Chinese Journal of Lasers, Volume. 50, Issue 18, 1804002(2023)

Research on Laser Ultrasonic Total Focusing Imaging Method Based on ZYNQ Acceleration

Chanjuan Wu1, Kaining Ying2, Lunan Dai2, Junfu Tan3, Zhonghua Shen2, and Chenyin Ni1、*
Author Affiliations
  • 1School of Electronic Engineering and Optoelectronic Technology, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
  • 2College of Science, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
  • 3College of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
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    Figures & Tables(14)
    Schematic of total focusing
    Schematic of total focusing for forming elliptic trajectories
    Directionality diagram of shear waves
    Schematics of UNROLL. (a) Before optimization; (b) after optimization
    Schematics of PIPELINE. (a) Before optimization; (b) after optimization
    Schematics of dual-core optimization of PS. (a) Shared peripheral communication diagram; (b) schematic before and after using dual-core design
    Diagram of experimental setup
    Scan diagrams of generation laser and detection laser
    Algorithm flow chart based on ZYNQ
    Results obtained using laser ultrasonic TFM. (a) TFM image without generation direction coefficients; (b) TFM image with generation direction coefficients; (c) side view of TFM image without generation direction coefficients; (d) side view of TFM image with generation direction coefficients
    Results obtained using laser ultrasonic SAFT. (a) SAFT image without generation direction coefficients; (b) SAFT image with generation direction coefficients; (c) side view of SAFT image without generation direction coefficients; (d) side view of SAFT image with generation direction coefficients
    TFM images based on ZYNQ. (a) Front view; (b) side view
    • Table 1. Usage of on-board resources

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      Table 1. Usage of on-board resources

      ResourceUtilization number

      Available

      number

      Utilization rate /%
      LUT429695320080.77
      LUTRAM26211740015.06
      FF4133510640038.85
      BRAM31402.14
      DSP9022040.91
      BUFG1323.13
    • Table 2. Comparison of running time and cost between ZYNQ-based TFM and PC-based TFM

      View table

      Table 2. Comparison of running time and cost between ZYNQ-based TFM and PC-based TFM

      TFIM calculation toolTime /sCost /yuan
      PC-based TFM602.65000
      ZYNQ-based TFM82.61500
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    Chanjuan Wu, Kaining Ying, Lunan Dai, Junfu Tan, Zhonghua Shen, Chenyin Ni. Research on Laser Ultrasonic Total Focusing Imaging Method Based on ZYNQ Acceleration[J]. Chinese Journal of Lasers, 2023, 50(18): 1804002

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    Paper Information

    Category: Measurement and metrology

    Received: Sep. 6, 2022

    Accepted: Dec. 20, 2022

    Published Online: Aug. 29, 2023

    The Author Email: Chenyin Ni (chenyin.ni@njust.edu.cn)

    DOI:10.3788/CJL221223

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