標(biāo)題: Titlebook: EMATs for Science and Industry; Noncontacting Ultras Masahiko Hirao,Hirotsugu Ogi Book 20031st edition Springer Science+Business Media New [打印本頁(yè)] 作者: choleric 時(shí)間: 2025-3-21 19:25
書(shū)目名稱(chēng)EMATs for Science and Industry影響因子(影響力)
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書(shū)目名稱(chēng)EMATs for Science and Industry讀者反饋
書(shū)目名稱(chēng)EMATs for Science and Industry讀者反饋學(xué)科排名
作者: accrete 時(shí)間: 2025-3-21 21:33 作者: Postulate 時(shí)間: 2025-3-22 04:13 作者: ARC 時(shí)間: 2025-3-22 06:13
Principles of Emar for Spectral Responseransducer is placed on the surface of a plate of thickness . and excites an ultrasonic plane wave of single cycle propagating in the thickness direction, whose wavelength and period are λ and ., respectively. The pulse wave undergoes the repeated reflections at both free surfaces and is received by 作者: CLAP 時(shí)間: 2025-3-22 12:05 作者: 休戰(zhàn) 時(shí)間: 2025-3-22 14:47 作者: 休戰(zhàn) 時(shí)間: 2025-3-22 19:40 作者: arthrodesis 時(shí)間: 2025-3-23 00:03
Nonlinear Acousticst interfaces. In the atomic scale, the interatomic potential contains non-parabolic terms of interatomic distance, the magnitude and characteristics being specific to the crystal. Those terms are the origin of non-Hookean behaviors of solids and also account for the thermal expansion and specific he作者: 掙扎 時(shí)間: 2025-3-23 02:21
On-Line Texture Monitoring of Steel Sheetsg and normal directions, in case of a rolled plate, showing an orthorhombic symmetry. The magnitude of the anisotropy is usually small and the fractional velocity differences are observed on the order of 10. at most. But, it is large enough to obscure the acoustoelastic effect, which refers to the u作者: DECRY 時(shí)間: 2025-3-23 08:54 作者: 綁架 時(shí)間: 2025-3-23 13:29
Measurements on High-Temperature Steelses, pipes, ...) are heated over 1000°C for thermomechanical processing while being moved at high speeds. Tight control of dimensions and qualities requires the on-line and noncontact/nondestructive assessment of interior conditions of intermediate products. Sensing should not perturb the process. Pr作者: surmount 時(shí)間: 2025-3-23 14:47 作者: Inferior 時(shí)間: 2025-3-23 20:56 作者: 擋泥板 時(shí)間: 2025-3-24 01:57
Average Grain Size of Steels 1970). Many techniques have been studied for nondestructive evaluation of grain size, including ultrasonic attenuation (scattering), X-ray diffraction, and magnetic tests. Among them, ultrasonic attenuation is the most promising, because it provides a through-thickness average of grain structure, o作者: 言行自由 時(shí)間: 2025-3-24 03:38
Marketing und Innovationsmanagementrequency response of the amplitude, or the resonance spectrum, thus includes many resonance peaks. The resonance frequencies are then used in an inverse calculation to find the set of elastic constants that give the measured resonance frequencies.作者: 花爭(zhēng)吵 時(shí)間: 2025-3-24 06:32 作者: 魔鬼在游行 時(shí)間: 2025-3-24 13:24
In-Situ Monitoring of Dislocation Mobility in their original paper and in many monographs (for example, Mason, 1958; Truell ., 1969). For frequencies well below the resonance frequency of a single dislocation-segment line, they can be reduced to ., ..作者: 變色龍 時(shí)間: 2025-3-24 18:25
On-Line Texture Monitoring of Steel Sheetsltrasonic-velocity changes and their anisotropy caused by stress, and is capable of measuring residual stress nondestructively (Chapter 10). One of major subjects of acoustoelastic studies has been the separation of the stressinduced anisotropy from the intrinsic anisotropy.作者: incite 時(shí)間: 2025-3-24 21:56
Detection of Flaw and Corrosionsee §10.4.2). They potentially induce wheel failure and derailment, causing catastrophic damage. Early detection of flaws is required for replacement, which is realized with the automatic inspection of every wheel on a train.作者: Mri485 時(shí)間: 2025-3-25 02:28
