Sound precision: acoustic resonance sets the tone for wind sensing

Daniel Reid, Head of Wind Energy Sales at FT Technologies, shares how the company’s proprietary acoustic resonance technology is setting new standards in wind measurement, delivering high-performance sensing for offshore wind and unlocking opportunities across maritime, aviation and autonomous systems.

PES: Thanks for taking the time to speak with us today, Daniel. Can I start by asking, with wind measurement technology being a competitive space, what differentiates FT Technologies’ sensors from other ultrasonic wind measurement solutions on the market?

Daniel Reid: FT Wind Sensors are exclusively powered by Acoustic Resonance (ACU-RES®) Technology, the proprietary invention of FT Technologies. This acoustic resonance measurement method differs significantly from the Time-of-Flight (ToF) principle used in other ultrasonic wind measurement solutions on the market.

The ToF principle works by measuring the transit time of ultrasonic pulses between transducers; one transmitting the pulse and the other receiving it. The system calculates the difference between the transit times with and against the wind to determine airflow characteristics.

In contrast, the acoustic resonance method uses a resonant cavity where sound waves oscillate back and forth. As the wind passes through the cavity, we measure the phase shift of the standing waves. This ensures improved data integrity within a compact and robust design, providing high and exceptional resistance to vibration and external interference, making it ideal for harsh environments.

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