X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 1 [X] Return-Path: Received: from [24.51.79.189] (account marv@lancaironline.net) by logan.com (CommuniGate Pro WEBUSER 5.1.5) with HTTP id 1791059 for lml@lancaironline.net; Thu, 25 Jan 2007 23:45:17 -0500 From: "Marvin Kaye" Subject: Re: [LML] Re: Lancair 320 Fire To: lml X-Mailer: CommuniGate Pro WebUser v5.1.5 Date: Thu, 25 Jan 2007 23:45:17 -0500 Message-ID: In-Reply-To: <5B59870CA143DD408BD6279374B74C8B0412DBF4@MAIL02.austin.utexas.edu> References: <5B59870CA143DD408BD6279374B74C8B0412DBF4@MAIL02.austin.utexas.edu> MIME-Version: 1.0 Content-Type: text/plain;charset="iso-8859-1";format="flowed" Content-Transfer-Encoding: 8bit Posted for "Steitle, Mark R" : I used a UVtron based fire detector designed by the robotics guys to help robots find fires in burning buildings. I mounted it in a small project box and wired it to a big red light on my panel. It only detects actual fire (flames), not light. So, it won't trigger based on glowing exhaust headers, sunlight, etc. Attached is a picture of the unit with the box open. The heart of the unit is the UVtron bulb, which is the clear bulb you can see mounted on the circuit board & standing upright within the box. The "warning light" is the small LED lying on top of the box. I ended up using a much larger LED than what is shown here. You can assemble what you see in the picture for about $150. Hopefully, I'll never have to find out how well it works. Mark S. LNCE 208TX http://www.weslick.com/images/Mid-Winter%20Rotor-Fest%2006/target9.html