Handbibliothek für Bauingenieure in their original paper and in many monographs (for example, Mason, 1958; Truell ., 1969). For frequencies well below the resonance frequency of a single dislocation-segment line, they can be reduced to ., ..作者: Liability 時(shí)間: 2025-3-25 05:13
,Fette und fettartige K?rper (Lipoide),ltrasonic-velocity changes and their anisotropy caused by stress, and is capable of measuring residual stress nondestructively (Chapter 10). One of major subjects of acoustoelastic studies has been the separation of the stressinduced anisotropy from the intrinsic anisotropy.作者: 剝皮 時(shí)間: 2025-3-25 09:30 作者: 火光在搖曳 時(shí)間: 2025-3-25 11:41
https://doi.org/10.1007/978-3-662-41554-2see §10.4.2). They potentially induce wheel failure and derailment, causing catastrophic damage. Early detection of flaws is required for replacement, which is realized with the automatic inspection of every wheel on a train.作者: Substance-Abuse 時(shí)間: 2025-3-25 19:32 作者: athlete’s-foot 時(shí)間: 2025-3-25 23:16
,?Kultur“ und die Kulturwissenschaften, horizontal axis in Fig. 4.1 is the time measured from the excitation, and the vertical axis is the wave amplitude. .. denotes the round-trip time through the thickness. The amplitude decays as the propagation path increases, depending on attenuation of the material.作者: Benzodiazepines 時(shí)間: 2025-3-26 01:26 作者: choleretic 時(shí)間: 2025-3-26 08:18 作者: photophobia 時(shí)間: 2025-3-26 09:50 作者: 顯而易見(jiàn) 時(shí)間: 2025-3-26 13:00
Free-Decay Measurement for Attenuation and Internal Friction waves, relying on electromagnetic acoustic resonance (EMAR). Use of a noncontacting and weakly coupling EMAT has a distinctive advantage of eliminating the extra energy losses, which otherwise occur in case of using a conventional contacting transducer.作者: BRIEF 時(shí)間: 2025-3-26 17:30
Book 20031st editionand industrial ultrasonic measurements on materials. The text is arranged in four parts: .-PART I is intended to be a self-contained description of the basic elements of coupling mechanism along with practical designing of EMATs for various purposes. There are several implementations to compensate f作者: ABYSS 時(shí)間: 2025-3-26 23:02
Book 20031st editionoring of dislocation behavior, determination of anisotropic elastic constants, and acoustic nonlinearity evolution. .-PART IV deals with a variety of individual topics encountered in industrial applications, for which the EMATs are believed to the best solutions.作者: 圖畫(huà)文字 時(shí)間: 2025-3-27 01:56
situ monitoring of dislocation behavior, determination of anisotropic elastic constants, and acoustic nonlinearity evolution. .-PART IV deals with a variety of individual topics encountered in industrial applications, for which the EMATs are believed to the best solutions.978-1-4757-3743-1作者: FOVEA 時(shí)間: 2025-3-27 05:48 作者: harrow 時(shí)間: 2025-3-27 10:30 作者: –scent 時(shí)間: 2025-3-27 15:00 作者: adjacent 時(shí)間: 2025-3-27 19:22
Measurement of Induction-Hardening Depthgives the case thickness in an A-scope display. It, however, requires the parts to be immersed in a water tank for acoustic coupling, making on-line inspection inapplicable. Another shortcoming is that the dominant front echo masks the signal from a shallow interface and this technique fails for a t作者: ANTI 時(shí)間: 2025-3-27 23:36
n, and (iii) magnetostriction mechanism by the piezomagnetic effect. The Lorentz-force mechanism arises in all conducting materials, while other two appear only in ferromagnetic materials. For nonmagnetic metals, therefore, the Lorentz-force mechanism explains exactly the transfer with an EMAT (Gaer作者: 灰姑娘 時(shí)間: 2025-3-28 05:30
