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Ultrasonic Wind Speed and Direction Sensors

Ultrasonic wind speed and direction sensors installed on a 10 metre mast

Unlike mechanical wind sensors which have moving parts to detect and measure speed and direction, an ultrasonic wind sensor contains no moving parts. So how does it work?

A typical ultrasonic wind sensor utilises multiple transducers; a transducer generally converts energy into a signal. Each transducer emits a burst of sound at a frequency which is above human hearing, known as ultrasonic. The other transducers receive this burst and calculate the amount of time it has taken to receive the signal. The time taken for the signal will vary based on both the wind speed and direction. Therefore, the sensor converts the signal into a measurement, whether it be speed or direction.

Features at a Glance

  • Fast reaction time to changes in speed and direction
  • No moving parts to maintain or replace
  • Ability to record ultra-low wind speeds

Environdata does not currently manufacture an Ultrasonic Wind Sensor, however we supply on request a number of different brands to meet our customer’s needs.  We have supplied many systems with interfaces to both Vaisala and Gill sensors and can create a custom interface to your chosen sensor on request!

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Parameters measured

Wind Speed - Scalar

Wind Speed - Vector*

Wind Direction - Scalar

Wind Direction - Vector*

Sigma Theta*

*Not possible from every Ultrasonic sensor. We will match to your needs

Industry Applications

  • Meeting Australian Standards
  • EPA Reporting & Licensing
  • Meteorology
  • Wind Profiling
  • Pollution Tracking & Dispersion Monitoring

Compatible with

Weather Maestro

 

Features In Detail

Details & Advantages

Ultrasonic wind sensors provide several key benefits:

  • Fast reaction time to changes in speed and direction
  • No moving parts to maintain or replace
  • Ability to record ultra-low wind speeds and wind directions, which for some sites is crucial in determining odour drift
  • Favoured by some consultants due to their low wind capability

 

Points to Note

Ultrasonic wind sensors do not have moving parts, however they still require maintenance.  When deciding which sensors to use, please consider that Ultrasonic anemometers typically have:

  • Higher cost of purchase
  • Much longer downtime for repairs if sensor is damaged or faulty
  • Higher cost of calibration
  • Birds love them...so robust protection is needed!

 

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