Wind Speed Sensor

The WS series Wind Speed Sensor uses a sensitive 3-cup anemometer to measure wind speed and wind run. Three conical shaped aluminium cups of optimum proportions turn the main spindle. The spindle is supported by two special low torque, stainless steel low-friction bearings, which results in low starting threshold, and excellent low wind speed accuracy. The body of the sensor is symmetrical and well clear of the three rotating cups, which helps to minimise interfering eddies.

Features

Hall Effect sensing for the ultimate accuracy, resolution & reliability
Low friction bearings
Very low starting threshold
Good dynamic characteristics
Long Operating life

Applications

Monitoring Wind Direction for EPA licences
Satisfying Australian Standards
Meteorology
Wind Profiling
Crop Studies
Ecology
Pollution Control

Summary

The WS45 Series Wind Speed Sensor uses a sensitive 3-cup anemometer designed to measure wind speed and wind run in isolated locations with a minimum of attention.

Three conical shaped aluminium cups of optimum proportions turn the main spindle. The spindle is supported by two special low torque, stainless steel, low-friction bearings. The dynamic characteristics of the unit are exceptionally good because the moment of inertia of the rotating parts is very low.

The body is symmetrical and well clear of the three rotating cups which helps to minimise interfering eddies. The above features enhance the sensitivity of the instrument and make it ideally suited to the study of micro-climates. The output pulses are generated by hall effect triggers mounted on the lower end of the spindle, which provide an ideal frictionless coupling, that is quite robust and will not require field recalibration for many years.

The spindle body is undercut to prevent entrance of moisture through the upper "O"ring. A labyrinth significantly reduces entrance of dust or moisture into the upper bearing.

Use Environdata's IS37 and WD45 Wind Direction sensor in conjunction with the WS45 for a complete wind monitoring package suitable to meet EPA requirements in all states and territories of Australia (Including AM-1, AM-3, AM-4 in NSW).

This system will meet the Australian Standards and when used as part of an Environdata Weather Station (by connecting to a Weather Maestro or WeatherMate 3000 data logger) can provide you with very accurate tracking of the wind, including a sigma theta calculation from the data logger, AirData Software for calculating the net movement of the air, and WindRose for displaying a graphical summary of wind distribution over time.

More information

WS45 Wind Speed Sensor (383 KB)

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