X-Virus-Scanned: clean according to Sophos on Logan.com X-PolluStop-Diagnostic: (direct reply)\eX-PolluStop-Score: 0.00\eX-PolluStop: Scanned with Niversoft PolluStop 2.1 RC1, http://www.niversoft.com/pollustop Return-Path: Received: from [65.54.168.109] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.3c4) with ESMTP id 860450 for flyrotary@lancaironline.net; Thu, 07 Apr 2005 11:52:29 -0400 Received-SPF: pass receiver=logan.com; client-ip=65.54.168.109; envelope-from=lors01@msn.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 7 Apr 2005 08:51:42 -0700 Message-ID: Received: from 4.174.5.48 by BAY3-DAV5.phx.gbl with DAV; Thu, 07 Apr 2005 15:51:42 +0000 X-Originating-IP: [4.174.5.48] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Timing Date: Thu, 7 Apr 2005 11:51:39 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0046_01C53B68.28FBB7F0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MIMEOLE: Produced By MSN MimeOLE V9.10.0011.1703 Seal-Send-Time: Thu, 7 Apr 2005 11:51:40 -0400 X-OriginalArrivalTime: 07 Apr 2005 15:51:42.0749 (UTC) FILETIME=[B1AE84D0:01C53B89] This is a multi-part message in MIME format. ------=_NextPart_000_0046_01C53B68.28FBB7F0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Yes, the wheel MUST be a ferrous magnetic material (not magnetized, but = magnetic, I,e, a magnet must stick to the material). Tracy In a message dated 4/6/2005 7:54:16 PM Pacific Standard Time, = lors01@msn.com writes: The RX-8 sensor is magnetic reluctance. Same type, size & shape as = the 3rd gen. In fact if you have a 3rd gen sensor, you can use it if = you can mount it correctly. The Subaru sensors will also work but they = are poor quality (many failures reported) so don't go there. Tracy, I hope you know the answer to this question. Does the = reluctance type sensor need a magnetic wheel to work? If the sensor has = the magnet and a coil of wire might the pulse be made by any = electrically conductive material? I am not an EE, rather a ME so I may = be showing my "little bit of knowledge" but if I remember the theory you = should just need a conductor to "cut" the line of magnetic flux. The use = of a aluminum tooth wheel wouldn't save much weight but it would be nice = to not have to paint it to prevent rust! Bill Jepson ------=_NextPart_000_0046_01C53B68.28FBB7F0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Yes, the wheel MUST be a ferrous magnetic material (not magnetized, = but=20 magnetic, I,e,  a magnet must stick to the material).
 
Tracy

In a message dated 4/6/2005 7:54:16 PM Pacific Standard Time, lors01@msn.com=20 writes:
The=20 RX-8 sensor is magnetic reluctance.  Same type, size & = shape as the=20 3rd gen.  In fact if you have a 3rd gen sensor, you can use it = if you=20 can mount it correctly.  The Subaru sensors will also work but = they are=20 poor quality (many failures reported) so don't go=20 there.
Tracy, I hope you know the answer to this question. Does the = reluctance=20 type sensor need a magnetic wheel to work? If the sensor has the = magnet and a=20 coil of wire might the pulse be made by any electrically conductive = material?=20 I am not an EE, rather a ME so I may be showing my "little bit of = knowledge"=20 but if I remember the theory you should just need a conductor to "cut" = the=20 line of magnetic flux. The use of a aluminum tooth wheel wouldn't save = much=20 weight but it would be nice to not have to paint it to prevent = rust!
Bill Jepson
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