Pub Date : 2023-09-01DOI: 10.14489/td.2023.09.pp.065-070
A. Kireev, M. Kireeva
The work is devoted to topical issues of increasing the reliability and informativeness of the results of manual ultrasonic inspection of parts and assemblies of technical objects. The paper presents a three-frequency method of ultrasonic flaw detection, which makes it possible to increase the reliability of the non-etalon method for determining the type of discontinuity detected as a result of ultrasonic testing. The developed method makes it possible to determine the type of discontinuities of various types. The NDTRT-26 software product has been developed to automate calculations using the three-frequency method.
{"title":"THREE-FREQUENCY METHOD FOR DETERMINING THE EQUIVALENT SIZE OF THE DISCONTINUITY DURING MANUAL ULTRASOUND CONTROL","authors":"A. Kireev, M. Kireeva","doi":"10.14489/td.2023.09.pp.065-070","DOIUrl":"https://doi.org/10.14489/td.2023.09.pp.065-070","url":null,"abstract":"The work is devoted to topical issues of increasing the reliability and informativeness of the results of manual ultrasonic inspection of parts and assemblies of technical objects. The paper presents a three-frequency method of ultrasonic flaw detection, which makes it possible to increase the reliability of the non-etalon method for determining the type of discontinuity detected as a result of ultrasonic testing. The developed method makes it possible to determine the type of discontinuities of various types. The NDTRT-26 software product has been developed to automate calculations using the three-frequency method.","PeriodicalId":432853,"journal":{"name":"Kontrol'. Diagnostika","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139346253","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}
Pub Date : 2023-09-01DOI: 10.14489/td.2023.09.pp.050-057
A. O. Al-Ghuraibawi, N. V. Vorobev, L. A. Rusinov
Quartz glass tubes are widely used in electronic, chemical, lighting and other industries. They have good heat resistance, light transmission, electrical insulation and chemical stability. To avoid breakage and potential harm to the user, the wall thickness of the quartz glass tube must be checked. At the same time, the control of the parameters of the tubes, in particular the thickness, is usually done manually. This article presents the method and algorithm of the system for monitoring and measuring the thickness of quartz glass tubes in the process of their production based on technical vision. An important advantage of the method is the ability to measure the thickness of the tube even in the presence of possible fluctuations and vibrations during pulling, and it possible to control the difference in thickness along the tube's length. The method provides real-time operation (processing time for one tube image does not exceed 30 ms) with an accuracy of no more than 3 – 5 %.
{"title":"MEASUREMENT AND CONTROL OF THE THICKNESS OF QUARTZ TUBES BY OPTICAL METHOD","authors":"A. O. Al-Ghuraibawi, N. V. Vorobev, L. A. Rusinov","doi":"10.14489/td.2023.09.pp.050-057","DOIUrl":"https://doi.org/10.14489/td.2023.09.pp.050-057","url":null,"abstract":"Quartz glass tubes are widely used in electronic, chemical, lighting and other industries. They have good heat resistance, light transmission, electrical insulation and chemical stability. To avoid breakage and potential harm to the user, the wall thickness of the quartz glass tube must be checked. At the same time, the control of the parameters of the tubes, in particular the thickness, is usually done manually. This article presents the method and algorithm of the system for monitoring and measuring the thickness of quartz glass tubes in the process of their production based on technical vision. An important advantage of the method is the ability to measure the thickness of the tube even in the presence of possible fluctuations and vibrations during pulling, and it possible to control the difference in thickness along the tube's length. The method provides real-time operation (processing time for one tube image does not exceed 30 ms) with an accuracy of no more than 3 – 5 %.","PeriodicalId":432853,"journal":{"name":"Kontrol'. Diagnostika","volume":"98 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139344824","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}
Pub Date : 2023-09-01DOI: 10.14489/td.2023.09.pp.016-026
V. M. Ushakov, A. V. Kobernik, V. V. Mikhalev
The data on certification of specialists of non-destructive testing of nuclear power engineering. It is shown that the largest number of specialists is certified for visual and measuring, capillary and ultrasonic control. Some procedures of training specialists in terms of presenting physical principles of NDT and some provisions of normative documents are considered. Relevant recommendations are given for the purpose of full assimilation of the training material. The main points of normative documents, which should be paid special attention to when studying them, are marked. It is noted that the experience, level of training and education of the certified specialists should be taken into account when giving lectures.
