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Electromagnetic Acoustic Transducer

  • Songling HuangEmail author
  • Shen Wang
  • Weibin Li
  • Qing Wang
Chapter
  • 965 Downloads
Part of the Springer Series in Measurement Science and Technology book series (SSMST)

Abstract

As an important branch of the nondestructive testing field, ultrasonic testing is widely used in the industries of steel, electricity, petroleum, transportation, and medical and others. In the process of ultrasonic testing, the ultrasonic transducer is the core component of the excitation and reception of ultrasonic waves, mainly including the piezoelectric ultrasonic transducer and the electromagnetic acoustic transducer (EMAT). Compared with the piezoelectric ultrasonic transducer, EMAT has many advantages, such as being non-contact, no need for the coupling medium, and easy to produce the shear horizontal wave. In particular, it can be applied under a high-temperature environment, or when an isolation layer exists, and other special applications. It possesses a crucial application value and widespread application prospects.

Keywords

Ultrasonic Wave Static Magnetic Field Lamb Wave Bias Magnetic Field Lamb Wave Mode 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. 1.
    Zhang, Y.: Development of oil and gas pipeline crack detector based on EMAT. Tsinghua University, Beijing (2008) (in Chinese)Google Scholar
  2. 2.
    Li, P.: Detection device based on electromagnetic ultrasonic guided wave in pipe. Tsinghua University, Beijing (2012) (in Chinese)Google Scholar
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    Zhang, Y., Huang, S., Zhao, W., et al.: Crack detection system of steel plate by electromagnetic ultrasonic testing. Nondestr. Test. 31(4), 307–310 (2009) (in Chinese)Google Scholar
  4. 4.
    Huang, S., Zhao, W., Zhang, Y., et al.: Study on the lift-off effect of EMAT. Sens. Actuators 153(2), 218–221 (2009)CrossRefGoogle Scholar
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    Hao, K.S., Huang, S.L., Zhao, W.: Calculation of coil impedance and matching capacitance for EMAT. Chin. High Technol. Lett. 20(8), 845–849 (2010). (in Chinese)Google Scholar

Copyright information

© Tsinghua University Press and Springer Science+Business Media Singapore 2016

Authors and Affiliations

  • Songling Huang
    • 1
    Email author
  • Shen Wang
    • 1
  • Weibin Li
    • 2
  • Qing Wang
    • 3
  1. 1.Department of Electrical EngineeringTsinghua UniversityBeijingChina
  2. 2.Xiamen UniversityXiamenChina
  3. 3.Durham UniversityDurhamUK

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