[simpits-tech] Driving Resolvers

[Ross Hutton]

 --- Marv De Beque <debequem@speakeasy.net> wrote:  
> Here is a portion of my Syncro 101 post:
> 
> "A synchro is essentially a compass needle with two
> electromagnets 
> located at the perimeter of the needle, one at the
> North pole and one at 
> the East.  By varying the magnitude and the polarity
> of the current 
> induced in the two electromagnets, you can make the
> needle point 
> anywhere on the dial!  

Maybe the devices used in aviation instruments are
different but I thought that synchros were actually
differential transformers that either generate 3
phases (for a transmitter) or need 3 phases to drive
them (for a receiver). 

They evolved from Selsyns and Magslips and have
windings on both their stators and rotors.
 

=====
--
Ross

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