Re: Anemometer errors
Posted: Wed 30 Jan 2013 8:38 pm
Hi Alan,
Thanks for the extra information. Looking back over my last three week's readings, it shows maximum wind speeds of 10mph and gust of 16mph.
A decent reed switch has a switching time less than 1ms closing, much less than that when opening (allowing for contact bounce), but with a strong magnetic field to operate it. Possibly the magnetic field is not adequate - magnet too weak to cause operation at speed and the fo reed being not up to snuff. I'm sort of going to give up for the time being, until I decide, if ever, to really try and sort it out.
I can tell if it's windier today, compared to yesterday, I suppose, but only if it was not very windy yesterday...
Best wishes,
Ray
Thanks for the extra information. Looking back over my last three week's readings, it shows maximum wind speeds of 10mph and gust of 16mph.
A decent reed switch has a switching time less than 1ms closing, much less than that when opening (allowing for contact bounce), but with a strong magnetic field to operate it. Possibly the magnetic field is not adequate - magnet too weak to cause operation at speed and the fo reed being not up to snuff. I'm sort of going to give up for the time being, until I decide, if ever, to really try and sort it out.
I can tell if it's windier today, compared to yesterday, I suppose, but only if it was not very windy yesterday...
Best wishes,
Ray