[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
Re: [Owfs-developers] Temperature Sensor Rate of Change
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. <>- 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
Re: [Owfs-developers] Temperature Sensor Rate of Change
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 > - 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
Re: [Owfs-developers] Temperature Sensor Rate of Change
On 1/13/07, Alfille, Paul H.,M.D. <[EMAIL PROTECTED]> wrote: > This must be the most unusual use of 1-wire to date. I'm not sure yet if we're going to use them. I'll know more later this afternoon. > 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. We'd be using it to see how the temperature at the ceiling changes during the performance based on the flame effect intensity. The idea would be to see how far we can push things before we get to the point of having the sprinkler trigger again. > Also, the description from the link mentions fire performers, fireworks, etc. > The sprinkler must really have put a damper on the performance. The lighting effect of the water mist from the sprinkler being backlit by a blue light was spectacular. Most of the audience and a bunch of the crew didn't realize that this wasn't planned until we realized that it was the sprinkler that went off and that there was no water feature in the performance! A bit of pandemonium ensued while we worked to get things under control and cleaned up. But the audience was great and supportive, most stayed to see the rest of the show. Here's a review from the San Francisco Chronicle: http://sfgate.com/cgi-bin/article.cgi?f=/c/a/2007/01/12/DDGFUNGKMP1.DTL - Peter > 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. > > > > - > 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 > > > - 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
Re: [Owfs-developers] Temperature Sensor Rate of Change
I'm hoping to use the DS18S20's since I've got a bunch of them here in my studio. I'll need to play around with them this morning to see how they react to temperature changes... - Peter On 1/13/07, Roberto Spadim <[EMAIL PROTECTED]> wrote: > 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 > > > > > - > 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 > - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you
Re: [Owfs-developers] Temperature Sensor Rate of Change
As of how fast such a sensor can react, I tested today a DS18B20 dropping into a cup of just boiled water. Temperature got from room temp. to stable 90C in 10 seconds: : 23 16:19:40 23 16:19:42 23 16:19:43 47 16:19:46 69 16:19:47 80 16:19:48 83 16:19:50 86 16:19:51 88 16:19:52 89 16:19:53 90 16:19:55 90 16:19:56 90 16:19:57 : DS28B20's head was half covered with a heat shrinkable tube, to protect it's pins. I have attached an .xls with logged data and graphs I have used them in a laboratory a/c monitoring and i have experienced ripples when a/c starts 'correcting' room temperature. at http://ikaros.dmst.aueb.gr/logs/labs.html, you can see for ELOI2 the ripples (click the 'last24h' image) A/C is at the ceiling (about 4m high), sensor is near the wall, behind an office, under the A/C, half a meter above flour. In the same room, there is a rack, and i have placed a sensor at it's internal side, placed near the top server. Notice again the ripples at http://ikaros.dmst.aueb.gr/logs/racks.html. ELOI3's rack is in a 4mx3m room. >> 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. Peter Kropf wrote on 13/1/2007 20:17: I'm hoping to use the DS18S20's since I've got a bunch of them here in my studio. I'll need to play around with them this morning to see how they react to temperature changes... - Peter begin:vcard fn:George M. Zouganelis n:Zouganelis;George org:Athens University of Economics and Business;Department of Management Science & Technology adr:;;76, Patission Ave.;Athens;Attica;;Greece email;internet:gzoug(at)aueb(dot) gr title:Technical Administrator x-mozilla-html:FALSE version:2.1 end:vcard - 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
Re: [Owfs-developers] Temperature Sensor Rate of Change
George - This is great. Thanks for posting it! - Peter On 1/13/07, George M. Zouganelis <[EMAIL PROTECTED]> wrote: > As of how fast such a sensor can react, I tested today a DS18B20 dropping > into a cup > of just boiled water. Temperature got from room temp. to stable 90C in 10 > seconds: > : > 23 16:19:40 > 23 16:19:42 > 23 16:19:43 > 47 16:19:46 > 69 16:19:47 > 80 16:19:48 > 83 16:19:50 > 86 16:19:51 > 88 16:19:52 > 89 16:19:53 > 90 16:19:55 > 90 16:19:56 > 90 16:19:57 > : > DS28B20's head was half covered with a heat shrinkable tube, to protect it's > pins. > I have attached an .xls with logged data and graphs > > > I have used them in a laboratory a/c monitoring and i have experienced > ripples when a/c starts > 'correcting' room temperature. > > at http://ikaros.dmst.aueb.gr/logs/labs.html, you can see for ELOI2 the > ripples (click the 'last24h' image) > > A/C is at the ceiling (about 4m high), sensor is near the wall, > behind an office, under the A/C, half a meter above flour. > > In the same room, there is a rack, and i have placed a sensor at it's > internal side, placed near the top server. > Notice again the ripples at http://ikaros.dmst.aueb.gr/logs/racks.html. > > ELOI3's rack is in a 4mx3m room. > > > > > >> 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. > > > Peter Kropf wrote on 13/1/2007 20:17: > > I'm hoping to use the DS18S20's since I've got a bunch of them here in > > my studio. I'll need to play around with them this morning to see how > > they react to temperature changes... > > > > - Peter > > > > > > - > 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 > > > > - 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