{"title":"EXPERIENCE IN TRAINING SPECIALISTS IN NON-DESTRUCTIVE CONTROL IN THE NUCLEAR POWER INDUSTRY","authors":"V. M. Ushakov, A. V. Kobernik, V. V. Mikhalev","doi":"10.14489/td.2023.09.pp.016-026","DOIUrl":"https://doi.org/10.14489/td.2023.09.pp.016-026","url":null,"abstract":"The data on certification of specialists of non-destructive testing of nuclear power engineering. It is shown that the largest number of specialists is certified for visual and measuring, capillary and ultrasonic control. Some procedures of training specialists in terms of presenting physical principles of NDT and some provisions of normative documents are considered. Relevant recommendations are given for the purpose of full assimilation of the training material. The main points of normative documents, which should be paid special attention to when studying them, are marked. It is noted that the experience, level of training and education of the certified specialists should be taken into account when giving lectures.","PeriodicalId":432853,"journal":{"name":"Kontrol'. Diagnostika","volume":"2014 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139344421","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}
Pub Date : 2023-09-01DOI: 10.14489/td.2023.09.pp.027-041
O. V. Murav’eva, A. F. Brester, A. L. Vladykin
The article presents the results of experimental and theoretical research of the influence of the characteristics of a through-type electromagnetic-acoustic transducer and testing object on the focusing parameters of transverse waves using COMSOL Multiphysics. It is shown that in the radial plane of the section, the formation of a converging spherical front is observed, in the axial plane – close to a flat front. The influence on the focusing factor and the diameter of the focal spot of the diameter of the object, the operating frequency and the quality factor of the excitation pulse is presented. The developed model of the formation of the focus zone of the through-type EMAT can be used in the analysis of the acoustic path of the mirror-shadow method of multiple shadow, depending on the characteristics of the object and control parameters.
{"title":"REGULARITIES OF THE FIELD FOCUS OF THE THROUGH-TYPE ELECTROMAGNETIC ACOUSTIC TRANSDUCER OF TRANSVERSE WAVES","authors":"O. V. Murav’eva, A. F. Brester, A. L. Vladykin","doi":"10.14489/td.2023.09.pp.027-041","DOIUrl":"https://doi.org/10.14489/td.2023.09.pp.027-041","url":null,"abstract":"The article presents the results of experimental and theoretical research of the influence of the characteristics of a through-type electromagnetic-acoustic transducer and testing object on the focusing parameters of transverse waves using COMSOL Multiphysics. It is shown that in the radial plane of the section, the formation of a converging spherical front is observed, in the axial plane – close to a flat front. The influence on the focusing factor and the diameter of the focal spot of the diameter of the object, the operating frequency and the quality factor of the excitation pulse is presented. The developed model of the formation of the focus zone of the through-type EMAT can be used in the analysis of the acoustic path of the mirror-shadow method of multiple shadow, depending on the characteristics of the object and control parameters.","PeriodicalId":432853,"journal":{"name":"Kontrol'. Diagnostika","volume":"54 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139346628","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}
Pub Date : 2023-08-01DOI: 10.14489/td.2023.08.pp.040-049
M. Golobokov
Modern liquid thermostats used for checking mercury thermometers reproduce a temperature of no more than 300 °C, while the upper limit of measurements of some types of mercury thermometers reaches 600 °C. The paper theoretically substantiates and experimentally confirms the possibility of checking mercury thermometers in temperature calibrators. The measurement equation has been compiled. The components of the transmission error of the unit of magnitude are estimated. Conditions are formulated that allow a priori to assess the possibility of checking a particular type of thermometer in a particular calibrator. All calculations are made taking into account the changes in the state verification scheme. The design of a special thermometer for studying the heterogeneity of the temperature distribution outside the working area of the calibrator channel is proposed. The dependence of the readings of a special thermometer on the depth of immersion is theoretically estimated. The disadvantages of the currently used method for determining the temperature of the protruding mercury column are noted. It is proposed to measure the temperature of the protruding column with a thermal imager, an accuracy analysis is performed. The results of experimental studies of the inhomogeneity of the temperature distribution outside the working area of the channel of the calibrator KT-2M are presented. The reproducibility of measurement results when checking thermometers in a calibrator and a liquid thermostat is estimated.
