Download or read book Ultrasonic Transducers for Nondestructive Testing written by Maurice G. Silk and published by CRC Press. This book was released on 1984-01-01 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transducers for Ultrasonic Flaw Detection written by V. N. Bindal and published by Alpha Science Int'l Ltd.. This book was released on 1999 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a large variety of transducers are required for the current needs of NDT applications, this book gives a consolidated account regarding the basic principles, applications, advantages and limitations, design considerations, materials and methods used for their evaluation and calibration etc. by the technocrats and professionals involved in ultrasonic NDT.

Download or read book Ultrasonic and Advanced Methods for Nondestructive Testing and Material Characterization written by Chi-hau Chen and published by World Scientific. This book was released on 2007 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrasonic methods have been very popular in nondestructive testing and characterization of materials. This book deals with both industrial ultrasound and medical ultrasound. The advantages of ultrasound include flexibility, low cost, in-line operation, and providing data in both signal and image formats for further analysis. The book devotes 11 chapters to ultrasonic methods. However, ultrasonic methods can be much less effective with some applications. So the book also has 14 chapters catering to other or advanced methods for nondestructive testing or material characterization. Topics like structural health monitoring, Terahertz methods, X-ray and thermography methods are presented. Besides different sensors for nondestructive testing, the book places much emphasis on signal/image processing and pattern recognition of the signals acquired.

Download or read book Ultrasonic Nondestructive Testing of Materials written by Karl-Jörg Langenberg and published by CRC Press. This book was released on 2012-02-22 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book features a comprehensive discussion of the mathematical foundations of ultrasonic nondestructive testing of materials. The authors include a brief description of the theory of acoustic and electromagnetic fields to underline the similarities and differences with respect to elastodynamics. They also cover vector, elastic plane, and Rayleigh surface waves as well as ultrasonic beams, inverse scattering, and ultrasonic nondestructive imaging. A coordinate-free notation system is used that is easier to understand and navigate than standard index notation.

Download or read book Ultrasonic Transducer Materials written by O. E. Mattiat and published by Springer Science & Business Media. This book was released on 2013-03-13 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years remarkable progress has been made in the development of materials for ultrasonic transducers. There is a continuing trend towards increasingly higher frequency ranges for the application of ultrasonic trans ducers in modern technology. The progress in this area has been especially rapid and articles and papers on the subject are scattered over numerous technical and scientific journals in this country and abroad. Although good books have appeared on ultrasonics in general and ultrasonic transducers in particular in which, for obvious reasons, materials play an important part, no comprehensive treatise is available that represents the state-of-the-art on modern ultrasonic transducer materials. This book intends to fill a need for a thorough review of the subject. Not all materials are covered of which, theoretically, ultrasonic trans ducers could be made but those that are or may be of technical impor tance and which have inherent electro acoustic transducer properties, i.e., materials that are either magnetostrictive, electrostrictive, or piezoelectric. The book has been devided into three parts which somewhat reflect the historic development of ultrasonic transducer materials for important tech nical application. Chapter 1 deals with magnetostrictive materials, magnetostrictive met als and their alloys, and magnetostrictive ferrites (polycrystalline ceramics). The metals are useful especially in cases where ruggednes of the transducers are of overriding importance and in the lower ultrasonic frequency range.

Download or read book High Temperature Integrated and Flexible Ultrasonic Transducers for Nondestructive Testing written by Makiko Kobayashi and published by . This book was released on 2008 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ultrasonic Nondestructive Evaluation Systems written by Lester W. Schmerr Jr and published by Springer Science & Business Media. This book was released on 2007-04-22 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using a systems level approach, this book employs aspects of linear systems theory and wave propagation and scattering theory to develop a comprehensive model of an entire ultrasonic measurement system. This integrated approach leads to a new model-based engineering technology for designing, using and optimizing ultrasonic nondestructive evaluation inspections. In addition, the book incorporates MATLAB examples and exercises.

Download or read book Ultrasonic Methods of Non destructive Testing written by J. Blitz and published by Springer Science & Business Media. This book was released on 1995-11-30 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrasonic Methods of Non-Destructive Testing covers the basic principles and practices of ultrasonic testing, starting with the basic theory of vibration and propagation, design and properties and probes, and then proceeding to the principles and practice of the various ultrasonic techniques for different types of components and structures, both metallic and non-metallic. The design and operation of various types of equipment are covered and references to appropriate national and international standards are provided. Numerous applications are discussed comprehensively and special attention is paid to latest developments. A large number of references is provided so as to enable the reader to obtain further information.

