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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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>
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> --
> Homepage: http://www.flyrotary.com/
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>
--
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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