scholarly journals Characterization of the Use of Low Frequency Ultrasonic Guided Waves to Detect Fouling Deposition in Pipelines

Sensors ◽  
2018 ◽  
Vol 18 (7) ◽  
pp. 2122 ◽  
Author(s):  
Habiba Lais ◽  
Premesh S. Lowe ◽  
Tat-Hean Gan ◽  
Luiz C. Wrobel ◽  
Jamil Kanfoud
Keyword(s):  
Guided Waves ◽  
Low Frequency ◽  
Ultrasonic Guided Waves

Inverse characterization of radius bone using low-frequency ultrasonic guided waves

2018 ◽  
Vol 144 (3) ◽  
pp. 1821-1821
Author(s):  
Daniel Pereira ◽  
Julio Fernandes ◽  
Pierre Belanger
Keyword(s):  
Guided Waves ◽  
Low Frequency ◽  
Ultrasonic Guided Waves

scholarly journals Applied Sciences Special Issue: Ultrasonic Guided Waves

2019 ◽  
Vol 9 (18) ◽  
pp. 3869 ◽  
Author(s):  
Clifford J. Lissenden
Keyword(s):  
Applied Sciences ◽  
Scientific Inquiry ◽  
Guided Waves ◽  
Ultrasonic Guided Waves ◽  
Special Issue ◽  
Practical Applications ◽  
Material State ◽  
Characterization Of Materials ◽  
Nondestructive Characterization

The propagation of ultrasonic guided waves in solids is an important area of scientific inquiry due primarily to their practical applications for the nondestructive characterization of materials, such as nondestructive inspection, quality assurance testing, structural health monitoring, and for achieving material state awareness [...]

The Characterization of Guided Waves on Hollow Cylinder From Non-Axisymmetric End Loading

2005 ◽  
Author(s):  
Longtao Li ◽  
Cunfu He ◽  
Bin Wu ◽  
Ying Li ◽  
Xiuyan Wang
Keyword(s):  
Hollow Cylinder ◽  
Cross Section ◽  
Guided Waves ◽  
Axial Direction ◽  
Guided Wave ◽  
Ultrasonic Guided Waves ◽  
Steel Pipe ◽  
Rapid Testing ◽  
Middle Point

Ultrasonic guided waves are used for the rapid testing of a steel pipe (O.D 70 mm, I.D 63 mm, 2544 mm long). The non-axisymmetric transducer ring (arc) is put on one end of the pipe to excite and receive the guided wave in the pipe. An artificial hole of 1 mm diameter can not be found by conventional axisymmetric end loading transducer. However, the non-axisymmetric transducer ring (arc), compared with the axisymmetric transducer ring, is very sensitive to the artificial hole when The middle point (MP) of the transducer arcs coincided with the center of the artificial hole on the cross section of the pipe. The results show that the non-axisymmetric end loading technology can locate the crack or defect on the pipe not only in the axial direction but also in the circumferential direction.

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