Hi,
Sorry, that doesn't help very much, an exact figure for "wind run per revolution (or per pulse)" is essential.
That involves the "Anemometer Factor", for example from Wikipedia:
"... the ratio of the speed of the wind and that of the cups, the anemometer factor, depends on the dimensions of the cups and arms, and may have a value between two and a little over three."
In practice, the only method is to calibrate the anemometer in a Wind Tunnel and/or beside a known precision reference grade anemometer. A "poor man's solution" might be to attach it to a moving vehicle with a GPS, in still air, but that is a very difficult measurement to make accurately.
However, that particular design does look quite "familiar", so perhaps somebody can identify the Original Manufacturer or some test data?
Cheers, Alan.
Sorry, that doesn't help very much, an exact figure for "wind run per revolution (or per pulse)" is essential.
That involves the "Anemometer Factor", for example from Wikipedia:
"... the ratio of the speed of the wind and that of the cups, the anemometer factor, depends on the dimensions of the cups and arms, and may have a value between two and a little over three."
In practice, the only method is to calibrate the anemometer in a Wind Tunnel and/or beside a known precision reference grade anemometer. A "poor man's solution" might be to attach it to a moving vehicle with a GPS, in still air, but that is a very difficult measurement to make accurately.
However, that particular design does look quite "familiar", so perhaps somebody can identify the Original Manufacturer or some test data?
Cheers, Alan.