Formation of the acoustic field of a Rayleigh-wave transducer in an object with a protrusion. Part 2. Influence of the protrusion angle and other factors. Applied aspects

2014 ◽  
Vol 50 (8) ◽  
pp. 443-451
Author(s):  
A. R. Baev ◽  
M. V. Asadchaya ◽  
O. S. Sergeeva ◽  
G. E. Konovalov
Keyword(s):  
Rayleigh Wave ◽  
Acoustic Field ◽  
Wave Transducer

An Ultrasonic Rayleigh Wave Transducer and its Application to Nondestructive Pressure Measurement

2015 ◽  
Vol 742 ◽  
pp. 11-16 ◽  
Author(s):  
Zhang Wei Ling ◽  
Wei Yong Cai ◽  
Chao Li ◽  
Wei Can Guo
Keyword(s):  
Time Delay ◽  
Rayleigh Wave ◽  
Pressure Measurement ◽  
Engineering Application ◽  
Measurement Model ◽  
Ultrasonic Waves ◽  
Effect Of Temperature ◽  
Maximum Absolute Error ◽  
Piezoelectric Elements ◽  
Wave Transducer

An ultrasonic Rayleigh wave transducer was designed for nondestructive pressure measurement in vessels. Using polyimide resin as the wedge material, the Rayleigh wave transducer had two piezoelectric elements which were placed in the same wedge with a certain distance. Variations in pressure and temperature of vessels can affect the velocity of ultrasonic waves, which will affect variations in time delay in receiving of the same Rayleigh wave with the two piezoelectric elements of the designed transducer. Based on the acoustoelasticity principle and considered the effect of temperature, a practical correlation model between the time delay and both the pressure and temperature of vessels was developed. Using an air vessel as a specimen, Rayleigh wave transducers were arranged in the axial direction of the vessel. The results of temperature experiments show that effect of changes in temperature on time delay agree with the theoretical results. With the calculation temperature compensation in pressure experiment, the relationship between the variations in the time delay caused by changes of pressure and the pressure is established. The pressure measurement results show that the measurement model is effective and the maximum absolute error is 0.09 MPa, which could be acceptable in engineering application.

The surface barrier Rayleigh wave transducer

1979 ◽  
Vol 50 (8) ◽  
pp. 5307 ◽  
Author(s):  
L. Bjerkan ◽  
J. O. Fossum ◽  
K. Fossheim
Keyword(s):  
Rayleigh Wave ◽  
Surface Barrier ◽  
Wave Transducer

Analysis of Acoustic Field in Liquid Radiated by Dispersive Surface Acoustic Wave Transducer

1996 ◽  
Vol 35 (Part 1, No. 5B) ◽  
pp. 3196-3199
Author(s):  
Nobuhiro Tasaki ◽  
Koichi Mizutani ◽  
Keinosuke Nagai
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Acoustic Field ◽  
Wave Transducer

A Flexible Rayleigh Wave Transducer for Surface Cracks Detection on Heterogeneous Composite Explosives

2021 ◽  
Vol 64 (3) ◽  
pp. 420-426
Author(s):  
Zuguang Zhang ◽  
Bin Wu ◽  
Zhanfeng Yang ◽  
Pan Xiao ◽  
Weibin Zhang ◽  
...  
Keyword(s):  
Rayleigh Wave ◽  
Surface Cracks ◽  
Composite Explosives ◽  
Wave Transducer
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