study on attenuation properties of surface wave of ae simulation source based on opcm sensor element
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ID: 162390
2018
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Abstract
It is of great significance to grasp the ultrasonic attenuation characteristics of materials for the nondestructive testing of materials. The dynamic properties of a piezoelectric composite material (OPCM) with self-developed transverse anisotropy have been analyzed using the experiment in this work. The OPCM sensor is attached to the surface of the iron plate and concrete structures to sense the surface waves generated by acoustic emission (AE). The experiment results show that OPCM sensor elements have unique advantages compared to piezoelectric ceramic materials (PZT). Further, by comparing the signals of isotropic and anisotropic materials, the attenuation characteristics of surface waves propagating in different materials are studied, and a new method for measuring the attenuation coefficient of surface waves is demonstrated.
| Reference Key |
wang2018journalstudy
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| Authors | ;Ziping Wang;Xian Xue;Xingjia Li;Zhengxuan Jiang;Karthik Reddy |
| Journal | BMC infectious diseases |
| Year | 2018 |
| DOI |
10.1155/2018/6926594
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| URL | |
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