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Ultrasonography01:17

Ultrasonography

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Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...
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Updated: May 6, 2026

Three-dimensional Optical-resolution Photoacoustic Microscopy
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Acoustic Imaging Method for Gas Leak Detection and Localization Using Virtual Ultrasonic Sensor Array.

Mu Liang1, Kuan Yang1, Mingyang Feng1

  • 1School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China.

Sensors (Basel, Switzerland)
|March 13, 2024
PubMed
Summary
This summary is machine-generated.

This study introduces a novel acoustic imaging method using a virtual ultrasonic sensor array to detect and locate gas leaks. The technique offers high accuracy and stability for identifying gas leakage sources.

Keywords:
gas leakageimaging detection and localizationvirtual beamformingvirtual ultrasonic sensor array

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Area of Science:

  • Acoustics
  • Signal Processing
  • Sensor Technology

Background:

  • Gas leaks pose significant safety and economic risks.
  • Accurate detection and localization of gas leaks are crucial for industrial safety and environmental protection.
  • Traditional methods may have limitations in accuracy or operational complexity.

Purpose of the Study:

  • To propose and experimentally demonstrate an acoustic imaging method for gas leak detection and localization.
  • To utilize a virtual ultrasonic sensor array for enhanced signal processing.
  • To evaluate the method's accuracy, stability, and operability.

Main Methods:

  • Employing a scanning sensor array with two physical sensors to capture acoustic signals from gas leaks.
  • Processing the acoustic signal matrix using the cross-power spectrum method for time consistency.
  • Calculating the gas leak source location via virtual beamforming.
  • Investigating the impact of sensor number and spacing on method performance.

Main Results:

  • The proposed virtual sensor array method successfully detected and localized gas leaks.
  • Experimental results verified the method's high accuracy in source localization.
  • The technique demonstrated good stability across various experimental conditions.
  • The influence of sensor configuration parameters was analyzed.

Conclusions:

  • The virtual ultrasonic sensor array acoustic imaging method is effective for gas leak detection and localization.
  • The approach offers a stable and accurate solution for identifying gas leakage sources.
  • This method provides a promising advancement in gas leak monitoring technology.