Measurement Techniques

, Volume 41, Issue 6, pp 514–519 | Cite as

High-accuracy method for measuring profiles of buoyancy periods

  • S. A. Smirnov
  • Yu. D. Chashechkin
  • Yu. S. Il'inykh
General Problems of Metrology and Measurement Technology


We present a theoretical basis for a direct method of determining buoyancy period (frequency) as a function of depth by registering the displacements and oscillations of the hydrodynamic wake formed in a stationary liquid by freely ascending bubbles (the density marker method). We achieve an error no greater than 5% by comparing theoretical computations of parameters for internal waves generated by a free submerged thin wake having uniform transverse density distribution in an exponentially stratified liquid with measurements of internal waves in the liquid. We find that there is a power law for the decrease in amplitude of internal oscillations with time.


Internal Wave Density Marker Buoyancy Frequency Specific Electrical Conductivity Stratify Medium 
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Copyright information

© Kluwer Academic/Plenum Publishers 1999

Authors and Affiliations

  • S. A. Smirnov
  • Yu. D. Chashechkin
  • Yu. S. Il'inykh

There are no affiliations available

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