Восстановление изображения отражателей на границе основного металла и сварного соединения с использованием ультразвуковых антенных решеток

2021 ◽  
pp. 3-17
Author(s):  
А.Е. Базулин ◽  
Е.Г. Базулин ◽  
А.Х. Вопилкин ◽  
Д.С. Тихонов
Keyword(s):  
Antenna Array ◽  
Welded Joints ◽  
Phased Array ◽  
Ultrasonic Inspection ◽  
Control Object ◽  
Fusion Boundary ◽  
High Quality ◽  
Array Technology

The article suggests an effective method of replacing zonal focusing with an antenna array, traditionally used for automated ultrasonic inspection of welded joints with a narrow cutting to detect defects at the fusion boundary. This method, based on the use of multi-circuit digital focusing antenna technology (DFA), allows you to obtain and analyze high-quality images of reflectors. The proposed method, in comparison with zonal focusing made using phased array technology, is less sensitive to the accuracy of positioning the antenna array relative to the seam axis and to changes in the thickness of the control object, allows you to estimate the height of defects not by the amplitude attribute, but by the size of the glare reflectors.

Application of Visual Beam Ultrasonic Phased Array in Inspection of Weld in Tubular Node

2015 ◽  
Author(s):  
Shaojun Wang ◽  
Xiaoying Tang ◽  
Houde Yu ◽  
Yaozhou Qian ◽  
Jun Cheng ◽  
...  
Keyword(s):  
Welded Joints ◽  
Phased Array ◽  
Sound Beam ◽  
Ultrasonic Sound ◽  
Array Technology ◽  
Coverage Model ◽  
Ultrasonic Phased Array ◽  
Arbitrary Section ◽  
Tubular Joint ◽  
Low Efficiency

Responding to complexity and particularity welding on the geometry of TKY tubular node, this paper constructs mathematical model of tubular joint weld of arbitrary section by simplifying the geometry structure, and draws welded joints and ultrasonic sound beam lines based on the actual specifications in order to solve the problems of low efficiency, positioning difficulty, missing inspection and etc. The computeraided simulation technology can realize the visualization in the beam coverage model of welded joints, which can commendably guide the design of ultrasonic phased array inspection and overcome the blindness of the instrument detection parameters, thus improving the effectiveness and pertinence of the actual detection. Study shows that it is beneficial to enhance the effectiveness of the detection tubular joint weld by employment of Visual beam and ultrasonic phased array technology.

Radiation Beam Modeling and Intelligent Signal Interpretation for Phased Array Ultrasonic Inspection

2001 ◽  
Author(s):  
Sung-Jin Song ◽  
Hyeon Jae Shin ◽  
Jeong-Rock Kwon
Keyword(s):  
Phased Array ◽  
Ultrasonic Inspection ◽  
Wave Model ◽  
Beam Model ◽  
Computationally Efficient ◽  
High Quality ◽  
Radiation Beam ◽  
Ultrasonic Phased Array ◽  
Key Issues ◽  
Location Type

Abstract Flaw characterization with ultrasonic phased array technique involves to key issues, such as obtaining the high quality flaw images and determining the quantitative flaw information (such as location, type and size). This paper deals with these two key issues. For obtaining the high quality images, it is necessary to optimize the parameters of array transducers. To address such a need, a very computationally efficient radiation beam model is developed based on the boundary diffraction wave model, and the 3-D radiation beam fields from array transducers were simulated to investigate their characteristics in detail. From the sectorial images provided by the ultrasonic phased array technique, flaw size can be determined very successfully, if the type of the scatters is identified in advance. For the determination of the type of scatters, an intelligent signal interpretation scheme based on ultrasonic pattern recognition approach is studied, and the variation of features according to the steering angle is found to be a very sensitive feature for this purpose. The performance of the proposed approach is demonstrated with the initial experiments.

Review of Ultrasonic Phased Arrays for Pressure Vessel and Pipeline Weld Inspections

2005 ◽  
Vol 127 (3) ◽  
pp. 351-356 ◽  
Author(s):  
Michael Moles ◽  
Noël Dubé ◽  
Simon Labbé ◽  
Ed Ginzel
Keyword(s):  
Pressure Vessel ◽  
Phased Array ◽  
Beam Steering ◽  
Ultrasonic Inspection ◽  
Time Data ◽  
Construction Costs ◽  
Array Technology ◽  
Weld Profile ◽  
Asme Code ◽  
Pulse Echo

Major improvements in weld inspection are obtained using Phased Array technology with capability for beam steering, electronic scanning, focusing, and sweeping the ultrasonic beams. Electronic scanning is much faster than raster scanning, and can optimize angles and focusing to maximize defect detection. Pressure vessel (PV) inspections typically use “top, side, end” or “top, side, TOFD” views, though other imaging is possible. Special inspections can be performed, e.g., for specific defects, or increased coverage. Defects can be sized by pulse-echo as per code, by time-of-flight Diffraction or by back diffraction. New PV inspection codes, particularly ASME Code Case 2235, permit the use of advanced ultrasonic inspection techniques. Pipeline girth weld inspections use a unique inspection approach called “zone discrimination,” and have their own series of codes. While similar equipment is used in pipeline as in PV inspections, the pipeline philosophy is to tailor the inspection to the weld profile and predicted lack of fusion defects. Pipeline displays are specifically designed for near real-time data analysis. Both ASME CC 2235 and the pipeline codes permit the use of Fitness-For-Purpose, which reduces construction costs. Overall, phased array systems meet or exceed all PV and pipeline codes.

