ds2438 could be faster Alfille, Paul H.,M.D. escreveu: > This must be the most unusual use of 1-wire to date. > > I think the sprinklers have a lag, (it would make sense, a real fire doesn't > have fast transients) so the sensing might be fine. > > What will you do with the information. > > Also, the description from the link mentions fire performers, fireworks, etc. > The sprinkler must really have put a damper on the performance. > > Paul Alfille > > > -----Original Message----- > From: [EMAIL PROTECTED] on behalf of Peter Kropf > Sent: Sat 1/13/2007 3:12 AM > To: owfs-developers@lists.sourceforge.net > Subject: [Owfs-developers] Temperature Sensor Rate of Change > > Hi - > > I'm looking to monitor the heat generated by some pyrotechnics on > stage at a performance of Romeo & Juliet. There was a slight problem > on opening night where the fire sprinkler over center stage went off. > Too much heat generated from one of the fire effects. > > I was thinking of trying to use some DS18S20 sensors to monitor the > temperature above the various fire effects. The sensors would be > mounted to the ceiling above the various fire sources. The DS18S20 > looks to have a range that'll support our needs, -55°C to +125°C. > Since the sprinklers trigger at around +82°C that should work fine. > But I'm concerned about being able to monitor temperature changes fast > enough to provide accurate monitoring. The two aspects of that are how > fast / often can I realistically expect to read the temperatures on a > string of 5 to 7 sensors and how fast do the sensors themselves react > to changes in temperature. > > Any thoughts or comments would be appreciated. > > Thanks! > > - Peter > > P.S. For anyone interested who would be using fire to tell the story > of Romeo & Juliet, see http://thecrucible.org/ballet/index.html for > details. > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys - and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > Owfs-developers mailing list > Owfs-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/owfs-developers > > > > > > THE INFORMATION TRANSMITTED IN THIS ELECTRONIC COMMUNICATION IS INTENDED ONLY > FOR THE PERSON OR ENTITY TO WHOM IT IS ADDRESSED AND MAY CONTAIN CONFIDENTIAL > AND/OR PRIVILEGED MATERIAL. ANY REVIEW, RETRANSMISSION, DISSEMINATION OR > OTHER USE OF OR TAKING OF ANY ACTION IN RELIANCE UPON, THIS INFORMATION BY > PERSONS OR ENTITIES OTHER THAN THE INTENDED RECIPIENT IS PROHIBITED. IF YOU > RECEIVED THIS INFORMATION IN ERROR, PLEASE CONTACT THE SENDER AND THE PRIVACY > OFFICER, AND PROPERLY DISPOSE OF THIS INFORMATION. > > > > Esta mensagem foi verificada pelo E-mail Protegido Terra. > Scan engine: McAfee VirusScan / Atualizado em 12/01/2007 / Versão: 5.1.00/4938 > Proteja o seu e-mail Terra: http://mail.terra.com.br/ > > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys - and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > ------------------------------------------------------------------------ > > _______________________________________________ > Owfs-developers mailing list > Owfs-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/owfs-developers >
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