[simpits-tech] driving real instruments..

[Roy Coates]

On Sun, 17 Sep 2006, Gene Buckle wrote:

> > Ah, that means pulling em to bits to install motors. I want to drive them
> > 100% intact. Makes life more.... 'fun'.
> >
> You're not understanding Roy.  Real instruments are driven by 400Hz AC
> Synchro motors.  What Mike has designed is an apparently inexpensive
> method of driving a synchro from a digital signal.  Prior to now the
> only DS converters I've seen were in 18 pin DIP packages and cost $900
> *Each*.

Ooh... handy!  There's a guy in the UK building them, but boy is he
expensive!


> This means that you put one of these little doohickeys between your real
> instrument and your computer, add some wire magic and viola!  real
> instrument in the cockpit. :)

no room for a viola in my cockpit ;^)


> > Aw come on - I'll bet you've run things with odd heatsinks!  I've run
> > 7812's with the tab in the vice before now!
>
> Heheh.  That's pretty sad.

Yeah, well I usually bench-build before I look for a box to put it in!


--

Roy Coates.
Dept of Engineering.
Liverpool University.
E-Mail: r.coates at liv.ac.uk
Tel: 0151 794 4862
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Lord, If I must have an instrument failure, please let it be the Hobbs meter.
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