Hi Pete,
We use arduino microcontrollers for our gasifiers. You get low cost pressure transducers from Freescale semiconductors. They synch pretty well with the arduino hardware ( matching supply voltage and output range). They cost about $10 each and are very reliable and reasonably accurate if you take care of the electronics. You can easily get them on any online electronics store like digikey, mouser, etc. I believe Allpowerlabs also use similar transducers (atleast look the same) Regards Shivanand Ramachandran Infinite Energy Private Limited First Floor, Baba House 149-A, Kilokri New Delhi - 110014 Phone 011-65191937, 65273819 Fax : 011 - 26348472 On 26-04-2012, Pete & Sheri wrote: > Hello Stephen. > > The link you supplied to Dwyer was for a Switch, not a sensor. I didn't make myself clear. > > I am looking for a sensor in the range of minus 20 inches WC to plus 20 inches WC that will give me an electrical output in proportion to the pressure being sensed, so I can graph the quantity and use its magnitude to control the system. > > Sorry for my poor quality communication, > > Pete Stanaitis > > --------------- > > FROM: [email protected] [mailto:[email protected]] ON BEHALF OF [email protected] > SENT: Wednesday, April 25, 2012 2:18 PM > TO: [email protected] > SUBJECT: Re: [Gasification] Process controllers for gasifier/engine control and datalogging, Are there any Arduino users out there? > > Pete, > > Try this: > > http://www.sustainablesupply.com/Dwyer-Instruments-ADPS-06-2-N-Pressure-Switch-Dif-p/w228350.htm?gclid=COu_36jb0K8CFcfb4AodKQxUHA&CAWELAID=1307461896&cagpspn=pla [1] > > At least it will give you a digital threshold. I have had good luck with Dwyer stuff. > > Stephen Abbadessa > > -----Original Message----- > From: Pete & Sheri > To: Gasification > Sent: Wed, Apr 25, 2012 2:46 pm > Subject: [Gasification] Process controllers for gasifier/engine control and datalogging, Are there any Arduino users out there? > > I have been interested in Jim Mason (and company)'s approach to process control and datalogging using an Arduino based microcontroller since he first announced its existence. I have done a little googling about Arduino in general, and now I am sorta fascinated with it. I already have a fair amount of electronic hobby stuff around here, so I bought an Arduino ATMega2560 last week ($60) and am starting to get familiar with it. > > The reason for this post: > > Is anyone else out there using the Arduino as a process controller? > > And, has anyone found inexpensive low pressure sensors? I can't seem to find any in the +/- 20 inches WC range that are cheaper than about $40 in a 1 to 3 quantity. > > If you don't know what I am talking about, go to: > > http://wiki.gekgasifier.com/w/page/6123727/Gasifier-Control-Unit [4] > > (If I was a little farther along, I'd just buy one) > > and then go to: > > http://www.arduino.cc/ [5] > > A whole 'nother world!!! > > Pete Stanaitis > > ---------------- > > _______________________________________________ > > Gasification mailing list > > to Send a Message to the list, use the email address > > [email protected] [6] > > to UNSUBSCRIBE or Change your List Settings use the web page > > http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org [7] > > for more Gasifiers, News and Information see our web site: > > http://gasifiers.bioenergylists.org/ [8] Links: ------ [1] http://www.sustainablesupply.com/Dwyer-Instruments-ADPS-06-2-N-Pressure-Switch-Dif-p/w228350.htm?gclid=COu_36jb0K8CFcfb4AodKQxUHA|+|amp|+|CAWELAID=1307461896|+|amp|+|cagpspn=pla [2] mailto:[email protected] [3] mailto:[email protected] [4] http://wiki.gekgasifier.com/w/page/6123727/Gasifier-Control-Unit [5] http://www.arduino.cc/ [6] mailto:[email protected] [7] http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org [8] http://gasifiers.bioenergylists.org/
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