Ideal Anemometer placement would conflict with photonics module

originalfoo commented 7 years ago

Placement:

Can't place anemometer at top, because it would get in way of photonics.
Can't really place it at bottom, because it would be affected by mounting rod
Can't really place it in middle as it would get in the way of wires between modules, and weaken design, not to mention issues relating to Stevenson Screen.

Tech:

Ultrasonic is do-able, but not sure how to process the results
Microwave might be interesting to investigate - it's not sound, so unaffected by wind?
How does heat affect things ultrasonic/microwave?
Could use heated wire approach? - eats too much power
Normal spinning cup things will freeze in winter

originalfoo commented 7 years ago

Could potentially use [venturi style anemometers] (with barometers measuring differential between two points). But out in a field, the tubes will get clogged quickly?

originalfoo commented 6 years ago

5am brianfart...

Wind = pressure turbulence = sound turbulence

Why bother adding more sound to the mix?

It's easier to filter to our added (ultrasound) because we know what it was like when we created it and we can determine how it's changed when we receive it.

But... Surely we could just listen to the wind? Usually it's infrasound - we can't hear it, but we can feel it... as the wind picks up, we feel it more and eventually start to hear it "howling/whistling wind", if it got really turbulent it could even go in to ultrasonic? Anyway, if we know the sound frequency characteristics of an object for a given (eg. current) temperature, we know how it will affect sound (pressure) ...we can listen to that object - eg. with a gyroscope or wideband microphone - and work out what the wind is doing? Do that in 3 or more locations, and we can triangulate the wind direction, speed, etc?

We're not interested in pressure as such (barometer), what we're interested in changes in pressure = sound.

Could the Stevenson Screen be turned in to an anemometer? If so, would merit having shock absorber (rubber seal) between Screen and main sensor module?

originalfoo / SensorArray

Ideal Anemometer placement would conflict with photonics module #29