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Width gauge for hot steel plates by laser-scanning rangefinder
SPIE Proceedings, 1991The authors developed a new advanced laser scanning range finder. The width gauge consists of a pair of these range finders. Conventional gauges cannot measure the effective width of complexly shaped plate edges. However, the gauge measures both side profiles of a plate and calculates the effective width with an accuracy of +/- 1.5 mm. This new type of
Yuzi Adachi, Kenichi Matsui
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Review of Scientific Instruments, 2021
In this paper, the width and depth of rectangular surface-breaking defects were successfully gauged using an all-optical laser-ultrasonic system. The finite element method was used to simulate propagating paths of defect-induced reflected and transmitted Rayleigh waves. It is observed that most Rayleigh waves with wavelengths less than the depth of the
Cheng Chen +6 more
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In this paper, the width and depth of rectangular surface-breaking defects were successfully gauged using an all-optical laser-ultrasonic system. The finite element method was used to simulate propagating paths of defect-induced reflected and transmitted Rayleigh waves. It is observed that most Rayleigh waves with wavelengths less than the depth of the
Cheng Chen +6 more
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Width gauging of surface slot using laser-generated Rayleigh waves
Optics & Laser Technology, 2017Abstract A method of width gauging of surface slot using laser-generated Rayleigh waves in time domain is presented. A two-step detection is employed in this method, Rayleigh waves are first generated on one side of the surface slot and then on the other side.
Chuanyong Wang +5 more
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What information can be obtained from the widths of the gauge vector boson?
Lettere al Nuovo Cimento, 1984Recent experimental data by UA1 and UA2 groups for the gauge vector boson productions are compared with the theoretical estimates based on QCD withK-factor. Moreover, we discuss the effects due to the heavy-quark masses and the number of fermion generations on the decay widths of the gauge vector bosons.
M. Hayashi, K. Katsuura
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Decay width in e+e- of a new light gauge boson
Il Nuovo Cimento A, 1998We consider a hypothetical light gauge boson X that couples only to quarks with mass so as to prevent decays through hadronic channels and calculate its decay width in e+e- studying the mixed X-γ propagator. In order to reduce the uncertainties due to light quark masses, the calculation is repeated using a dispersion relation relating the width to ...
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Laser-generated Rayleigh wave for width gauging of subsurface lateral rectangular defects
Journal of Applied Physics, 2018In this study, the widths of subsurface lateral rectangular defects were successfully gauged using laser-generated Rayleigh waves. Finite element analysis was used to simulate the interaction between Rayleigh waves and subsurface defects. The results of the simulation show that diffracted bulk modes resulting from the interaction between Rayleigh waves
Chuanyong Wang +4 more
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A gauge for the width of cross-sectional elements of rolled sections
Metallurgist, 1977V. D. Esipov, V. V. Nikiforov
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Strip-width gauge based on charge-coupled elements
Metallurgist, 1986V. S. Merzlyakov +5 more
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Gauge inertness, mixing wedges, and complete flavour from a single misalignment width
The paper addresses a practical gap in the flavour-texture literature: models based on Froggatt-Nielsen charges routinely compare UV Yukawa ansatze with low-energy mixing data, yet the conditions under which this comparison is valid without gauge RG running, and the minimum off-diagonal structure required by current data, are typically handled ...openaire +1 more source