[simpits-tech] Driving Resolvers

[Marv De Beque]

Interesting.  I had a chance, not long ago, to tear open an F-16 ADI and 
the primary motor drove the sphere with a set of gears.  The motor 
needed to make many revolutions to turn the sphere once.  I wonder how 
it sensed the sphere's position since the motor and sphere were not one 
to one gearing.  Somehow it needs to know its absolute position when 
power is restored.

Marv

On Sunday, April 7, 2002, at 08:00 PM, Ross Hutton wrote:

>  --- Marv De Beque <debequem@speakeasy.net> wrote: >
> That sounds like it is the resolver part of the ADI.
>>  The resolver is
>> used to precisely measure the angular position of a
>> shaft.  You are
>> right about the method of powering the resolver.
>>
>> I don't know what they use in the ADI to actually
>> drive the ADI
>> movement, but it is probably some form of DC motor
>> that is monitored by
>> the resolver - my guess.  Maybe it is an all-in-one
>> type thing.  I need
>> to do some more research.
>
> There's no real need for another motor. A torque
> receiver synchro will convert a 3 phase voltage
> directly into a shaft angular displacement.
>
>
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> Ross
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