Download or read book Fundamentals of Ultrasonic Nondestructive Evaluation written by Lester W. Schmerr Jr. and published by Springer. This book was released on 2016-04-30 with total page 765 pages. Available in PDF, EPUB and Kindle. Book excerpt: This extensively revised and updated second edition of a widely read classic presents the use of ultrasound in nondestructive evaluation (NDE) inspections. Retaining the first edition's use of wave propagation /scattering theory and linear system theory, this volume also adds significant new material including: the introduction of MATLAB® functions and scripts that evaluate key results involving beam propagation and scattering, flaw sizing, and the modeling of ultrasonic systems. elements of Gaussian beam theory and a multi-Gaussian ultrasonic beam model for bulk wave transducers. a new chapter on the connection between ultrasonic modeling and probability of detection (POD) and reliability models. new and improved derivations of ultrasonic measurement models. updated coverage of ultrasonic simulators that have been developed around the world. Students, engineers, and researchers working in the ultrasonic NDE field will find a wealth of information on the modeling of ultrasonic inspections and the fundamental ultrasonic experiments that support those models in this new edition.

Download or read book Development of Ultrasonic Transducers for Non destructive Testing of High Voltage Cables Up to 33 KV written by Karsten Kahle and published by . This book was released on 1995 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ultrasound in Food Processing written by Mar Villamiel and published by John Wiley & Sons. This book was released on 2017-04-25 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part I: Fundamentals of ultrasound This part will cover the main basic principles of ultrasound generation and propagation and those phenomena related to low and high intensity ultrasound applications. The mechanisms involved in food analysis and process monitoring and in food process intensification will be shown. Part II: Low intensity ultrasound applications Low intensity ultrasound applications have been used for non-destructive food analysis as well as for process monitoring. Ultrasonic techniques, based on velocity, attenuation or frequency spectrum analysis, may be considered as rapid, simple, portable and suitable for on-line measurements. Although industrial applications of low-intensity ultrasound, such as meat carcass evaluation, have been used in the food industry for decades, this section will cover the most novel applications, which could be considered as highly relevant for future application in the food industry. Chapters addressing this issue will be divided into three subsections: (1) food control, (2) process monitoring, (3) new trends. Part III: High intensity ultrasound applications High intensity ultrasound application constitutes a way to intensify many food processes. However, the efficient generation and application of ultrasound is essential to achieving a successful effect. This part of the book will begin with a chapter dealing with the importance of the design of efficient ultrasonic application systems. The medium is essential to achieve efficient transmission, and for that reason the particular challenges of applying ultrasound in different media will be addressed. The next part of this section constitutes an up-to-date vision of the use of high intensity ultrasound in food processes. The chapters will be divided into four sections, according to the medium in which the ultrasound vibration is transmitted from the transducers to the product being treated. Thus, solid, liquid, supercritical and gas media have been used for ultrasound propagation. Previous books addressing ultrasonic applications in food processing have been based on the process itself, so chapters have been divided in mass and heat transport, microbial inactivation, etc. This new book will propose a revolutionary overview of ultrasonic applications based on (in the authors’ opinion) the most relevant factor affecting the efficiency of ultrasound applications: the medium in which ultrasound is propagated. Depending on the medium, ultrasonic phenomena can be completely different, but it also affects the complexity of the ultrasonic generation, propagation and application. In addition, the effect of high intensity ultrasound on major components of food, such as proteins, carbohydrates and lipids will be also covered, since this type of information has not been deeply studied in previous books. Other aspects related to the challenges of food industry to incorporate ultrasound devices will be also considered. This point is also very important since, in the last few years, researchers have made huge efforts to integrate fully automated and efficient ultrasound systems to the food production lines but, in some cases, it was not satisfactory. In this sense, it is necessary to identify and review the main related problems to efficiently produce and transmit ultrasound, scale-up, reduce cost, save energy and guarantee the production of safe, healthy and high added value foods.

Download or read book Ultrasonic Flaw Detection written by and published by . This book was released on 1958 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sensors for Ultrasonic NDT in Harsh Environments written by Anthony N Sinclair and published by MDPI. This book was released on 2020-05-13 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this Special Issue of Sensors, seven peer-reviewed manuscripts appear on the topic of ultrasonic transducer design and operation in harsh environments: elevated temperature, high gamma and neutron radiation fields, or the presence of aggressive chemicals. Motivations for these research and development projects are strongly focused on nuclear power plant inspections (particularly liquid-sodium cooled reactors), and nondestructive testing of high-temperature piping installations. It is anticipated that extensive use of permanently mounted robust transducers for in-service monitoring of petrochemical plants and power generations stations; quality control in manufacturing plants; and primary and secondary process monitoring in the fabrication of engineering materials will soon be made.

