Wind Sensor Rev. P

Questions about Modern Device and JeeLabs Sensors
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nickmpartz
Posts: 1
Joined: Sun Feb 10, 2019 2:49 pm

Wind Sensor Rev. P

Post by nickmpartz » Sun Feb 10, 2019 2:59 pm

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

paul
Site Admin
Posts: 724
Joined: Mon May 12, 2008 4:19 pm

Re: Wind Sensor Rev. P

Post by paul » Mon Feb 11, 2019 1:43 pm

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

Dimaio
Posts: 1
Joined: Wed Feb 27, 2019 4:43 am

Re: Wind Sensor Rev. P

Post by Dimaio » Thu Feb 28, 2019 7:26 am

Does this mean this wire is prone to damage if it's that fragile? Or did they protect it well?

paul
Site Admin
Posts: 724
Joined: Mon May 12, 2008 4:19 pm

Re: Wind Sensor Rev. P

Post by paul » Thu Feb 28, 2019 12:23 pm

The sensor is not a wire, it's a resistor.

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