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Propagation Laws of Ultrasonic Continuous Signals at the Transmitting Transducer–Soil Interface

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  • Zhinan Wang

    (College of Engineering, China Agricultural University, Beijing 100083, China
    Scientific Observing and Experiment Station of Arable Land Conservation (North Hebei), Ministry of Agricultural and Rural Affairs, Beijing 100083, China)

  • Caiyun Lu

    (College of Engineering, China Agricultural University, Beijing 100083, China
    Scientific Observing and Experiment Station of Arable Land Conservation (North Hebei), Ministry of Agricultural and Rural Affairs, Beijing 100083, China)

  • Hongwen Li

    (College of Engineering, China Agricultural University, Beijing 100083, China
    Scientific Observing and Experiment Station of Arable Land Conservation (North Hebei), Ministry of Agricultural and Rural Affairs, Beijing 100083, China)

  • Chao Wang

    (College of Engineering, China Agricultural University, Beijing 100083, China
    Scientific Observing and Experiment Station of Arable Land Conservation (North Hebei), Ministry of Agricultural and Rural Affairs, Beijing 100083, China)

  • Longbao Wang

    (College of Engineering, China Agricultural University, Beijing 100083, China
    Scientific Observing and Experiment Station of Arable Land Conservation (North Hebei), Ministry of Agricultural and Rural Affairs, Beijing 100083, China)

  • Hanyu Yang

    (College of Engineering, China Agricultural University, Beijing 100083, China
    Scientific Observing and Experiment Station of Arable Land Conservation (North Hebei), Ministry of Agricultural and Rural Affairs, Beijing 100083, China)

Abstract

Ultrasonic detection is one of the main methods for information detection and has advantages in soil detection. Ultrasonic signals attenuate in soil, resulting in unique propagation laws. This paper studies the propagation laws of ultrasound in soil, focusing on the propagation characteristics of ultrasonic continuous signals at the transducer–soil interface. This study uses excitation frequency and amplitude as experimental factors and employs the discrete element simulation method to analyze the vibration characteristics of soil particles. It reveals the relationship between changes in soil pressure at the interface and the movement of the transducer. The results show that the motion curve of the transmitting transducer lags behind the soil pressure changes, and the energy of the ultrasonic signal increases with higher excitation frequency and amplitude. Specifically, the peak value of the first wave | H 0 | at 40 kHz and 60 kHz is 210% and 263% of that at 20 kHz, respectively. When the excitation amplitude increases from 0.005 mm to 0.015 mm, the value of the peak value of other waves | H | increases by 323%. This paper preliminarily reveals the propagation laws of ultrasonic continuous signals at the transducer–soil interface, providing theoretical support for the development of ultrasonic soil property detection instruments.

Suggested Citation

  • Zhinan Wang & Caiyun Lu & Hongwen Li & Chao Wang & Longbao Wang & Hanyu Yang, 2024. "Propagation Laws of Ultrasonic Continuous Signals at the Transmitting Transducer–Soil Interface," Agriculture, MDPI, vol. 14(9), pages 1-21, August.
    • Handle: RePEc:gam:jagris:v:14:y:2024:i:9:p:1470-:d:1466132
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    References listed on IDEAS

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    1. Ji‐wei Zhang & Julian Murton & Shu‐jie Liu & Li‐li Sui & Song Zhang, 2021. "Detection of the freezing state and frozen section thickness of fine sand by ultrasonic testing," Permafrost and Periglacial Processes, John Wiley & Sons, vol. 32(1), pages 76-91, January.
    2. Junzheng Li & Songlin Sun & Chaoran Sun & Cong Liu & Weiguo Tang & Haibi Wang, 2022. "Analysis of Effect of Grouser Height on Tractive Performance of Tracked Vehicle under Different Moisture Contents in Paddy Soil," Agriculture, MDPI, vol. 12(10), pages 1-28, September.
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    Cited by:

    1. Yadong Li & Caiyun Lu & Hongwen Li & Jin He & Zhinan Wang & Chengkun Zhai, 2025. "Acoustic Wave Propagation Characteristics of Maize Seed and Surrounding Region with the Double Media of Seed–Soil," Agriculture, MDPI, vol. 15(14), pages 1-18, July.

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