J
Jonathan D. Buttram
Researcher at Babcock & Wilcox
Publications - 4
Citations - 73
Jonathan D. Buttram is an academic researcher from Babcock & Wilcox. The author has contributed to research in topics: Electromagnetic acoustic transducer & Transducer. The author has an hindex of 4, co-authored 4 publications receiving 73 citations.
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Patent
Method for determining deposit buildup
TL;DR: In this paper, a method of determining low density deposits on the inner surface of a boiler tube comprises the generation of ultrasonic energy which is directed from the outer surface of the tube to the inner surfaces.
Patent
Emat measurement of ductile cast iron nodularity
TL;DR: In this article, a method of examining a ductile iron casting to determine a percent nodularity present in the casting uses an electromagnetic acoustic transducer (EMAT) system to determine the time of flight of an ultrasonic shear wave pulse transmitted through the casting at a selected location, from which a velocity of sound in the cast can be determined.
PatentDOI
Crack orientation determination and detection using horizontally polarized shear waves
TL;DR: In this paper, a transducer is placed on the surface of the material for propagating a shear wave for reflection off of the back wall of a material and the reflected signal is evaluated such that no signal or a weak signal indicates the presence of a crack.
Patent
High temperature electromagnetic acoustic transducer
TL;DR: An improved high temperature electromagnetic acoustic transducer (EMAT) for conducting inspections of materials with elevated temperatures, which has cooling means using gas cooling, such as air or nitrogen, for cooling the transducers RF coil, the onboard circuitry and magnets, while also providing for the easy removal of the coil and onboard circuitry as mentioned in this paper.