Search found 3 matches
- Mon Aug 27, 2012 2:16 pm
- Forum: Sensors
- Topic: Wind sensor formula for mph
- Replies: 10
- Views: 27103
Re: Wind sensor formula for mph
On Arduino, I'm starting to think that this device is a better wind detector than it is a wind speed meter . I can easily tell the difference between some wind and no wind, for normal-range room temperature and for *most* trimpot positions (270 degrees seemed to always output the same value +/- 0.1%...
- Thu Aug 23, 2012 3:05 pm
- Forum: Sensors
- Topic: Wind sensor formula for mph
- Replies: 10
- Views: 27103
Re: Wind sensor formula for mph
I have gathered a lot of data, but I have found no clear pattern. In fact, some of the data at similar temperature shows less Voltage being used at higher wind speed. Will try varying my test environment next.
- Mon Aug 20, 2012 2:48 pm
- Forum: Sensors
- Topic: Wind sensor formula for mph
- Replies: 10
- Views: 27103
Re: Wind sensor formula for mph
I'm getting a $30 hand-held anemometer to try to calibrate this sensor. I'll try to derive a formula for a given extreme position of the trimpot (max counter clockwise or max clockwise) where temperature and Voltage are input and wind speed is output. I'll post it if I'm successful.