FAQs

What makes FT ultrasonic wind sensors unique is our use of Acoustic Resonance Technology. Invented by our Executive Chairman, Dr Savvas Kapartis, and patented in 1997, Acu-Res® is a solid-state (no moving parts) technology for measuring wind speed and direction. It uses an [...]

Acoustic resonance technology monitors the shift in phase of the sound waves, rather than the time of flight principle, to calculate wind speed and direction. Achieving resonance inside the sensor cavity results in a high signal-to-noise ratio, making it more resistant to [...]

All FT sensors are calibrated in our own production wind tunnel. On request, we can supply the results of this calibration. Please contact us with the serial number of your sensor to request this service. If, however, a MEASNET calibration certificate is required, [...]

No. FT wind sensors are built using entirely solid-state technology. With no moving parts there is no measurement drift. The sensor will maintain a consistent calibration throughout its lifetime so no re-calibration is required. If you wish to change the calibration of [...]

No. The sensor also has no user-serviceable parts and so does not require regular maintenance. We do however recommend that you carry out annual visual inspections to ensure that the cavity is clear of obstructions and that no corrosion has occurred between [...]

Every FT wind sensor is fully calibrated in our factory wind tunnel during the manufacturing process, and each sensor design has been subjected to third party tunnel verification. Therefore, there is no need for additional external calibration. Some of our customers, however, [...]

FT7 Series wind sensors can output wind speed readings in m/s, km/h or knots. You can specify which option you would prefer at time of purchase.

The easiest way to change the settings on your sensor, is to use an FT Acu-Test Pack. This pack includes our Acu-Vis software, and a USB cable to connect your sensor to a PC or laptop. To purchase an Acu-Test Pack please [...]

If you wish to test your sensor in real time then you should use an Acu-Test Pack which allows you to connect the sensor to a PC via a USB cable. It will give wind speed and direction readings in real time. It also allows you to change [...]