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Обработка TOFD-эхосигналов с целью достижения сверхразрешения
Дефектоскопия, 2021The paper proposes to use the method of maximum entropy (ME) and the method for constructing an AR model of the TOFD echo spectrum together with the method of splitting spectra to increase the resolution and, consequently, its information content. Model experiments have shown the effectiveness of the proposed approach.
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REFLECTOR TYPE RECOGNITION USING NEURAL NETWORK BASED ON TOFD ECHOES
Дефектоскопия / Russian Journal of Nondestructive TestingIn this paper we propose to automate the classification of reflector types by TOFD-echoes using ResNet-18 convolutional neural network. The main focus is on modeling and classification of reflectors such as cracks, pores, non-welds and void areas ...
E. Bazulin
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2023 IEEE 3rd International Conference on Electronic Communications, Internet of Things and Big Data (ICEIB), 2023
We innovatively applied neural network technology to the field of non-destructive testing of steel pipelines. According to the survey, there has been a serious gap in the development of intelligence and automation in the field of non-destructive testing ...
Wenmeng Wang, Congyao Wu
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We innovatively applied neural network technology to the field of non-destructive testing of steel pipelines. According to the survey, there has been a serious gap in the development of intelligence and automation in the field of non-destructive testing ...
Wenmeng Wang, Congyao Wu
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Design of TOFD receiving filter on DSP builder
2014 IEEE Far East Forum on Nondestructive Evaluation/Testing, 2014TOFD (Time of Flight Diffraction), one of the most advanced technologies in the field of NDT (Nondestructive Testing), is widely used in science and industry to evaluate the properties of material, component or system without causing damage. Experiments on TOFD show that signal is greatly disturbed by the noise received by the receiving probe. Based on
null Jin Wang +2 more
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Journal of Physics: Conference Series
As existing nuclear power plants in China gradually transition from the RSEM standards to the ASME standards, additional in-service inspection items have been introduced, including nickel-based alloy tubing and welds in the reactor coolant system.
Jin-feng Wu +4 more
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As existing nuclear power plants in China gradually transition from the RSEM standards to the ASME standards, additional in-service inspection items have been introduced, including nickel-based alloy tubing and welds in the reactor coolant system.
Jin-feng Wu +4 more
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Zautomatyzowane badania systemami PA+TOFD - wdrażanie i zastosowania
Badania Nieniszczące i Diagnostyka, 2022Celem referatu jest prezentacja prac wdrożeniowych automatycznych systemów ultradźwiękowych PA+TOFD, dedykowanych do badania doczołowych złączy spawanych o zakresie grubości od 6 do 40 mm na obiektach ze stali węglowych - płaskich oraz na rurociągach w zakresie średnic DN od 500 do 1400 mm. Implementacja kombinowanych technik cyfrowych PA (Phased-Array
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Three-dimensional reconstruction of transverse hole defect in plate based on TOFD inspection
Nondestructive Testing and EvaluationIn this paper, aluminium plate specimens with circular transverse hole defect was prepared, and the specimen was subjected to ultrasonic non-destructive testing using the TOFD (Time-of-Flight Diffraction) inspection method. Simultaneously, addressing the
Gangfeng Zheng +5 more
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Comparative analysis of TOFD detection technology and phased array detection technology
International Conference on Testing Technology and Automation Engineering, 2022In order to ensure the welding quality of the butt weld of the supercritical unit pipeline, ultrasonic testing is often used as a nondestructive testing method for the quality evaluation of the butt weld.In this paper, phased array testing technology ...
Anqi Tu, Lei Lyu
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Experience in application of TOFD ultrasonic technology in tank diagnostics
SCIENCE & TECHNOLOGIES OIL AND OIL PRODUCTS PIPELINE TRANSPORTATIONОписано влияние параметров сварных швов на стенке и днище стальных резервуаров на результаты выявления дефектов при ультразвуковой дефектоскопии дифракционно-временным методом (TOFD).
Леонид Юрьевич Могильнерa +3 more
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Detection and Evaluation of Discontinuities Using AI in TOFD Method
The Proceedings of the Materials and Mechanics ConferenceYuma SATO, Yoshihiro MIZUTANI
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