{"title":"METROLOGICAL SUPPORT FOR THE VERIFICATION OF MERCURY THERMOMETERS","authors":"M. Golobokov","doi":"10.14489/td.2023.08.pp.040-049","DOIUrl":"https://doi.org/10.14489/td.2023.08.pp.040-049","url":null,"abstract":"Modern liquid thermostats used for checking mercury thermometers reproduce a temperature of no more than 300 °C, while the upper limit of measurements of some types of mercury thermometers reaches 600 °C. The paper theoretically substantiates and experimentally confirms the possibility of checking mercury thermometers in temperature calibrators. The measurement equation has been compiled. The components of the transmission error of the unit of magnitude are estimated. Conditions are formulated that allow a priori to assess the possibility of checking a particular type of thermometer in a particular calibrator. All calculations are made taking into account the changes in the state verification scheme. The design of a special thermometer for studying the heterogeneity of the temperature distribution outside the working area of the calibrator channel is proposed. The dependence of the readings of a special thermometer on the depth of immersion is theoretically estimated. The disadvantages of the currently used method for determining the temperature of the protruding mercury column are noted. It is proposed to measure the temperature of the protruding column with a thermal imager, an accuracy analysis is performed. The results of experimental studies of the inhomogeneity of the temperature distribution outside the working area of the channel of the calibrator KT-2M are presented. The reproducibility of measurement results when checking thermometers in a calibrator and a liquid thermostat is estimated.","PeriodicalId":432853,"journal":{"name":"Kontrol'. Diagnostika","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139353000","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}
Pub Date : 2023-08-01DOI: 10.14489/td.2023.08.pp.004-016
V. N. Danilov
Based on computer simulation of an echo signal from a side drilled hole type reflector during ultrasonic control of the base metal by an angle beam longitudinal wave probe with nominal frequency of 1.8 MHz through transversal-isotropic elastic layer of constant thickness at different values of the anisotropy parameter, it is shown that with an increase in the anisotropy parameter there is a shift of the signal maximum in the direction of increasing the distance to the reflector, which is associated with an increase in the phase velocity of the quasi-longitudinal wave in the layer, and an increase in the maximum value due to a change in the double transformation coefficient when the longitudinal wave passes from the prism of the probe to the layer and back. For a probe with a frequency of 2.5 MHz, an increase in the anisotropy parameter leads to a decrease in the value of the echo maximum, since the increased increase in the attenuation of the quasi-longitudinal wave in the layer is not compensated by a change in the double transformation coefficient. For different nominal angles of probe (45…60°), a noticeable change in the shapes of frequency spectra and echo pulses at different values of the anisotropy parameter has not been established. The effect of increasing the distance from the control surface to the axis of the cylindrical hole at a constant layer thickness on the change of the amplitude of the echo signal in the calculated range of values of the anisotropy parameter is shown.