undaries in natural rocks, for instance. The opposite faces are in contact with each other but not well tightly. They open, close, or grind responding to the applied stress and acoustic fields. This rectifying effect can distort the waveform causing the nonlinearity.作者: 館長(zhǎng) 時(shí)間: 2025-3-28 09:13
Physikalisch-chemische Vorbemerkungen,will be reviewed in the following sections. They used EMATs to launch and detect pulsed longitudinal wave in the low-MHz range. The time-of-flight becomes an interior temperature gauge, enabling noncontact and real-time monitoring.作者: 摘要記錄 時(shí)間: 2025-3-28 11:31 作者: stroke 時(shí)間: 2025-3-28 14:48 作者: prostatitis 時(shí)間: 2025-3-28 19:59 作者: invade 時(shí)間: 2025-3-29 02:52
https://doi.org/10.1007/978-3-662-31564-4ic waves. The liftoff (or air gap) between the coil and specimen surface must be minimized as much as possible because it exponentially lowers the efficiency of the EMAT as indicated by Eq. (1.29). Moreover, the coil should be flexible for bending and twisting to accommodate curved specimen surfaces作者: 按等級(jí) 時(shí)間: 2025-3-29 05:37 作者: 外來(lái) 時(shí)間: 2025-3-29 07:41 作者: Surgeon 時(shí)間: 2025-3-29 13:46
Handbibliothek für Bauingenieureits energy, resulting in increase of attenuation a and decrease of modulus. Granato and Lücke (1956) established a dislocation-damping theory to relate the ultrasonic velocity and attenuation with dislocation characteristics such as the segment length . and density Λ. The detailed expressions appear作者: CRASS 時(shí)間: 2025-3-29 15:38
Marketing und Innovationsmanagementas a useful method to determine elastic constants of solids, including those with a lower crystallographic symmetry. The usual RUS configuration consists of a well-shaped specimen such as sphere, cylinder, or rectangular parallelepiped and two piezoelectric transducers that sandwich the specimen at 作者: Harbor 時(shí)間: 2025-3-29 21:53
t interfaces. In the atomic scale, the interatomic potential contains non-parabolic terms of interatomic distance, the magnitude and characteristics being specific to the crystal. Those terms are the origin of non-Hookean behaviors of solids and also account for the thermal expansion and specific he作者: FLOAT 時(shí)間: 2025-3-30 03:14 作者: 慢跑 時(shí)間: 2025-3-30 07:04 作者: Feature 時(shí)間: 2025-3-30 09:32
Physikalisch-chemische Vorbemerkungen,es, pipes, ...) are heated over 1000°C for thermomechanical processing while being moved at high speeds. Tight control of dimensions and qualities requires the on-line and noncontact/nondestructive assessment of interior conditions of intermediate products. Sensing should not perturb the process. Pr作者: 返老還童 時(shí)間: 2025-3-30 14:54
https://doi.org/10.1007/978-3-642-99427-2gh-frequency AC current up to the austenitic phase (fcc) and then quenched. Phase transformation (fcc to bct) produces a case of hardened metal and compressive residual stress, both of which enhance tolerance for fatigue, wear, and corrosion during service. There are currently two techniques for cas作者: Mirage 時(shí)間: 2025-3-30 20:14
https://doi.org/10.1007/978-3-662-41554-2er, 1983; Schramm ., 1989). The flaws may result from the contact stress with rails, fatiguing, and tensile residual stress caused by excess braking (see §10.4.2). They potentially induce wheel failure and derailment, causing catastrophic damage. Early detection of flaws is required for replacement,作者: 只有 時(shí)間: 2025-3-30 20:45 作者: interlude 時(shí)間: 2025-3-31 01:59
,Ich H?tt Geküsst die Spur von Deinem Tritt,terization of materials. The principal advantage is the capability of probing inside of solid materials, making a contrast with other techniques like the optical methods, X-ray diffraction, and the magnetic-testing methods, which are applicable to sensing the surface or near-surface region.作者: diabetes 時(shí)間: 2025-3-31 07:42
