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Modeling Of Eddy Current Probe Response For Steam Generator Tubes
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Book Synopsis Modeling of Eddy Current Probe Response for Steam Generator Tubes by :
Download or read book Modeling of Eddy Current Probe Response for Steam Generator Tubes written by and published by . This book was released on 1996 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sample calculations were performed with a three-dimensional (3-D) finite-element model analysis that describe the response of an eddy current (EC) probe to steam generator (SG) tubing artifacts. Such calculations could be very helpful in understanding and interpreting of EC probe response to complex tube/defect geometries associated with the inservice inspection (ISI) of steam generator (SG) tubing. The governing field equations are in terms of coupled magnetic vector and electric scalar potentials in conducting media and of total or reduced scalar potentials in nonconducting regions. To establish the validity of the model, comparisons of the theoretical and experimental responses of an absolute bobbin probe are given for two types of calibration standard defects. Preliminary results are also presented from a recent theoretical study of the effect of ligament size in axial cracks on EC indications with conventional ISI bobbin probes.
Book Synopsis Modeling of Eddy Current NDE Probe for Steam Generator Tubes by :
Download or read book Modeling of Eddy Current NDE Probe for Steam Generator Tubes written by and published by . This book was released on 2003 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: Calculations were performed with a three-dimensional (3-D) finite-element model to describe the response of an eddy current (EC) probe to defects in steam generator (SG) tubing of a nuclear reactor. Such calculations could be very helpful in understanding and interpreting the EC probe response to complex tube/defect geometries associated with longitudinal inner/outer notches, roll transitions, sludge, and through-wall holes in SG tubes. The governing field equations are derived in terms of coupled magnetic vector and electric scalar potentials in the conducting media and total or reduced scalar potentials in the non-conducting regions. To assess the validity of the model, we compared the signal responses for two numerical approaches, stored-energy-and-power-loss approach and magnetic-flux approach for various tube/defect geometries. Simulation results are also presented on the tube/defect geometries for the pancake coil response and the transmitter/receiver (T/R) probe response. The results indicate that the eddy-current NDE modeling is capable of predicting EC probe response to flaws in steam generator tubes.
Book Synopsis Finite-element Modeling of Eddy-current Probe for NDE of Steam Generator Tubes by :
Download or read book Finite-element Modeling of Eddy-current Probe for NDE of Steam Generator Tubes written by and published by . This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling the Differential Eddy Current Probe for Steam Generator Tubing Inspections Using Z Parameters by : Quang Huy Nguyen
Download or read book Modeling the Differential Eddy Current Probe for Steam Generator Tubing Inspections Using Z Parameters written by Quang Huy Nguyen and published by . This book was released on 1993 with total page 942 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Eddy-current Inspection for Steam Generator Tubing Program Quarterly Progress Report for Period Ending ... by : Oak Ridge National Laboratory. Metals and Ceramics Division
Download or read book Eddy-current Inspection for Steam Generator Tubing Program Quarterly Progress Report for Period Ending ... written by Oak Ridge National Laboratory. Metals and Ceramics Division and published by . This book was released on 1978-03-31 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Eddy-current Inspection for Steam Generator Tubing Program Annual Progress Report for Period Ending ... by :
Download or read book Eddy-current Inspection for Steam Generator Tubing Program Annual Progress Report for Period Ending ... written by and published by . This book was released on 1983-03 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Eddy Current NDE Steam Generator Tubing by :
Download or read book Advanced Eddy Current NDE Steam Generator Tubing written by and published by . This book was released on 1999 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: As part of a multifaceted project on steam generator integrity funded by the U.S. Nuclear Regulatory Commission, Argonne National Laboratory is carrying out research on the reliability of nondestructive evaluation (NDE). A particular area of interest is the impact of advanced eddy current (EC) NDE technology. This paper presents an overview of work that supports this effort in the areas of numerical electromagnetic (EM) modeling, data analysis, signal processing, and visualization of EC inspection results. Finite-element modeling has been utilized to study conventional and emerging EC probe designs. This research is aimed at determining probe responses to flaw morphologies of current interest. Application of signal processing and automated data analysis algorithms has also been addressed. Efforts have focused on assessment of frequency and spatial domain filters and implementation of more effective data analysis and display methods. Data analysis studies have dealt with implementation of linear and nonlinear multivariate models to relate EC inspection parameters to steam generator tubing defect size and structural integrity. Various signal enhancement and visualization schemes are also being evaluated and will serve as integral parts of computer-aided data analysis algorithms. Results from this research will ultimately be substantiated through testing on laboratory-grown and in-service-degraded tubes.