Download or read book New Developments in Ultrasonic Transducers and Their Application to Nondestructive Testing written by J. C. BACON and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Capacitive Micromachined Ultrasonic Transducers for Non destructive Testing Applications written by Lawrence Lai Pong Wong and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrasound is a popular technique for industrial non-destructive testing (NDT) applications. By sending ultrasonic waves into an object and observing the amplitude and the delay of the reflected or transmitted waves, one can characterize the material, measure the thickness of the object, and detect discontinuities (flaws) as well as the size, location, and orientation of the defects in the object. Traditionally, ultrasonic transducers for NDT are made with piezoelectric crystals. Meanwhile, another class of ultrasonic transducers known as capacitive micromachined ultrasonic transducers (CMUTs) have become popular in medical ultrasound research because of their large bandwidths and other attributes that allow them to be integrated into the tip of a catheter. However, CMUTs have not been widely adopted in ultrasonic NDT applications. In this thesis, three important CMUTs characteristics that could potentially make them attractive for NDT applications are introduced and demonstrated. First, CMUTs can be beneficial to NDT because the fabrication techniques of CMUTs can easily be used to implement high-frequency, high-density phased arrays, which are essential for high resolution scanning. Surface scanning using a 2-D row-column addressed CMUT array was demonstrated. Secondly, CMUTs can be integrated with supporting microelectronic circuits, thus one can implement a highly integrated transducer system, which can be useful in structural health monitoring NDT applications. Front-end microelectronic circuits that include a transmit pulser and a receive amplifier were designed, tested, and characterized. Thirdly, CMUTs are suitable for air-coupled applications because of their low acoustic impedance at resonance. Air-coupled CMUTs fabricated in a standard RF-MEMS process were characterized and tested. This thesis concludes with an analysis of the potential usefulness of CMUTs for ultrasonic NDT. While many ultrasonic NDT applications are better off being performed using conventional piezoelectric transducers, CMUTs can and should be used in certain NDT applications that can take advantage of the beneficial characteristics of this exciting transducer technology.

Download or read book Investigation of a Novel Transducer Design for Ultrasonic Non destructive Testing of Additively Manufactured Metal Components written by Michael Ryan Costa and published by . This book was released on 2021 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Additively manufactured (AM) components have seen increased use in industry in recent years. AM is of particular interest in aerospace, where high specific stiffness and strength of structural components is desired. AM helps to achieve this goal by adding the capability of manufacturing highly optimized geometry that is not possible or economic with traditional manufacturing methods. With the new processes associated with AM come new challenges for performing non-destructive testing (NDT), as well as qualifying parts for flight use. There are current gaps in NDT processes and technologies with how they can be applied to AM. Current ultrasound NDT systems are not optimized for AM parts. Ultrasonic transducers are generally too large, or do not have the reach to access small features on parts with complex geometry. This research investigates the use of ultrasonic NDT on AM parts using a novel transducer design with a probe like implement designed to gain access to small features that commercial transducers are currently incapable of accessing. A Langevin type ultrasonic transducer is designed and manufactured. Finite element analysis (FEA) is conducted on complex parts in order to determine the feasibility of inspecting components of high complexity by using guided wave ultrasonic NDT techniques. FEA studies show feasibility regarding using guided waves in the 650 kHz range to detect void type defects in a complex part. Multiphysics simulations are employed to provide insight into transducer behavior. A multiphysics study is used to produce a frequency response plot, which shows general correlation to real-world data from the experimental transducer. The transducer's frequency response in the 50 kHz to 650 kHz domain is characterized, and NDT experiments are conducted using plates and an AM component. Testing of an AM part showed better performance for detecting potential flaws under experimental settings when using prescribed damage indices. Results are compared to the performance of a commercial transducer under the same experimental conditions. Damage indices are developed in order to create a aw detection threshold. The experimental transducer is successfully used in detecting a stiffener within a plate, with calculated damage indices being comparable to a commercial transducer.

Download or read book Ultrasonic Transducer Arrays for Nondestructive Testing written by Richard Lawrence Baer and published by . This book was released on 1983 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: