00871nam0-2200301---450-99000570262040332120140123110255.0000570262FED01000570262(Aleph)000570262FED0100057026219990604d1953----km-y0itay50------bagerDEa-------001yyGeschischte der Vereinigten Staaten von AmerikaHellmuth Gnnter DahmsMnnchenOldenbourg1953565 p.ill.25 cmStati Uniti d'AmericaStoria97322Dahms,Hellmuth Günther401701ITUNINARICAUNIMARCBK990005702620403321973 DAH 1BIBL. 26858FLFBCFLFBCGeschischte der Vereinigten Staaten von Amerika602675UNINA04598nam 22006015 450 991014879400332120200705031736.010.1007/978-4-431-56036-4(CKB)3710000000918193(DE-He213)978-4-431-56036-4(MiAaPQ)EBC4728188(PPN)196321433(EXLCZ)99371000000091819320161025d2017 u| 0engurnn|008mamaatxtrdacontentcrdamediacrrdacarrierElectromagnetic Acoustic Transducers Noncontacting Ultrasonic Measurements using EMATs /by Masahiko Hirao, Hirotsugu Ogi2nd ed. 2017.Tokyo :Springer Japan :Imprint: Springer,2017.1 online resource (XVI, 380 p. 287 illus., 44 illus. in color.)Springer Series in Measurement Science and Technology,2198-78074-431-56034-3 4-431-56036-X Includes bibliographical references at the end of each chapters and index.Introduction -- Coupling mechanism -- Available EMATS -- Brief instruction to build EMATS -- Principles of EMAR for spectral response -- Free-Decay measurement for attenuation and internal friction -- In-SITU monitoring of dislocation mobility -- Elastic constants and internal friction of advances materials -- Resonance Ultrasound microscopy -- Nonlinear acoustics for Microstractural evolution -- On-line texturer monitoring of steel sheets -- Acoustoelastic stress measurements -- Measurement of induction-hardening depth -- Detection of flaw and corrosion -- Average grain size of steel -- Remaining-life assessment of fatigued metals -- Creep damage detection -- Field applications of EMATS.This second edition provides comprehensive information on electromagnetic acoustic transducers (EMATs), from the theory and physical principles of EMATs to the construction of systems and their applications to scientific and industrial ultrasonic measurements on materials. The original version has been complemented with selected ideas on ultrasonic measurement that have emerged since the first edition was released. The book is divided into four parts: PART I offers a self-contained description of the basic elements of coupling mechanisms along with the practical designing of EMATs for various purposes. Several implementations to compensate for EMATs’ low transfer efficiency are provided, along with useful tips on how to make an EMAT. PART II describes the principle of electromagnetic acoustic resonance (EMAR), which makes the most of EMATs’ contactless nature and is the most successful amplification mechanism for precise measurements of velocity and attenuation. PART III applies EMAR to studying physical acoustics. New measurements have emerged with regard to four major subjects: in situ monitoring of dislocation behavior, determination of anisotropic elastic constants, pointwise elasticity mapping (RUM), and acoustic nonlinearity evolution. PART IV deals with a variety of individual issues encountered in industrial applications, for which the EMATs are believed to be the best solutions. This is proven by a number of field applications.Springer Series in Measurement Science and Technology,2198-7807Electronic circuitsMaterials scienceAcousticsAcoustical engineeringElectronic Circuits and Deviceshttps://scigraph.springernature.com/ontologies/product-market-codes/P31010Characterization and Evaluation of Materialshttps://scigraph.springernature.com/ontologies/product-market-codes/Z17000Acousticshttps://scigraph.springernature.com/ontologies/product-market-codes/P21069Engineering Acousticshttps://scigraph.springernature.com/ontologies/product-market-codes/T16000Electronic circuits.Materials science.Acoustics.Acoustical engineering.Electronic Circuits and Devices.Characterization and Evaluation of Materials.Acoustics.Engineering Acoustics.621.3815Hirao Masahikoauthttp://id.loc.gov/vocabulary/relators/aut825088Ogi Hirotsuguauthttp://id.loc.gov/vocabulary/relators/autBOOK9910148794003321Electromagnetic Acoustic Transducers2102293UNINA