System Performance of Absolute Quartz-Crystal Barometers with Sub-Microbar Precision

Abstract

The performance of absolute quartz-crystal barometers is analyzed and discussed. Their ability to measure sub-microbar, atmospheric pressure fluctuations at time scales down to seconds is demonstrated. The first observations of ocean-generated, atmospheric infrasound with periods of about 5 s and sub-microbar amplitudes, called microbaroms, using single absolute barometers are presented. It is concluded that these absolute quartz-crystal barometers can be used effectively for infrasound monitoring.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2009
Accession Number
ADA532511

Entities

People

  • Ganesh K. Ananthanarayanan

Organizations

  • University of Massachusetts Amherst

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Acoustic Propagation
  • Acoustic Waves
  • Algorithms
  • Barometric Pressure
  • Command And Control
  • Data Processing
  • Frequency Bands
  • Frequency Response
  • Global Positioning Systems
  • Infrasounds
  • Measurement
  • Operating Systems
  • Power Spectra
  • Resonant Frequency
  • Surface Waves
  • Three Dimensional

Fields of Study

  • Environmental science

Readers

  • Coastal Oceanography
  • Munitions and Ordnance Engineering
  • Seismology