Hi all!
I need a sensor control level rice husk in the reactor .if you know methol usefull or sensor control level, you can help me. I am working a gasifier rice husk type updraft,feed air lock. Thanks! Cuong.pq 2012/4/27 SHIVANAND Ramachandran <[email protected]> > ** > > > > Pete, > > > > We use MPXV7002 & MPXV5004, whose DP span is lesser ( but sufficient for > our gasifiers) but the the output voltage span is more. Which is > important, considering that the least count when measured using Arduino > is around 5 mV (5 V/1024). > > So, if you use MPXV12 , which has an output span of 60 mV for a dP of 1020 > mmWC, you will effectively get a least count of (1020/ (60/5))= 85 mmWC, > which is of little use, unless you amplify the output of the transducer. > > Regards > > > > > Shivanand Ramachandran > > > Infinite Energy (P) Ltd > > New Delhi > > On 26-04-2012, Pete & Sheri wrote: > > > > Thank you, Shivanand. > > I have found the 10 Kpa range sensors. The MPX12DP, case 344. Is that > what you use? > > Is there a better choice? > > > > Pete Stanaitis > > ---------------- > > > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *SHIVANAND > Ramachandran > *Sent:* Thursday, April 26, 2012 3:33 AM > *To:* [email protected] > *Subject:* Re: [Gasification] Low Pressure sensors > > > > 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]<[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 > > > > At least it will give you a digital threshold. I have had good luck with > Dwyer stuff. > > > > Stephen Abbadessa > > -----Original Message----- > From: Pete & Sheri <[email protected]> > To: Gasification <[email protected]> > 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 > > (If I was a little farther along, I’d just buy one) > > > > and then go to: > > > > http://www.arduino.cc/ > > > > A whole ‘nother world!!! > > > > Pete Stanaitis > > ---------------- > > _______________________________________________ > > Gasification mailing list > > > > to Send a Message to the list, use the email address > > [email protected] > > > > to UNSUBSCRIBE or Change your List Settings use the web page > > http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org > > > > for more Gasifiers, News and Information see our web site: > > http://gasifiers.bioenergylists.org/ > > > _______________________________________________ > Gasification mailing list > > to Send a Message to the list, use the email address > [email protected] > > to UNSUBSCRIBE or Change your List Settings use the web page > > http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org > > for more Gasifiers, News and Information see our web site: > http://gasifiers.bioenergylists.org/ > >
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