[Gasification] Low Pressure sensors

[SHIVANAND Ramachandran]

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:
gasification-bounces at lists.bioenergylists.org
[mailto:gasification-bounces at lists.bioenergylists.org] ON BEHALF OF
sabbadess at aol.com
> SENT: Wednesday, April 25, 2012 2:18 PM
> TO:
gasification at lists.bioenergylists.org
> 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 
> 
> ---------------- 
> 
>
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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:spaco at baldwin-telecom.net
[3]
mailto:Gasification at bioenergylists.org
[4]
http://wiki.gekgasifier.com/w/page/6123727/Gasifier-Control-Unit
[5]
http://www.arduino.cc/
[6] mailto:Gasification at bioenergylists.org
[7]
http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org
[8]
http://gasifiers.bioenergylists.org/
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