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Thanks Mark, but that's the input signal to the computer. I was asking
about the output signal that fires the coil. I think Richard has
confirmed what I thought the amplitude was. The pulse width won't
matter too much since the tach has an internal one shot that drive the
meter.
Bob W.
On Thu, 2 Oct 2008 19:45:51 -0500
"Mark Steitle" <msteitle@gmail.com> wrote:
> Bob,
>
> The Renesis repair manual shows a picture of the signal in the CAS section.
> It looks like a stretched out spring with two of coils stretched more than
> the rest, followed by more short sections and finally another stretched
> section of one coil. There are 13 narrow coils followed by two stretched
> coils, then 12 narrow coils followed by one stretched section, then three
> narrow coils. Below is my lame attempt to illustrate what it should look
> like.
>
> /\/\/\/\/\/\/\/\/\/\/\/\/\J\J\/\/\/\/\/\/\/\/\/\/\/\/\J\/\/\/\
>
> You really ought to get hold of a Renesis shop manual.
>
> Mark S.
>
>
> On Thu, Oct 2, 2008 at 7:23 PM, Richard Sohn <res12@fairpoint.net> wrote:
>
> > Bob,
> >
> > the coil trigger signal is supposed to be a square pulse of 5V amplitude
> > and 2ms duration. I used this on the single rotor at one time, and it worked
> > great.
> > FWIW.
> >
> > Richard Sohn
> > N2071U
> >
> > ----- Original Message ----- From: "Bob White" <bob@bob-white.com>
> > To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
> > Sent: Thursday, October 02, 2008 3:39 PM
> > Subject: [FlyRotary] Coil trigger signal
> >
> >
> > Tracy is on vacation for a while and I need to find out what the coil
> >> trigger pulse signal looks like. Anyone know?
> >>
> >> This is in reference to recalibrating John Downing's tachometer. I
> >> will publish what I've done as soon as I have it working.
> >>
> >> Bob W.
> >>
> >> --
> >> N93BD - Rotary Powered BD-4 - http://www.bob-white.com
> >> 3.8 Hours Total Time and holding
> >> Cables for your rotary installation - http://roblinstores.com/cables/
> >>
> >> --
> >> Homepage: http://www.flyrotary.com/
> >> Archive and UnSub:
> >> http://mail.lancaironline.net:81/lists/flyrotary/List.html
> >>
> >
> >
> >
> > --------------------------------------------------------------------------------
> >
> >
> >
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> > 7:46 AM
> >
> >
> > --
> > Homepage: http://www.flyrotary.com/
> > Archive and UnSub:
> > http://mail.lancaironline.net:81/lists/flyrotary/List.html
> >
>
--
N93BD - Rotary Powered BD-4 - http://www.bob-white.com
3.8 Hours Total Time and holding
Cables for your rotary installation - http://roblinstores.com/cables/
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