IRDAM Technology

1 Compact

  • Adaptable to any type of use

  • Easy to transport

4 Intelligent

2 Sturdy
  • Digital system
  • Able to communicate in a cabled or wireless network
  • Can be connected with an automatic alarm module 
  • Software with multiple and various functions
  • Without moving parts
  • Do not require any maintenance
  • Resists extreme climate
  • Resists to the marine environments (N version)

3 Powerful

  • Accuracy of ±0.5 m/s ±5% for winds from 0 to 70 m/s (252 km/h)

  • Do not require periodic calibration

  • Permanent Autotest

 

Thermal field variation

The IRDAM weather stations are high technology equivalent of the traditional rifleman's wet finger held to the wind.
The IRDAM Sensing element is a vertical cylinder. This cylinder is centrally heated and kept at a constant Dt above the ambient temperature. This set-up  produces a THERMAL FIELD around the cylinder.

 

Théorie du capteur vent

WIND SPEED

The wind cools off the cylinder. To keep the differential temperature, energy must be injected into the cylinder.
The amount of injected energy is a function of wind speed.
Computed wind speed is corrected in function of atmospheric pressure and temperature. The result is real wind speed.

WIND DIRECTION

At wind speed zero, the thermal field is circular with its centre on the axis of the cylinder.
When the wind is blowing, the thermal field gets distorted into a parabola.
The microprocessor determines the parameters of the parabola and figures out the wind direction.

Copyright 2007 IRDAM SA