Constant Temperature Anemometry (CTA), also known as Thermal Anemometry, is a technique for the measurement of turbulence in 1, 2 or 3-dimensional gas and liquid flows, using hot-wire or hot-film probes inserted in the flow.
Constant Temperature Anemometry is particularly suitable for the measurement of flows with very fast fluctuations at a point (high turbulence) and the study of flow micro structures, where there is a need to resolve small flow eddies down to the order of tenths of a mm.



  • Measures velocities from a few cm/s to supersonic.
  • High temporal resolution: fluctuations up to several hundred kHz.
  • High spatial resolution: eddies down to 1 mm or less.
  • Measures all three velocity components simultaneously.
  • Provides instantaneous velocity information.
  • Continuous analog output.

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