Development of Three Matching Layer Broadband Medical Ultrasonic Phased Array Transducer with 2-2 Piezoelectric Ceramic Composite

ZHANG Hao, ZHAO Cheng, SHI Xiumei, ZENG Tao

Materials For Mechanical Engineering ›› 2020, Vol. 44 ›› Issue (6) : 88-92.

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PDF(1934 KB)
Materials For Mechanical Engineering ›› 2020, Vol. 44 ›› Issue (6) : 88-92. DOI: 10.11973/jxgccl202006019

Development of Three Matching Layer Broadband Medical Ultrasonic Phased Array Transducer with 2-2 Piezoelectric Ceramic Composite

  • ZHANG Hao1, ZHAO Cheng1, SHI Xiumei2, ZENG Tao1
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Abstract

A three matching layer structure broadband medical phased array transducer was developed with 2-2 piezoelectric ceramic composite by three matching layer design scheme and KLM model optimization method. According to the design parameters, the medical phased array transducer was actually manufactured. The results show that the center frequency of actually produced medical phased array transducer was 2.95 MHz, and the relative bandwidth at -6 dB was about 83.2%, which were basically consistent with the theoretical design results (3.05 MHz, 87.8%) and met the design requirements. The transducer is expected to be used for imaging diagnosis of heart diseases.

Key words

medical phased array transducer / bandwidth / three matching layer structure

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ZHANG Hao, ZHAO Cheng, SHI Xiumei, ZENG Tao. Development of Three Matching Layer Broadband Medical Ultrasonic Phased Array Transducer with 2-2 Piezoelectric Ceramic Composite[J]. Materials For Mechanical Engineering, 2020, 44(6): 88-92 https://doi.org/10.11973/jxgccl202006019

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