X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.120] verified) by logan.com (CommuniGate Pro SMTP 5.4.2) with ESMTP id 5215092 for flyrotary@lancaironline.net; Sat, 26 Nov 2011 09:46:07 -0500 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.120; envelope-from=eanderson@carolina.rr.com Return-Path: X-Authority-Analysis: v=2.0 cv=a9WyBDuF c=1 sm=0 a=SC71y0a/4S6V9vjVxUojGA==:17 a=wiRe06fdPN4A:10 a=zL3L39W7AAAA:8 a=arxwEM4EAAAA:8 a=r1ClD_H3AAAA:8 a=qV0mfD4mAAAA:8 a=OBoQRNBVAAAA:8 a=cAMK2n2ch-AiaxiSGOkA:9 a=fv7pZF4QEpucBn7vJN8A:7 a=wPNLvfGTeEIA:10 a=i5GXiMqnLg0A:10 a=oton5SfPnc8A:10 a=ao4RW71Vw8YA:10 a=cKQkoQDA9Z1QhYQc:21 a=eAvjVzEDm4mzfgnF:21 a=pedpZTtsAAAA:8 a=Ia-xEzejAAAA:8 a=CjxXgO3LAAAA:8 a=WYdKnaXWLrbiVPeyZtQA:9 a=us7MihzsbPByPEm-L1gA:7 a=eJojReuL3h0A:10 a=EzXvWhQp4_cA:10 a=SC71y0a/4S6V9vjVxUojGA==:117 X-Cloudmark-Score: 0 X-Originating-IP: 174.110.175.135 Received: from [174.110.175.135] ([174.110.175.135:64064] helo=EdPC) by cdptpa-oedge03.mail.rr.com (envelope-from ) (ecelerity 2.2.3.46 r()) with ESMTP id AF/C8-04465-B8BF0DE4; Sat, 26 Nov 2011 14:45:31 +0000 Message-ID: <2B34C2D157D3470A8CC038BE0DB7BD6B@EdPC> From: "Ed Anderson" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] wide-band o2 sensor DIY project Date: Sat, 26 Nov 2011 09:45:13 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0010_01CCAC20.183FB120" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 This is a multi-part message in MIME format. ------=_NextPart_000_0010_01CCAC20.183FB120 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Charlie, I looked into adapting my EFISM to use a wide band O2 sensor, I = though it would be simple - just a different (more linear) O2 sensor = voltage output range - however, the problem is the control circuit = required to maintain the precise sensor temperature (needed for any = accuracy) is more complex than that required to simply read the sensor = signal. In fact, from what I have read if you do not control the heater = temperature precisely - not only does accuracy suffer but the life of = the sensor is also shortened. Bosch does have a control chip - but its = almost as large as my circuit board and not cheap. =20 There are a number of DIY wide band units that are available. My = favorite is located here: http://techedge.com.au/ Ed Edward L. Anderson Anderson Electronic Enterprises LLC 305 Reefton Road Weddington, NC 28104 http://www.andersonee.com http://www.eicommander.com From: Charlie England=20 Sent: Saturday, November 26, 2011 9:26 AM To: Rotary motors in aircraft=20 Subject: [FlyRotary] wide-band o2 sensor DIY project You can find interesting stuff in the most unexpected places.... -------- Original Message -------- Subject: [Small4-strokeEngines] = wide-band o2 sensor DIY project=20 Date: Sat, 26 Nov 2011 10:01:51 -0000=20 From: =20 =20 Reply-To: Small4-strokeEngines@yahoogroups.com=20 To: Small4-strokeEngines@yahoogroups.com=20 =20 I know nothing about these folks except what I just read on their web = site. They offer plans to build a wideband O2 sensor display thingee. = Dunno tital cost of project. This is a commercial sevice, they charge = for the complete write-up. Think they may offer ready-made PCBs for each = project too, not sure. http://www.siliconchip.com.au/cms/A_111598/article.html Thanks, Steve! GeoB =20 __,_._,___ ------=_NextPart_000_0010_01CCAC20.183FB120 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Charlie, I looked into adapting my EFISM to = use a=20 wide band O2 sensor, I though it would be simple - just a different = (more=20 linear) O2 sensor voltage output range - however, the problem is the = control=20 circuit required to maintain the precise sensor temperature (needed for = any=20 accuracy) is more complex than that required to simply read the sensor=20 signal.  In fact, from what I have read if you do not control = the=20 heater temperature precisely - not only does accuracy suffer but the = life of the=20 sensor is also shortened.  Bosch does have a control chip - but its = almost=20 as large as my circuit board and not cheap. 
 
There are a number of DIY wide band units that = are=20 available.  My favorite is located here:
 
http://techedge.com.au/
=
 
 
 
Ed
 
Edward L. Anderson
Anderson Electronic = Enterprises=20 LLC
305 Reefton Road
Weddington, NC 28104
http://www.andersonee.com
http://www.eicommander.com

Sent: Saturday, November 26, 2011 9:26 AM
To: Rotary motors in = aircraft
Subject: [FlyRotary] wide-band o2 sensor DIY=20 project

You can find interesting stuff in the most unexpected=20 places....

-------- Original Message --------=20
Subject: [Small4-strokeEngines] wide-band o2 sensor DIY project
Date: Sat, 26 Nov 2011 10:01:51 -0000
From:
Reply-To: Small4-strokeEngines= @yahoogroups.com
To: Small4-strokeEngines= @yahoogroups.com


  =

I know nothing about these folks except what I just read on their web = site.=20 They offer plans to build a wideband O2 sensor display thingee. Dunno = tital cost=20 of project. This is a commercial sevice, they charge for the complete = write-up.=20 Think they may offer ready-made PCBs for each project too, not = sure.

http://www.siliconchip.com.au/cms/A_111598/artic= le.html

Thanks,=20 Steve!

GeoB


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