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Author:

Pei, Cuixiang (Pei, Cuixiang.) | Xiao, Pan (Xiao, Pan.) | Zhao, Siqi (Zhao, Siqi.) | Chen, Zhenmao (Chen, Zhenmao.) (Scholars:陈振茂)

Indexed by:

SCIE EI Scopus

Abstract:

Electromagnetic acoustic transducers (EMATs) have been widely applied for non-contact and coupling free ultrasonic testing (UT) of metal structures. In this paper, a new EMAT of flexible film type with thickness less than 1 mm, which uses dual coil configuration but without a permanent magnet, is proposed for both ultrasound generation and detection. Instead of using permanent magnet, a planar magnetic coil fed with a rectangular-pulsed current with duration about 1.5 ms is used to generate magnetic flux in the test objects. The obvious advantages of the proposed flexible film EMAT are that it can be easily applied for non-contact and coupling-free UT of curved structures and objects with very narrow inspection space. Pulsed electromagnetic fields and the induced ultrasound waves are studied by simulation and experiment. The results show that the flexible film EMAT has a good performance for generating and receiving ultrasonic waves and can be easily applied for testing of curved structural component with narrow inspection space. (C) 2017 Elsevier B.V. All rights reserved.

Keyword:

Electromagnetic acoustic transducer Flexible film Magnetic coil Non-destructive testing

Author Community:

  • [ 1 ] [Pei, Cuixiang; Xiao, Pan; Zhao, Siqi; Chen, Zhenmao] Xi An Jiao Tong Univ, State Key Lab Strength & Vibrat Mech Struct, Shanxi Engn Res Ctr NDT & Struct Integr Evaluat, Xian 710049, Peoples R China
  • [ 2 ] [Pei, Cuixiang]Xi An Jiao Tong Univ, State Key Lab Strength & Vibrat Mech Struct, Shanxi Engn Res Ctr NDT & Struct Integr Evaluat, Xian 710049, Peoples R China
  • [ 3 ] [Xiao, Pan]Xi An Jiao Tong Univ, State Key Lab Strength & Vibrat Mech Struct, Shanxi Engn Res Ctr NDT & Struct Integr Evaluat, Xian 710049, Peoples R China
  • [ 4 ] [Zhao, Siqi]Xi An Jiao Tong Univ, State Key Lab Strength & Vibrat Mech Struct, Shanxi Engn Res Ctr NDT & Struct Integr Evaluat, Xian 710049, Peoples R China
  • [ 5 ] [Chen, Zhenmao]Xi An Jiao Tong Univ, State Key Lab Strength & Vibrat Mech Struct, Shanxi Engn Res Ctr NDT & Struct Integr Evaluat, Xian 710049, Peoples R China

Reprint Author's Address:

  • 28,West Xianning Rd, Xian, Peoples R China.

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Source :

SENSORS AND ACTUATORS A-PHYSICAL

ISSN: 0924-4247

Year: 2017

Volume: 258

Page: 68-73

2 . 3 1 1

JCR@2017

3 . 4 0 7

JCR@2020

ESI Discipline: ENGINEERING;

ESI HC Threshold:121

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 15

SCOPUS Cited Count: 30

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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