[simpits-tech] Common aviation gauges that are air-core?

[Cris Harrison]

On 4/4/2012 2:47 AM, dabigboy at cox.net wrote:
> Well, tonight I've been knee-deep in Arduino goodness. I have once again stayed up far too late, but it has been very fruitful! So far I have:
>
> - Learned how to set and read the state of Arduino's pins;
>
> - Read a rotary encoder, and rolled my own debouncing code which allows me to spin the knob considerably faster;
>
> - Sent chars, strings, and ints to/from the Arduino and PC;
>
> - Successfully driven an air-core motor....woohoo!!!
>
> Baby steps, I know...though I am rather proud of the air core thing. :)  Anyway, as you can imagine, the Arduino opens up a whole new level of gadgetty goodness I can implement in my sim. Currently, I'm interested in air core motors...the motion is very smooth, completely silent, and can be very precise. Do you guys know of any sort of aircraft instruments in particular that tend to be air-core driven? Right now I am driving an old Cessna flap indicator that I picked up on ebay...original plan was to gut it and use a servo, until I ascertained upon delivery that it uses a simple air core motor. Now the indicator needle is merrily sweeping back and forth on my desk. :D
>
> I'm thinking simple instruments like AoA indicators, volt/ammeters, engine gauges, etc.
>
> Matt
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Congrats!!! Woopie!!
Cris H