Return-Path: Received: from [24.25.9.102] (HELO ms-smtp-03-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 2971483 for flyrotary@lancaironline.net; Mon, 02 Feb 2004 16:56:55 -0500 Received: from edward (clt78-020.carolina.rr.com [24.93.78.20]) by ms-smtp-03-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id i12Luh5X013558 for ; Mon, 2 Feb 2004 16:56:46 -0500 (EST) Message-ID: <002a01c3e9d7$72bdaee0$2402a8c0@edward> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Linear Position Transducer? Date: Mon, 2 Feb 2004 16:56:43 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0027_01C3E9AD.894CC670" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0027_01C3E9AD.894CC670 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Great Mark, I had forgotten about the wire wound tapped resistors. That just = might work. Thanks Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC ----- Original Message -----=20 From: Mark Steitle=20 To: Rotary motors in aircraft=20 Sent: Monday, February 02, 2004 3:13 PM Subject: [FlyRotary] Re: Linear Position Transducer? Ed, Could you use something like this... = http://mpja.com/productview.asp?product=3D14579+RS Mark S. At 01:36 PM 2/2/2004 -0500, you wrote: Hi Guys,=20 =20 I am finishing up the design and fabrication of my variable = length EDDIE intake and need some assistance. I want to use a voltmeter = (or LEDs) to indicate the postion of the manifold. The simplist = approach would appear to have a linear resistor attached such that its = arm is moved as the manifold moves thereby changing the resistance = indicating distance. =20 =20 I've done a lot of Web surfing and found a number of linear postion = potentiometers. The problem is they cost more than I have invested in = the manifold. Regular audio linear potentiometers do not have the = mechanical range I need. I need a position indictor that has at least 5 = 1/2 - 6" of travel. Anyone have any ideal where something reasonably = priced might be found. =20 =20 If you know of a retail catalog that have such things I'd = appreciate a pointer. I can find plenty of Linear Postion = Potentiometers - but they cost in the hunderds of $$. Need something = much cheaper. =20 =20 I know I could devise a 3:1 lever ratio or some such thing and use = one of the cheap (but mechanically range restricted) linear = potentiometers for audio circuits, but would rather not. =20 Thanks =20 =20 Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC ------=_NextPart_000_0027_01C3E9AD.894CC670 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Great Mark,

I had forgotten = about the wire=20 wound tapped resistors. That just might work.

Thanks

Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC

----- Original Message -----
From:=20 Mark=20 Steitle
To: Rotary motors in = aircraft

Sent: Monday, February 02, 2004 = 3:13=20 PM

Subject: [FlyRotary] Re: Linear = Position=20 Transducer?

Ed,
Could you use something like this... http://mpja.com/productview.asp?product=3D14579+RS=

Mark=20 S.

At 01:36 PM 2/2/2004 -0500, you wrote:

Hi Guys,=20

= I am=20 finishing up the design and fabrication of my variable length EDDIE = intake=20 and need some assistance. I want to use a voltmeter (or LEDs) = to=20 indicate the postion of the manifold. The simplist approach = would=20 appear to have a linear resistor attached such that its arm is moved = as the=20 manifold moves thereby changing the resistance indicating = distance. =20

I've done a lot of = Web surfing=20 and found a number of linear postion potentiometers. The = problem is=20 they cost more than I have invested in the manifold. Regular = audio=20 linear potentiometers do not have the mechanical range I need. = I need=20 a position indictor that has at least 5 1/2 - 6" of travel. = Anyone=20 have any ideal where something reasonably priced might be = found. =20

If you know = of a retail=20 catalog that have such things I'd appreciate a pointer. I can = find=20 plenty of Linear Postion Potentiometers - but they cost in the = hunderds of=20 $$. Need something much cheaper. =

I know I could devise a 3:1 lever ratio or = some such thing=20 and use one of the cheap (but mechanically range restricted) linear=20 potentiometers for audio circuits, but would rather=20 not.

Thanks

Ed=20 Anderson
RV-6A N494BW Rotary Powered
Matthews,=20 NC

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