X-Virus-Scanned: clean according to Sophos on Logan.com
Return-Path: <rwstracy@gmail.com>
Received: from qw-out-2122.google.com ([74.125.92.25] verified)
  by logan.com (CommuniGate Pro SMTP 5.2.12)
  with ESMTP id 3488747 for flyrotary@lancaironline.net; Wed, 11 Feb 2009 18:13:09 -0500
Received-SPF: pass
 receiver=logan.com; client-ip=74.125.92.25; envelope-from=rwstracy@gmail.com
Received: by qw-out-2122.google.com with SMTP id 8so128557qwh.25
        for <flyrotary@lancaironline.net>; Wed, 11 Feb 2009 15:12:35 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=gamma;
        h=domainkey-signature:mime-version:sender:received:in-reply-to
         :references:date:x-google-sender-auth:message-id:subject:from:to
         :content-type;
        bh=gbRAEma2sdAAQnue2wN1aLb2QL32m63MCn5BEEjofxE=;
        b=nyo1hjcsqET5w4U604afZB+ed/rT9wDFCVJ2Ms9FyNHsh443qkdFYNbchazzcBIpzS
         Md/78Z2/0v0+xSYSjvbe6W9WoGOdH7GeUS6+596nId5eVQCdGMXgv9P7LWrz0csFurJ9
         QoqD1h5y3Yg2KpayPHHC3KKttUfnMGkAY/TgU=
DomainKey-Signature: a=rsa-sha1; c=nofws;
        d=gmail.com; s=gamma;
        h=mime-version:sender:in-reply-to:references:date
         :x-google-sender-auth:message-id:subject:from:to:content-type;
        b=bK9iIslN1yrAE9I94cC76pbXXDQCJnL7f1I8gYfjUR9auv432kGwTNAnLEIAkE1qcW
         UllBngBH4ofQ99GAOu3G837VZBER8sZZWYVRBv7O8knVQ2eFf+k1HPpE9U0uic2HCi8o
         j01n+rUBF1oPGQULxQf2pIyeWwLD2YV5dWR2k=
MIME-Version: 1.0
Sender: rwstracy@gmail.com
Received: by 10.224.15.14 with SMTP id i14mr77411qaa.13.1234393955124; Wed, 11 
	Feb 2009 15:12:35 -0800 (PST)
In-Reply-To: <list-3488712@logan.com>
References: <list-3488712@logan.com>
Date: Wed, 11 Feb 2009 18:12:35 -0500
X-Google-Sender-Auth: e438d89ef3f8ba7c
Message-ID: <1b4b137c0902111512l6da45cd0k3295bb8400feeb2e@mail.gmail.com>
Subject: Re: [FlyRotary] EM3 Shameless promotion
From: Tracy Crook <tracy@rotaryaviation.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Content-Type: multipart/alternative; boundary=0015175cdc143548130462acbd02

--0015175cdc143548130462acbd02
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit

That came up in an earlier topic.  I had decided to have a second TAS
readout option so you could put a static probe (sponge covered tube, etc) in
front / behind various heat exchangers so you could see the relative
pressure recovery.  I'll just use the same sensor as the main TAS pressure
sensor.

You can convert the mph reading back into pressure if that was needed.

Tracy

On Wed, Feb 11, 2009 at 5:45 PM, Monty Roberts <montyr2157@alltel.net>wrote:

>  Tracy,
>
> I was mostly thinking about air pressures. Like plenum, after radiator etc.
> I'm not sure what the best type of transducer would be, but my guess is the
> MAP sensors are the least expensive way to go. Most of the lab grade
> transducers with a pedigree are just ridiculously overpriced. If they work
> with 0-5 that would be perfect.
>
> Unless you know of something better in which case, I'm all ears. ;-)
>
> Monty
>
>
> Hi Monty,
>    What kind of pressure are you thinking of?  Air, liquid, what pressure
> range, etc?  I could have some gen purpose  0 - 5 volt inputs that can be
> calibrated to whatever units you wanted.  You would have to use a sensor
> that put out voltage in this range though.
>
> Tracy
>

--0015175cdc143548130462acbd02
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

That came up in an earlier topic.&nbsp; I had decided to have a second TAS =
readout option so you could put a static probe (sponge covered tube, etc) i=
n front / behind various heat exchangers so you could see the relative pres=
sure recovery.&nbsp; I&#39;ll just use the same sensor as the main TAS pres=
sure sensor.&nbsp; <br>
<br>You can convert the mph reading back into pressure if that was needed.<=
br><br>Tracy<br><br><div class=3D"gmail_quote">On Wed, Feb 11, 2009 at 5:45=
 PM, Monty Roberts <span dir=3D"ltr">&lt;<a href=3D"mailto:montyr2157@allte=
l.net">montyr2157@alltel.net</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"border-left: 1px solid rgb(204, =
204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">





<div bgcolor=3D"#ffffff">
<div><font size=3D"2" face=3D"Arial">Tracy,</font></div>
<div><font size=3D"2" face=3D"Arial"></font>&nbsp;</div>
<div><font size=3D"2" face=3D"Arial">I was mostly thinking about air pressu=
res. Like=20
plenum, after radiator etc. I&#39;m not sure what the best type of transduc=
er would=20
be, but my guess is the MAP sensors are the least expensive way to go. Most=
 of=20
the lab grade transducers with a pedigree are just ridiculously overpriced.=
 If=20
they work with 0-5 that would be perfect. </font></div>
<div><font size=3D"2" face=3D"Arial"></font>&nbsp;</div>
<div><font size=3D"2" face=3D"Arial">Unless you know of something better in=
 which case,=20
I&#39;m all ears. ;-)&nbsp;</font></div>
<div><font size=3D"2" face=3D"Arial"></font>&nbsp;</div>
<div><font size=3D"2" face=3D"Arial">Monty</font></div>
<div><font size=3D"2" face=3D"Arial"><font size=3D"2" face=3D"Arial"></font=
></font>&nbsp;</div>
<div><font size=3D"2" face=3D"Arial"><font size=3D"2" face=3D"Arial"></font=
></font>&nbsp;</div>
<div><font size=3D"2" face=3D"Arial"><font size=3D"3" face=3D"Times New Rom=
an">Hi=20
Monty,<br>&nbsp;&nbsp; What kind of pressure are you thinking of?&nbsp; Air=
,=20
liquid, what pressure range, etc?&nbsp; I could have some gen purpose&nbsp;=
 0 -=20
5 volt inputs that can be calibrated to whatever units you wanted.&nbsp; Yo=
u=20
would have to use a sensor that put out voltage in this range=20
though.<br><br>Tracy</font><br></font></div></div>
</blockquote></div><br>

--0015175cdc143548130462acbd02--