{"title":"ON THE FEATURES OF THE CHARACTERISTICS OF THE SPECTRUM AND PULSE OF THE ECHO SIGNAL DURING ULTRASONIC CONTROL OF METAL THROUGH THE FUSED LAYER BY ANGLE BEAM LONGITUDINAL WAVE PROBES","authors":"V. N. Danilov","doi":"10.14489/td.2023.08.pp.004-016","DOIUrl":"https://doi.org/10.14489/td.2023.08.pp.004-016","url":null,"abstract":"Based on computer simulation of an echo signal from a side drilled hole type reflector during ultrasonic control of the base metal by an angle beam longitudinal wave probe with nominal frequency of 1.8 MHz through transversal-isotropic elastic layer of constant thickness at different values of the anisotropy parameter, it is shown that with an increase in the anisotropy parameter there is a shift of the signal maximum in the direction of increasing the distance to the reflector, which is associated with an increase in the phase velocity of the quasi-longitudinal wave in the layer, and an increase in the maximum value due to a change in the double transformation coefficient when the longitudinal wave passes from the prism of the probe to the layer and back. For a probe with a frequency of 2.5 MHz, an increase in the anisotropy parameter leads to a decrease in the value of the echo maximum, since the increased increase in the attenuation of the quasi-longitudinal wave in the layer is not compensated by a change in the double transformation coefficient. For different nominal angles of probe (45…60°), a noticeable change in the shapes of frequency spectra and echo pulses at different values of the anisotropy parameter has not been established. The effect of increasing the distance from the control surface to the axis of the cylindrical hole at a constant layer thickness on the change of the amplitude of the echo signal in the calculated range of values of the anisotropy parameter is shown.","PeriodicalId":432853,"journal":{"name":"Kontrol'. Diagnostika","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139352370","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}
Pub Date : 2023-08-01DOI: 10.14489/td.2023.08.pp.050-056
E. V. Titov, A. Soshnikov, A. V. Pinchuk
Computer simulation of the electromagnetic environment makes it possible to determine the sources of the electromagnetic field and radiation at the object under study, accelerates the process of determining the degree of danger of the electromagnetic environment, forms pictures of the distribution in space of the components of the electromagnetic field and creates maps of the permissible time of human stay. Free software (openEMS, MEEP) significantly simplifies the solution of these tasks. The article considers the issues of assessing the adequacy of computer models of the distribution of electromagnetic field components formed using these modeling packages. The results of experimental measurements and computer simulation of the electric field at frequencies of 50 Hz, 30 kHz, 3 MHz, 30 MHz and 50 MHz are presented. The results of measurements and computer simulation of the electromagnetic field at frequencies of 800 MHz, 25 Khz and 40 GHz are presented. The adequacy of modeling the components of the electromagnetic field using openEMS and MEEP, sufficient for practical application, has been confirmed.
{"title":"ASSESSMENT OF THE ADEQUACY OF COMPUTER SIMULATION OF THE ELECTROMAGNETIC ENVIRONMENT USING FREE SOFTWARE","authors":"E. V. Titov, A. Soshnikov, A. V. Pinchuk","doi":"10.14489/td.2023.08.pp.050-056","DOIUrl":"https://doi.org/10.14489/td.2023.08.pp.050-056","url":null,"abstract":"Computer simulation of the electromagnetic environment makes it possible to determine the sources of the electromagnetic field and radiation at the object under study, accelerates the process of determining the degree of danger of the electromagnetic environment, forms pictures of the distribution in space of the components of the electromagnetic field and creates maps of the permissible time of human stay. Free software (openEMS, MEEP) significantly simplifies the solution of these tasks. The article considers the issues of assessing the adequacy of computer models of the distribution of electromagnetic field components formed using these modeling packages. The results of experimental measurements and computer simulation of the electric field at frequencies of 50 Hz, 30 kHz, 3 MHz, 30 MHz and 50 MHz are presented. The results of measurements and computer simulation of the electromagnetic field at frequencies of 800 MHz, 25 Khz and 40 GHz are presented. The adequacy of modeling the components of the electromagnetic field using openEMS and MEEP, sufficient for practical application, has been confirmed.","PeriodicalId":432853,"journal":{"name":"Kontrol'. Diagnostika","volume":"87 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139352153","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}
Pub Date : 2023-08-01DOI: 10.14489/td.2023.08.pp.058-062
V. I. Matveev
The content of the International Metrology Forum dedicated to the next World Metrology Day and the accompanying exhibition is briefly described. The main topics of the business program were the improvement of the level of metrological measurements, the development of standardization systems and product certification. The exhibition demonstrated modern metrological measuring instruments and product certification produced by leading enterprises of the industry.
