1061830923601472

Guowei Li, Siming Zeng, Qing Wang, Zhenwei Zhang

{"title":"Distribution Network Cable Detection Based on Terahertz Pulse and Imaging","authors":"Guowei Li, Siming Zeng, Qing Wang, Zhenwei Zhang","doi":"10.1134/S1061830923601472","DOIUrl":"10.1134/S1061830923601472","url":null,"abstract":"Moisture of high voltage distribution network cables will cause major safety hazard, but there is no effective means to detect and analyze the internal humidity state of the cables. Therefore, it is urgent to develop a new nondestructive detection method to evaluate the waterproof performance of distribution network cables and their connectors. The internal structure of the cable is a multilayer structure composed of wires, cross-linked polyethylene insulation layer, and silicone rubber insulation sheath. We used the reflective terahertz pulse signal to detect the internal states of the cable, and judge whether it contains water stains according to the echo characteristics. In addition, three-dimensional data was obtained through cylindrical coordinate scanning and terahertz images were reconstructed based on feature information, which were consistent with the distribution of water stains between the cable insulation sheath and cross-linked polyethylene insulation layer. The results show that the terahertz technology can realize the high sensitivity detection of cable moisture state, which is of great significance in the power and transmission industry.","PeriodicalId":764,"journal":{"name":"Russian Journal of Nondestructive Testing","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141769993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of Two Methods for Calibrating a Wedge-Mounted Ultrasonic Antenna Array 校准楔形安装超声波天线阵的两种方法分析

IF 0.9 4区材料科学

Russian Journal of Nondestructive Testing Pub Date : 2024-07-27 DOI: 10.1134/S1061830924700621

A. E. Bazulin, E. G. Bazulin, A. Kh. Vopilkin, S. A. Kokolev, S. V. Romashkin, D. S. Tikhonov, A. A. Efimovskaya

{"title":"Analysis of Two Methods for Calibrating a Wedge-Mounted Ultrasonic Antenna Array","authors":"A. E. Bazulin, E. G. Bazulin, A. Kh. Vopilkin, S. A. Kokolev, S. V. Romashkin, D. S. Tikhonov, A. A. Efimovskaya","doi":"10.1134/S1061830924700621","DOIUrl":"10.1134/S1061830924700621","url":null,"abstract":"The image quality of reflectors reconstructed using digital focusing antenna technology or a phased array antenna depends on the accuracy of determining such wedge parameters as X-value, path, longitudinal wave speed, and angle of probe. These parameters do not always correspond to their rated values both due to the imprecision of manufacturing wedges and placing antenna array elements in the housing and due to the wear of wedges during operation. The present paper discusses two types of calibration of a wedge-mounted antenna array, viz., variational and simplified. The principle of variational calibration is to minimize the objective function that describes the difference between the echo signals measured by the antenna array from side drilled holes, for example, in an ISO 19675 PAUT (phased array ultrasonic testing) calibration block, and the calculated echo signals. Simplified calibration is based on analyzing the arrival time of echo signals from the wedge base; this makes it possible to estimate the path and angle of the wedge knowing the velocity of a longitudinal wave in it. The operation of variational calibration is tested on echo signals calculated in CIVA software to demonstrate the multiravine structure of the objective function. An assessment is made of the required accuracy in determining all four wedge parameters. The results of calibrating an antenna array on four wedges are presented and the results of variational and simplified calibrations are verified. The accuracy of determining wedge parameters using variational calibration is more than twice as good as the results obtained with simplified calibration. However, the time required to carry out calculations for variational calibration is more than three orders of magnitude longer than for simplified calibration.","PeriodicalId":764,"journal":{"name":"Russian Journal of Nondestructive Testing","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141769988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Calculating the Magnetic Field Strength Inside and Outside of an Infinite Cylinder Placed in an Arbitrary External Field 计算置于任意外磁场中的无限圆柱体内外的磁场强度

IF 0.9 4区材料科学

Russian Journal of Nondestructive Testing Pub Date : 2024-07-27 DOI: 10.1134/S1061830924601703

V. V. Dyakin, O. V. Kudryashova, V. Y. Raevskii

引用次数: 0

A Quantitative Review of Air-Coupled Ultrasonic Lamb Wave Analysis Based on Signal Transformations 基于信号变换的空气耦合超声波 Lamb 波定量分析综述

IF 0.9 4区材料科学

Russian Journal of Nondestructive Testing Pub Date : 2024-05-29 DOI: 10.1134/S1061830923601058

Bingyang Han, Akam M. Omer, Tiantian Shao, Li He, Xia Ding, Zhengyi Long, Junwei Fu, Hai Zhang, Yuxia Duan

