Fine Offset Anemometer Factor.

[Areecki]

My gust intervale ( km/h)

[Areecki]

If
0,67 m/s in 1 pulse per second = 2,412 km/h
My computer bicycle setttings is in mm


I use formue :

2,412 km/h = 2412000 mm/h : 3600 = 720 mm/72 cm
Need wheel diameter so :
720 / 3,14159265 = 2292 mm diameter

for 0,61 m/s in pulsce per secong is 1942 mm diameter

[AllyCat]

Hi,

I don't understand what the spreadsheet is supposed to show, but:

For one pulse (or revolution) per second, the equivalent wheel diameter should be 670 / PI mm = ~ 213 mm (or 21 cms).

Cheers, Alan.

[Areecki]

I use 900 mm in computer bicycle .

Maybe too much but I tested it I will show. Check station on the wind gust and writes values. As you can see a little bit higher Bicycle stores. Interval display bicycle computer is 2s.

WS 1090/ Bicycle Computer ( km/h)

14,8 ; 14,9
9,7 ; 10,2
11,2 ; 11,4
8,6 ; 8,3
11,2 ; 11,4
8,6 ; 8,3
11,2 ; 12,5
13,3 ; 13,5
11,2 ; 11,9
9,7 ; 10,5
12,2 ; 11,7
11,2 ; 11,8
14,8 ; 15,1
9,7 ; 10,4
12,2 ; 12,6
12,2 ; 11,8
12,2 ; 12,2
13,3 ; 13,3
11,2 ; 11,1


for : 900mm x 2 = 1800mm for 1 pulse per second
1800 / 3,1416 = 572,95
572,95 * 3600 = 2062620
2,062620 km/h = 0,5724 m/s

So, I need how mm use ? 895 ? 890 ?