Design and Fabrication of Air-Based 1-3 Piezoelectric Composite Transducer for Air-Coupled Ultrasonic Applications
Joint Authors
Wu, Bin
Lu, Yan
He, Cunfu
Wang, Yaoyao
Liu, Yuepeng
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-06-20
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The air-based 1-3 piezoelectric composite transducers are designed and fabricated in order to solve the acoustic impedance matching problem.
Firstly, a finite element model using honeycomb structure as the piezoelectric composite matrix is built to reduce the acoustic impedance of the sensitive element.
Three important factors, volume fraction of piezoelectric materials φ , the thickness h , and the size s of the square cross section of piezoelectric column, are examined and verified in simulation.
Then, according to the result of simulation, the piezoelectric composites and the air-coupled transducers are fabricated.
The honeycomb structures of resin are produced by the method of 3D printing technology, with the volume fraction of air being 30%.
The impedance characteristics and the excitation/reception performance of the air-coupled transducers are measured and optimized.
Meanwhile, a scanning experiment is carried out to demonstrate the crack detection process in monocrystalline silicon.
A 0 mode of Lamb waves is excited and collected.
The location and size of the defect will be determined by calculating the correlation coefficients of the received signals and reference signals.
Finally, a 15 mm × 0.5 mm × 0.5 mm scratch is clearly distinguished.
American Psychological Association (APA)
He, Cunfu& Wang, Yaoyao& Lu, Yan& Liu, Yuepeng& Wu, Bin. 2016. Design and Fabrication of Air-Based 1-3 Piezoelectric Composite Transducer for Air-Coupled Ultrasonic Applications. Journal of Sensors،Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1110490
Modern Language Association (MLA)
He, Cunfu…[et al.]. Design and Fabrication of Air-Based 1-3 Piezoelectric Composite Transducer for Air-Coupled Ultrasonic Applications. Journal of Sensors No. 2016 (2016), pp.1-11.
https://search.emarefa.net/detail/BIM-1110490
American Medical Association (AMA)
He, Cunfu& Wang, Yaoyao& Lu, Yan& Liu, Yuepeng& Wu, Bin. Design and Fabrication of Air-Based 1-3 Piezoelectric Composite Transducer for Air-Coupled Ultrasonic Applications. Journal of Sensors. 2016. Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1110490
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1110490