The wind speed sensor type FT4021 serves for the transmission of electrically measured values of the wind speed. It is designed for a wide range of application in meteorology and environmental protection, e.g. automatic weather stations, airports, on research vessels, industrial sites, mobile measuring systems etc.

Electrical design and principle of operation

The DC-generator is driven by the rotating cup assembly, supplying a voltage proportional to the occurring wind speed. The output current ranges 0…1 mA, corresponding a measuring range 0…41 m/s, at a load resistance Ri = 4 kΩ.
This enables connection of up to four display meters or recorders joined in series, each having an internal resistance Ri =1 kΩ. For interfacing or subsequent data processing of measured values (averaging etc.) a number of electronic converters are available.

 Download Catalog        Request Quote