Even if CTA has been replaced by LDA and PIV in many water applications, the use of film probes may still be an attractive option in special cases. Dantec Dynamics has therefore introduced a calibrator for this purpose.

The calibrator is a recirculating water tunnel with a submerged jet in a water reservoir in front of the jet. It covers velocities from 0.005 to 2 m/s with combinations of three different nozzles (600, 120 and 60 mm²). Velocity is calculated on the basis of a precision-variable area flowmeter reading. The calculation is made using an Excel spreadsheet supplied with the system.

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