Ultrasonic Wind Sensor How It Works

Ultrasonic anemometers first developed in the 1950s use ultrasonic sound waves to measure wind velocity.

Ultrasonic wind sensor how it works.

A lufft ventus ultrasonic wind speed and direction sensor an example of devices that may replace cup anemometers work well even in freezing weather. Find out more about our range of ultrasonic wind sensors and anemometers from ft technologies. The gill windsonic is a genuine low cost alternative to conventional cup and vane or propeller wind sensors with all of the advantages of solid state ultrasonic technology. The transducer of the sensor acts as a microphone to receive and send the ultrasonic sound.

A gill ultrasonic anemometer measures the time taken for an ultrasonic pulse of sound to travel from the north transducer to the south transducer and compares it with the time for a pulse to travel from s to n transducer. They measure wind speed based on the time of flight of sonic pulses between pairs of transducers measurements from pairs of transducers can be combined to yield a measurement of velocity in 1 2 or 3 dimensional flow. Ultrasonic sensors are also used to determine wind speed and direction. This 2 axis ultrasonic wind sensor offers maintenance free wind speed and direction monitoring for true fit and forget wind sensing.

Working principle of ultrasonic wind sensor. Sun can raise the temperature of. Avoid wind and sun. Accurate measurements of wind speed and direction from reliable equipment are more important than ever in today s competitive north american wind industry.

For instance doctors can determine gender of a fetus in the womb of its mother. Ultrasonic level sensors work by the time of flight principle using the speed of sound. How do gill ultrasonic anemometers work. The physical distance between the opposite facing sensors is fixed and known.

A typical ultrasonic anemometer consists of 2 pairs of ultrasonic transducers mounted at right angles to one another as shown in the figure below. Wind can blow through the vapor space and attenuate the signal or blow it off course. Our ultrasonic sensors like many others use a single transducer to send a pulse and to receive the echo. How ultrasonic sensors work.

The sensor emits a high frequency pulse generally in the 20 khz to 200 khz range and then listens for the echo. Ultrasonic sensors work by sending out a sound wave at a frequency above the range of human hearing. Each sensor is capable to transmit and receive ultrasonic pulses. Sonar and radar technologies are based on the same concepts.