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Wind Sensor Rev. P

Posted: Sun Feb 10, 2019 2:59 pm
by nickmpartz
Hi all,

I've got a quick question. I'm trying to understand how the Wind Sensor Rev. P works.
Can someone give me some info about the sensing element connected between JP1 and JP5? (named SENS in the schematic) Is it a small resistor, a small piece of wire or is it something else?


Any help would be much appreciated,
Nick

Re: Wind Sensor Rev. P

Posted: Mon Feb 11, 2019 1:43 pm
by paul
The sensor is a thermistor, a resistor that changes with temperature.

In a more high end hot wire anemometer it would indeed by a "hot wire" a very thin (and very fragile) wire that is heated.

Paul Badger

Re: Wind Sensor Rev. P

Posted: Thu Feb 28, 2019 7:26 am
by Dimaio
Does this mean this wire is prone to damage if it's that fragile? Or did they protect it well?

Re: Wind Sensor Rev. P

Posted: Thu Feb 28, 2019 12:23 pm
by paul
The sensor is not a wire, it's a resistor.