Book Synopsis Evaluation of Sampling Plans for In-service Inspection of Steam Generator Tubes: Modeling of eddy-current reliability data, analytical evaluations, and initial Monte Carlo simulations by : W. M. Bowen
Download or read book Evaluation of Sampling Plans for In-service Inspection of Steam Generator Tubes: Modeling of eddy-current reliability data, analytical evaluations, and initial Monte Carlo simulations written by W. M. Bowen and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computer simulation of eddy current probes for detection of internal magnetite layers in steam generator tubes by : D. Humphrey
Download or read book Computer simulation of eddy current probes for detection of internal magnetite layers in steam generator tubes written by D. Humphrey and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Eddy-current Inspection for Steam-generator Tubing Program Quarterly Progress Report for Period Ending September 30, 1979 by : Cas V. Dodd
Download or read book Eddy-current Inspection for Steam-generator Tubing Program Quarterly Progress Report for Period Ending September 30, 1979 written by Cas V. Dodd and published by . This book was released on 1980 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Improved Eddy-current Inspection for Steam Generator Tubing by :
Download or read book Improved Eddy-current Inspection for Steam Generator Tubing written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Oak Ridge National Laboratory is working on a number of steam generator and eddy-current problems, and one of the most promising developments is the use of reflection type probes. This probe consists of a driver coil encircling and coaxial with two pick-up coils, which are connected in opposition. The reflection probe is mounted perpendicular to the tube axis with one pick-up coil pressed against the surface like a pancake coil. Studies were performed to determine the best probe dimensions to maximize the ratio of defect signals to the undesired od property variations at different frequencies. Comparisons between reflection probes and the traditional circumferential or bobbin probes show that the former are more sensitive to defects and less sensitive to variation of properties outside the tube, such as tube supports, magnetite, and copper. The probe can be used in either multiple frequency or pulsed instruments in a manner similar to the bobbin probes. Since the undesired property variations have a smaller effect on the signal, they are easier to eliminate using multiple frequency or pulsed techniques. This has been demonstrated by test runs on standard steam generator tubes with different types of defects and different property variations. The reflection probe has given measurements of actual IGSCC cracks that compare well to the metallographic results. This type of probe has very good resolution and gives fine and accurate scans of the tubing, but is more expensive, complex, and slower. 10 figs., 2 tabs.
Book Synopsis Eddy-current Inspection for Steam-generator-tubing Program Annual Progress Report for Period Ending December 31, 1982 by : Cas V. Dodd
Download or read book Eddy-current Inspection for Steam-generator-tubing Program Annual Progress Report for Period Ending December 31, 1982 written by Cas V. Dodd and published by . This book was released on 1983 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Eddy-current Inspection for Steam Generator Tubing Program Quarterly Progress Report for Period Ending March 31, 1981 by : Cas V. Dodd
Download or read book Eddy-current Inspection for Steam Generator Tubing Program Quarterly Progress Report for Period Ending March 31, 1981 written by Cas V. Dodd and published by . This book was released on 1980 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of a 3D Electromagnetic Model for Eddy Current Tubing Inspection Application to Steam Generator Tubing by : Valerie Maillot
Download or read book Development of a 3D Electromagnetic Model for Eddy Current Tubing Inspection Application to Steam Generator Tubing written by Valerie Maillot and published by . This book was released on 2003 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Steam Generator Systems by : Valentin Uchanin
Download or read book Steam Generator Systems written by Valentin Uchanin and published by BoD – Books on Demand. This book was released on 2011-03-16 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is intended for practical engineers, researchers, students and other people dealing with the reviewed problems. We hope that the presented book will be beneficial to all readers and initiate further inquiry and development with aspiration for better future. The authors from different countries all over the world (Germany, France, Italy, Japan, Slovenia, Indonesia, Belgium, Romania, Lithuania, Russia, Spain, Sweden, Korea and Ukraine) prepared chapters for this book. Such a broad geography indicates a high significance of considered subjects.
Book Synopsis Computer Programs for the Acquisition and Analysis of Eddy-current Array Probe Data by :
Download or read book Computer Programs for the Acquisition and Analysis of Eddy-current Array Probe Data written by and published by . This book was released on 1996 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: Objective of the Improved Eddy-Curent ISI (in-service inspection) for Steam Generators Tubing program is to upgrade and validate eddy-current inspections, including probes, instrumentation, and data processing techniques for ISI of new, used, and repaired steam generator tubes; to improve defect detection, classification and characterization as affected by diameter and thickness variations, denting, probe wobble, tube sheet, tube supports, copper and sludge deposits, even when defect types and other variables occur in combination; to transfer this advanced technology to NRC's mobile NDE laboratory and staff. This report documents computer programs that were developed for acquisition of eddy-current data from specially designed 16-coil array probes. Complete code as well as instructions for use are provided.
Book Synopsis Validating eddy current array probes for inspecting steam generator tubes by : S. P. Sullivan
Download or read book Validating eddy current array probes for inspecting steam generator tubes written by S. P. Sullivan and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
