• Flow Monitoring

    Get precise flow data in any lake, stream and river

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  • rQPOD Remote Survey Boat

    A lightweight, portable solution for
    conducting and recording water surveys.

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  • SonTek-SL Doppler Current Meter

    A simple way to measure water velocity
    and level in open channels.

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  • SonTek-IQ Series

    Ideal for monitoring flows in canals, culverts,
    pipes and natural streams.

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WANT TO TALK TO A SONTEK SPECIALIST?

India Railway Safety

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Over time, scour can cause dangerous foundation instability and is the leading cause of bridge failure. Acoustic technology makes railways safer.

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Science and Exploration

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See the CastAway-CTD used in a global, scientific venture to monitor marine wildlife in some of the most remote places in the world.

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Careers in Water

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See the CastAway-CTD used in a global, scientific venture to monitor marine wildlife in some of the most remote places in the world.

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Stay informed

When you sign-up for eNews, you will be first to know about cool new product updates and releases, have the opportunity to gain insight from other water monitoring professionals who are using acoustics as part of their data collection programs, and hear about important training events that might help improve your knowledge of SonTek instrumentation.

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Comparison of Doppler Flow Meter Types: Low-Cost Continuous Wave vs Multi-Cell, Pulsed Doppler Systems

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Find out why not every flow meter is created equally. Take a comprehensive look at the functional and technical differences between continuous wave vs Multi-cell pulsed Doppler technology and the advantages and disadvantages of each including:

  • Principle of operation
  • Number of beams
  • Bias potential
  • Depth requirements
  • Minimum velocity requirements
  • Flow calculation
  • Accuracy

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