{"title":"METROLOGY WITHOUT BORDERS 2023","authors":"V. I. Matveev","doi":"10.14489/td.2023.08.pp.058-062","DOIUrl":"https://doi.org/10.14489/td.2023.08.pp.058-062","url":null,"abstract":"The content of the International Metrology Forum dedicated to the next World Metrology Day and the accompanying exhibition is briefly described. The main topics of the business program were the improvement of the level of metrological measurements, the development of standardization systems and product certification. The exhibition demonstrated modern metrological measuring instruments and product certification produced by leading enterprises of the industry.","PeriodicalId":432853,"journal":{"name":"Kontrol'. Diagnostika","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139352196","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}
Pub Date : 2023-08-01DOI: 10.14489/td.2023.08.pp.018-025
A. Bespalko, A. P. Surzhikov, D. D. Dann
The paper presents the results of changing the parameters of electromagnetic responses in dielectric materials with defects under external pulsed acoustic excitation. It is shown that in electric and magnetic fields the amplitude of electromagnetic responses increases in accordance with the features of the applied fields. Depending on the properties and sizes of defects in dielectric materials, the amplitude-frequency spectra of electromagnetic responses change.
{"title":"COMPARISON OF ACOUSTIC-ELECTRICAL NON-DESTRUCTIVE TESTING OF SOLID-STATE DIELECTRICS IN ELECTRIC AND MAGNETIC FIELDS","authors":"A. Bespalko, A. P. Surzhikov, D. D. Dann","doi":"10.14489/td.2023.08.pp.018-025","DOIUrl":"https://doi.org/10.14489/td.2023.08.pp.018-025","url":null,"abstract":"The paper presents the results of changing the parameters of electromagnetic responses in dielectric materials with defects under external pulsed acoustic excitation. It is shown that in electric and magnetic fields the amplitude of electromagnetic responses increases in accordance with the features of the applied fields. Depending on the properties and sizes of defects in dielectric materials, the amplitude-frequency spectra of electromagnetic responses change.","PeriodicalId":432853,"journal":{"name":"Kontrol'. Diagnostika","volume":"72 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139352301","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}
Pub Date : 2023-08-01DOI: 10.14489/td.2023.08.pp.026-031
M. A. Zhazhin, A. E. Shubochkin, R. A. Shestakov
The main goal of the study is to improvement a method for determining the location of an in-line diagnostic tool. The method under consideration is based on the use in the calculation of the pressure drop resulting from the location of the flaw detector in the pipe. For theoretical testing of the developed methodology, a calculation model of the pipeline was built using the example of a gas pipeline. The calculation method takes into account both the parameters of the pipeline and the pumped medium, as well as the gravity of the projectile itself, which minimizes errors in determining the coordinates of the defect and makes it possible to eliminate the defect faster and more efficiently. The sections of the article discuss, among other things, general information about the technological reliability of main pipelines, theses proving the relevance of the task, a description of the proposed method for solving it, as well as excerpts from the calculation algorithm, on the basis of which the pipeline model was developed, which allows determining the location of the pig when carrying out in-line diagnostics in this pipeline.
{"title":"IMPROVEMENT OF THE METHOD OF DETERMINING THE LOCATION OF THE FLAW DETECTOR DURING IN-LINE DIAGNOSTICS OF MAIN GAS PIPELINES","authors":"M. A. Zhazhin, A. E. Shubochkin, R. A. Shestakov","doi":"10.14489/td.2023.08.pp.026-031","DOIUrl":"https://doi.org/10.14489/td.2023.08.pp.026-031","url":null,"abstract":"The main goal of the study is to improvement a method for determining the location of an in-line diagnostic tool. The method under consideration is based on the use in the calculation of the pressure drop resulting from the location of the flaw detector in the pipe. For theoretical testing of the developed methodology, a calculation model of the pipeline was built using the example of a gas pipeline. The calculation method takes into account both the parameters of the pipeline and the pumped medium, as well as the gravity of the projectile itself, which minimizes errors in determining the coordinates of the defect and makes it possible to eliminate the defect faster and more efficiently. The sections of the article discuss, among other things, general information about the technological reliability of main pipelines, theses proving the relevance of the task, a description of the proposed method for solving it, as well as excerpts from the calculation algorithm, on the basis of which the pipeline model was developed, which allows determining the location of the pig when carrying out in-line diagnostics in this pipeline.","PeriodicalId":432853,"journal":{"name":"Kontrol'. Diagnostika","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139353035","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}
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