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Related Concept Videos

Ultrasonography01:17

Ultrasonography

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 a...

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Ultrasonic recording system without intrinsic limits.

Tórur Andreassen1, Annemarie Surlykke, John Hallam

  • 1Institute of Biology, University of Southern Denmark, Campusvej 55 5230 Odense M, Denmark. thor@biology.sdu.dk

The Journal of the Acoustical Society of America
|June 8, 2013
PubMed
Summary

Researchers developed a scalable ultrasonic recording system using affordable, open-source components. This modular bioacoustic system offers high-sample-rate, multi-channel data acquisition at a fraction of commercial costs.

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Area of Science:

  • Bioacoustics
  • Acoustic Engineering
  • Signal Processing

Background:

  • State-of-the-art bioacoustic research necessitates high-sample-rate, multi-channel, and long-term recording systems.
  • Existing commercial systems are prohibitively expensive, limiting accessibility for researchers.
  • There is a need for cost-effective, scalable, and high-performance acoustic monitoring solutions.

Purpose of the Study:

  • To propose and demonstrate an arbitrarily scalable ultrasonic recording system.
  • To design a modular system utilizing readily available retail components and open-source hardware/software.
  • To provide a cost-effective alternative to commercial bioacoustic recording systems.

Main Methods:

  • The system is designed with a modular architecture, where each module contains four microphones.
  • Modules can be interconnected to expand recording coverage, enhance spatial resolution, and increase redundancy.
  • The system leverages open-source software and hardware, combined with retail components for cost-efficiency.

Main Results:

  • The proposed system demonstrates arbitrary scalability with no inherent limitations.
  • Hardware specifications surpass competitors, offered at approximately 25% of the market price.
  • The system proved robust during a Danish winter deployment and was successfully integrated into a mobile robot for echolocation.

Conclusions:

  • The developed ultrasonic recording system is a feasible, cost-effective, and scalable solution for advanced bioacoustic research.
  • The system's modularity and use of open-source components make it highly adaptable and accessible.
  • Accurate ultrasonic measurements can be obtained even in large-scale deployments, validating its practical utility.