Application of Portable Ultrasonic Phased Array Instrument for Rail Welds Ultrasonic Inspection

2013 ◽  
Vol 717 ◽  
pp. 384-389 ◽  
Author(s):  
Jin Jie Lao ◽  
Chao Lu
Keyword(s):  
Phased Array ◽  
Ultrasonic Inspection ◽  
Inspection Cost ◽  
Array Technology ◽  
Ultrasonic Phased Array ◽  
Conventional Ultrasound ◽  
Weld Inspection

In order to promote the phased array technology for the application of weld inspection, the advantage of phased array technology was introduced and the application of rails welding inspection with phased array technology was also introduced. Through detecting nature and machining flaws of aluminum-themic welding of rails, contrast to results of conventional ultrasound test, validate the effectiveness of ultrasonic phased array method, concluding characteristics of ultrasonic phased array method for the aluminum-themic welding of rails. From the result of application, the efficiency of weld inspection could be greatly improved and the inspection cost could be greatly reduced by phased array technology.

Optimized Inspection of Thin-Walled Pipe Welds Using Advanced Ultrasonic Techniques

2005 ◽  
Vol 127 (3) ◽  
pp. 237-243 ◽  
Author(s):  
M. G. Lozev ◽  
R. L. Spencer ◽  
D. Hodgkinson
Keyword(s):  
Phased Array ◽  
Ultrasonic Inspection ◽  
Novel Approach ◽  
Array Technology ◽  
Ultrasonic Phased Array ◽  
Thin Walled Pipe ◽  
Ultrasonic Techniques ◽  
Thin Walled ◽  
Planar Fabrication

In this paper an effective way to optimize the inspection of welds in thin-walled pipe less than 6 mm (0.24 in.) thick using automated ultrasonic testing (AUT) is described. AUT offers a better solution than radiography for detecting and sizing of planar defects. However, cap width, weld shrinkage and defect sizing put constraints on the actual ultrasonic approach for inspection of pipes with wall thickness less than 6 mm (0.24 in.). The applications of high-frequency single/multiprobe techniques and phased-array technology for inspection of thin-walled pipe welds have been investigated in this paper. It has been demonstrated that combining an advanced ultrasonic phased-array technique with a novel approach for modeling and simulation of ultrasonic inspection have potentially significant advantages for enhanced detectability, better sizing and improved flaw characterization of randomly oriented planar fabrication imperfections in thin-walled pipe welds.

A Method of Ultrasonic Phased Array Inspection of Middle-High Pressure Plastic Pipe Reinforced by Cross Helically Wound Steel Wires Electro-Fusion Joint

2015 ◽  
Author(s):  
Xiaoming Miao ◽  
Jianfeng Shi ◽  
Jinyang Zheng
Keyword(s):  
High Pressure ◽  
Welded Joints ◽  
Phased Array ◽  
Steel Plate ◽  
Ultrasonic Inspection ◽  
Steel Wires ◽  
Plastic Pipe ◽  
Ultrasonic Phased Array ◽  
Fusion Weld ◽  
Non Destructive

With strong bearing capacity, good corrosion resistance, excellent wear resistance, light weight and easy transportation and installation, Plastic pipe reinforced by cross helically wound steel wires (PSP) is widely used in oil industry, coal chemical industry, slurry transportation engineering, and sea (river) bottom water projects. Due to the PSP at middle-high pressure, an effective and reliable method of connection between pipes is particularly important. Heat-fusion weld and electro-fusion weld are usually used in middle-high PSP connections, or adding steel plate reinforcement at present. The pipe welded-joint failure is the main failure mode at service stage, causing the damage of pipelines and fluid leakage. Ultrasonic phased array inspection, which is one of the non-destructive inspection methods, is mainly used in pipe welded-joints inspection. A higher attenuation coefficient of polyolefin materials and the interference of steel mesh skeleton among PSP can cause great impact to the ultrasonic inspection; It’s worse if a steel plate is added. In order to put forward a kind of method can better detect the connection joint, this paper examines a new method of ultrasonic phased array inspection in PSP welded-joints based on customized probe, focus law and scanning mode which overcomes the difficulties found in other usual non-destructive inspection measures.

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