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About Group

About Group

Acoustics, Ultrasound and Vibration Metrology Group

The Acoustics, Ultrasound and Vibration Metrology Group develops and disseminates measurement standards and applied technology related to acoustics and vibration with the goal of establishing national infrastructure and strengthening competitiveness. The team conducts research that spans over a wide area of fields, from the establishment of national standards related to acoustics & vibration, and the development of signal processing technologies for advanced industries.

Current R&D Projects

  • 1 Research on new acoustic standards and acoustic unit redefinition
  • 2 Establishment of a national standards calibration system for linear vibration, rotational vibration, and shock
  • 3 Establishment of a calibration/testing system and related services for acoustic and vibration sensors, measuring instruments.
  • 4 Research on advanced measurement technology for ultra-low frequency band acoustics and vibrations to cover the seismic monitoring range
  • 5 Research on data collection and processing of acoustic and vibration signals for AI and machine-learning applications
  • 6 Environmental noise and audiology infrastructural support and R&D

Recent R&D Highlights

  • Establishment of the primary standard system based on the optical method for free-field sound (Expanded uncertainty ≤ 0.5 dB @ 0.5-20 kHz)
  • Development of the deep-learning based data acquisition and synthesis method for the real time localization of voice by drone
  • Establishment of the primary standard calibration system of low shock acceleration (Acceleration range: 100 ㎨ – 5,000 ㎨, Expanded uncertanty: 1.1 %)
  • Development of the long-stroke horizontal excitation system for the extremely low frequency range of linear vibration (Maximum stroke 1,400 mm, low frequency bound 0.01 Hz)
  • Development of the measurement method of phase velocity/absorption for micro scale elastic material
  • Improvement of the measurement standard for the high intensity ultrasound output
  • Development and application of the measurement technique of 3D temperature distribution for the HIFU thermometry

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