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Engineers, scientists, and technologists will find here, for the first time, a clear and comprehensive account of applications of ultrasonics in the field of process control. Using numerous examples of high-volume, low-cost applications, the author illustrates how the use of new transducer materials and designs, combined with microprocessor-based electronics, make technical and financial sense for concepts that only a few years ago might have been of interest only to academicians. Some of the important topics covered include coupling, acoustic isolation, transducer and sensor design, and signal detection in the presence of noise.
This Specification is applicable to the calibration of ultrasonic thickness instruments of which the resolution is 0.1mm and 0.01mm.
The amendments of this third English edition with respect to the second one concern beside some printing errors the replacement of some pictures in part D by more modern ones and updating the list of stand ards to the state of the fourth German edition. J OSEF KRAUTKRÄMER Cologne, January 1983 Preface to the Second Edition This seeond English edition is based on the third German edition. In view of most recent teehnologieal advanees it has beeome neeessary in many instanees to supplement the seeond German edition and to revise some parts completely. In addition to piezo-eleetric methods, others are now also extensively diseussed in Chapter 8. As for the intensity method, ultrasonie holo graphy is treated in the new Seetion 9. 4. In Part B, for reasons of syste maties, the resonanee method has been ineluded under transit-time methods. It appeared neeessary to elaborate in greater detail the defini tion of the properties of pulse-echo testing equipment and their measure ments (10. 4). The more recent findings of pulse speetroscopy (5. 6) and sound-emission analysis (12) are mentioned only in passing because their significanee is still controversial. Apart from numerous additions, partieularly those coneerning automatie testing installations, Part C also eontains a new chapter whieh deals with tests on nu eIe ar reactors (28), as weIl as abrief diseussion of surfaee-hardness tests (32. 4). It beeame impossible to include a critieal analysis of the principal standards in Chapter 33.
Ultrasonic Instruments and Devices examines how years of ultrasound research has led to many practical inventions that are now products of use to ordinary people. Examples of personalized applications include the ultrasonograms of an unborn child, the testing of the parts of an automobile for durability, the electronics which make a cell phone work, and the meter in the gas line leading to a house. Larger concerns, such as safety of aircraft, are also discussed. A chapter is devoted to each major engineering area, and each chapter is written by one or more world-class experts in the particular area covered by the chapter. The characteristic uniting the products presented in this book is the extra effort that has been needed above and beyond research to transform the research results into practical items. One chapter of the book is devoted to essays bringing inventions out of the laboratory and onto the showroom floor. The book holds useful perspectives for entrepreneurs, researchers, managers, and consumers, and may turn out to be especially useful to professors and teachers trying to motivate students. There is some technical information in each chapter, varying from chapter to chapter, as well as a historical background. Key Features * Gives examples of commercial ultrasonic instruments, devices, and systems * Shows benefits for individuals and industry * Provides information on a broad range of ultrasound applications * Presents chapters authored by world's foremost experts in ultrasonic instrumentation, techniques, and technology * Offers historical and theoretical perspectives * Presents unique technology transfer essays
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.