The Design, Fabrication and Characterization of a 32 Elements Flexible Linear Array Transducer Based on Pzt/Epoxy 1-3 Composite

Cheng, Dongxu; Wang, Hao; Hang, Hai; Li, Jianan; Zhou, Zhiyong; Liang, Ruihong

doi:10.2139/ssrn.4436270

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…No fluctuation is found on the logarithmic impedance curve. From the results above, the glass microsphere added in the epoxy mixture can help to eliminate the coupling effect on 1-3 piezoelectric composites, which reduces the curve fluctuation amplitude until it disappears [15,21]. Figure 7 shows the sound pressure and composite deformation at the vibration coupling point at different glass microsphere ratios.…”

Section: Simulation Resultsmentioning

confidence: 95%

Effect of Filling Material Properties on 1-3 Piezoelectric Composite Performance

Liu,

Zhou,

Zhao

et al. 2024

Micromachines

View full text Add to dashboard Cite

The 1-3 piezoelectric composite is the key component of the acoustic transducer, which is widely used in detection, due to the high energy conversion efficiency, cheap raw material, and low aging. To reveal the influence of epoxy mixture, used to connect the piezoelectric column, on the composite performance, a 1-3 piezoelectric composite model was built. The effects of mixture properties on the impedance curves, vibration mode, and deformation displacement of the composite were determined. Six 1-3 piezoelectric composites with different filling mixture properties, by changing the glass microspheres’ mass ratio in the epoxy, were prepared and measured to validate the model. The results showed that with the increase in the proportion of the glass microsphere in the epoxy mixture, the vibration coupling of the piezoelectric composites was gradually eliminated. The acoustic impedance was reduced by 12%. The electromechanical coupling coefficient and effective electromechanical coupling coefficient were increased by 5.4% and 8.3%, respectively. The density and Young’s modulus decrease in filling mixture can significantly improve piezoelectric composite performance.

show abstract

Section: Simulation Resultsmentioning

confidence: 95%