{"title":"A Quantitative Review of Air-Coupled Ultrasonic Lamb Wave Analysis Based on Signal Transformations","authors":"Bingyang Han, Akam M. Omer, Tiantian Shao, Li He, Xia Ding, Zhengyi Long, Junwei Fu, Hai Zhang, Yuxia Duan","doi":"10.1134/S1061830923601058","DOIUrl":"10.1134/S1061830923601058","url":null,"abstract":"Lamb wave detection is increasingly being utilized in the industry due to its extensive coverage area, high signal detection efficiency, and ease of operation. This paper offers a quantitative review of eight signal transformation methods utilized for de-noising and time-frequency analysis of Lamb waves, which include Fourier transform (FT), singular value decomposition (SVD), short-time Fourier transform (STFT), Wigner–Ville distribution (WVD), wavelet transform (WT), S-transform, Hilbert–Huang transform (HHT), as well as empirical mode decomposition (EMD) and its improved algorithms. The performances of signal transformations on denoising and defect location are assessed quantitatively using the signal-to-noise ratio (SNR) and time-of-flight (ToF). The results demonstrate that the complete ensemble EMD with adaptive noise (CEEMDAN) is able to suppress noise effectively while maintaining the primary features of the signal in an adaptive manner. Additionally, the continuous WT can obtain a more accurate time-frequency distribution, thereby providing the superior analytical ability for dispersive lamb wave signals with respect to positioning on the time axis.","PeriodicalId":764,"journal":{"name":"Russian Journal of Nondestructive Testing","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141165793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of Test Results and Test Quality during Certification of Non-Destructive Testing Specialists 无损检测专家认证期间的检测结果和检测质量分析

IF 0.9 4区材料科学

Russian Journal of Nondestructive Testing Pub Date : 2024-05-29 DOI: 10.1134/S1061830924600205

V. V. Murav’ev, L. V. Volkova, O. V. Murav’eva, S. A. Murashov

{"title":"Analysis of Test Results and Test Quality during Certification of Non-Destructive Testing Specialists","authors":"V. V. Murav’ev, L. V. Volkova, O. V. Murav’eva, S. A. Murashov","doi":"10.1134/S1061830924600205","DOIUrl":"10.1134/S1061830924600205","url":null,"abstract":"This article analyzes the results of personal certification for eddy current testing of railway facilities. The influences of education level, the work experience, the candidate age on the qualifying examinations results are considered. The conformity between test task difficulties and certification candidate training is analyzed with Rasch method. The characteristic curves of test task difficulties and the characteristic curves of candidate training levels are constructed. The results general and special examinations of 2020 and 2021 are analyzed to identify extreme test questions. The research results enable to assess the candidate training and the test task difficulties through latent parameters measured as logit unit. The analysis identified test tasks with overstated and understated task difficulty logits compared with the logits of the candidate training, assessed the correspondence between test difficulties and training candidate level, and assessed a distribution uniformity of the tasks difficulty. The required training logit of candidates for the certification is calculated for successful passing general and special exam tests. The getting results give a basis for further analysis of the tasks complexity, identification the reasons for the insufficiency of the auditory material familiarization for the tasks with low rate of response, for making adjustments to the consulting sessions, as well as the content and form of the test.","PeriodicalId":764,"journal":{"name":"Russian Journal of Nondestructive Testing","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141165786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental Study of Ultrasonic Wave Propagation in a Long Waveguide Sensor for Fluid-Level Sensing 用于液位传感的长波导传感器中超声波传播的实验研究

IF 0.9 4区材料科学

Russian Journal of Nondestructive Testing Pub Date : 2024-05-29 DOI: 10.1134/S1061830923600880

Abhishek Kumar, Suresh Periyannan

{"title":"Experimental Study of Ultrasonic Wave Propagation in a Long Waveguide Sensor for Fluid-Level Sensing","authors":"Abhishek Kumar, Suresh Periyannan","doi":"10.1134/S1061830923600880","DOIUrl":"10.1134/S1061830923600880","url":null,"abstract":"This work reports an ultrasonic long waveguide sensor for measuring the fluid level utilizing longitudinal L(0, 1), torsional T(0, 1), and flexural F(1, 1) wave modes. These wave modes were transmitted and received simultaneously using stainless-steel wire. A long waveguide (>12 m) covers a broader region of interest and is suitable in the process industry’s hostile environment applications, “fluid levels and temperature measurements.” In this work, we used fluids “diesel, water, and glycerin” for measuring fluid levels based on the sensor’s reflection factors from time domain and frequency domain signals. We examined the impact of wave mode attenuation effects for long waveguide sensor design while changing the waveguide lengths. Initially, we obtained the L(0, 1) and T(0, 1) modes reflections from the 12.6 m waveguide length when one end of the long waveguide was fixed with a shear transducer at 45° orientation. Subsequently, we want to study and identify all wave modes (especially F mode) travel distances. Hence, we would like to investigate the guided wave propagation characteristics (attenuation, ultrasonic velocity, and frequency of all wave modes) in the long waveguide while cutting systematically at intervals of 1 m, starting from its original length of the waveguide 12.6 m by analyzing the A-scan signals of various lengths of a single waveguide. This simple and cost-effective technique can monitor the high fluid depths and temperature in power plants, oil, and petrochemical industries while designing a long waveguide sensor with appropriate ultrasonic parameters.","PeriodicalId":764,"journal":{"name":"Russian Journal of Nondestructive Testing","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141165790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis and NDT Applications of a Gas Discharge Electroacoustic Transducer 气体放电电声传感器的分析和无损检测应用

