Ultrasonic Wind Speed and Direction Sensor (SDI-UWS-GILL)

The FTS ultrasonic wind speed and direction sensor is a low cost alternative to conventional cup and vane or propeller type wind sensors. It is robust and lightweight with no moving parts. It uses an SDI-12 interface and therefore offers several advantages over analog sensors.

• Considerably more robust than ‘cup and vane’ type sensors
• Simple and light to deploy
• No moving parts—unaffected by perching birds
• Manufactured from a polycarbonate blend, its exterior will not corrode
• Suitable for land or marine applications

This anemometer measures the time taken for an ultrasonic pulse to travel from one transducer to the opposite transducer and then compares it with the time taken for another pulse to travel in the opposite direction. Likewise, differences are measured between other pairs of transducers.

Because sound travels more quickly with wind direction, and more slowly against wind direction, both wind speed and direction are thus calculated.

This sensor has a wind speed range of 0 to 133 mph and a wind direction range of 0 to 359º (with no dead band).