IF 0.9 4区材料科学

Russian Journal of Nondestructive Testing Pub Date : 2024-05-29 DOI: 10.1134/S106183092470061X

D. A. Derusova, V. P. Vavilov, V. O. Nekhoroshev, V. Yu. Shpil’noy, D. A. Zuza, E. N. Kolobova

{"title":"Analysis and NDT Applications of a Gas Discharge Electroacoustic Transducer","authors":"D. A. Derusova, V. P. Vavilov, V. O. Nekhoroshev, V. Yu. Shpil’noy, D. A. Zuza, E. N. Kolobova","doi":"10.1134/S106183092470061X","DOIUrl":"10.1134/S106183092470061X","url":null,"abstract":"In this study, a gas discharge electroacoustic transducer (GDEAT) based on a pulsed electric discharge in the air under atmospheric pressure has been investigated. The acoustic characteristic of GDEATs have been determined in the frequency range from 40 Hz to 4 MHz by evaluating acoustic pressure and recording amplitude–frequency characteristics of membranes. The electrothermoacoustic processes have been studied in open type gas discharge systems where the electrode space is in a direct contact with the environment. Some features of using the above-mentioned GDEATs in material nondestructive testing (NDT) have been demonstrated. It has been shown that, on the one hand, the wear of both electrodes and insulation limits the work life of transducer’s electrode system; however, on the other hand, this may lead to deposition of microparticles on the test object surface. The wear of the electrode system was evaluated quantitatively. The results of the chemical analysis of the deposited microparticles are presented. The possibility of using GDEATs for noncontact stimulation of local resonant vibrations in subsurface defects and visualizing vibrations by means of laser Doppler vibrometry is shown in the case of NDT of a glass fiber composite.","PeriodicalId":764,"journal":{"name":"Russian Journal of Nondestructive Testing","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141166514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modern Trends in the Application of Thermoelectric Method in Nondestructive Testing (Review) 热电法在无损检测中的现代应用趋势（综述）

IF 0.9 4区材料科学

Russian Journal of Nondestructive Testing Pub Date : 2024-05-29 DOI: 10.1134/S1061830924600230

A. I. Soldatov, A. A. Soldatov, M. A. Kostina

{"title":"Modern Trends in the Application of Thermoelectric Method in Nondestructive Testing (Review)","authors":"A. I. Soldatov, A. A. Soldatov, M. A. Kostina","doi":"10.1134/S1061830924600230","DOIUrl":"10.1134/S1061830924600230","url":null,"abstract":"The paper provides an overview of the main directions of using the thermoelectric testing method in various spheres of the national economy. The thermoelectric method is most widely used in industry. There are publications on the application of the thermoelectric method to quality control of turning and friction stir welding. It is shown that the thermoelectric method makes it possible to increase the reliability of testing and, based on testing data, ensure optimal modes of the technological process of metalworking and welding. A number of papers are devoted to the application of the thermoelectric method to plastic deformation testing; the dependence of thermal EMF on the degree of plastic deformation is revealed. Recently, publications have appeared on the application of the thermoelectric method to testing the thermal resistance of the “power semiconductor device housing–thermal interface–cooling radiator” structure. This design is very common in electronic technology. In addition, there are papers on the use of the thermoelectric method to test the transient resistance of contacts in the power supply network. It is shown that with an increase in contact resistance, the value of thermal EMF increases proportionally; this can be used to prevent emergencies in power supply networks. The thermoelectric method has also been successfully applied to diagnosing the degree of titanium hydrogen saturation. The dependence of the thermal EMF on the degree of hydrogenation has been revealed. The use of the thermoelectric method is not limited to the field of industrial production. The thermoelectric method is successfully used in medicine for the label-free detection of nucleic acid sequences, for the temperature diagnosis of human teeth, as well as for the diagnosis of inflammatory processes in the human body.","PeriodicalId":764,"journal":{"name":"Russian Journal of Nondestructive Testing","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141165696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reducing Dead Zone in Ultrasonic Time-of-Flight Diffraction (TOFD): A Review 减少超声飞行时间衍射 (TOFD) 的死区：综述

IF 0.9 4区材料科学

Russian Journal of Nondestructive Testing Pub Date : 2024-05-29 DOI: 10.1134/S1061830923601265

Shijie Jin, Xu Sun, Zhongbing Luo

引用次数: 0