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Electronics => Beginners => Topic started by: Swake on September 10, 2014, 12:34:51 pm

Title: air pressure sensor
Post by: Swake on September 10, 2014, 12:34:51 pm
Looking for a cheap and easy to implement pneumatic pressure sensor to fit on an large air compressor.
Measurement range of approximately 2 to 10bar (+ - 150psi) and capable of supporting at least 12 to 14 bar (+/- 175 to 210psi) without exploding.
Digital or analog output, it doesn't matter as it will be connected to an arduino or similar.

Anyone tips for a good sensor?
Title: Re: air pressure sensor
Post by: Swake on September 11, 2014, 01:56:27 pm
Really no advice for this?
I hope not being the first on earth doing something like this :-)
Title: Re: air pressure sensor
Post by: Richard Crowley on September 11, 2014, 02:15:11 pm
I see automotive transducers on eBay for around $25.  For eample...
http://www.ebay.com/itm/Pressure-transducer-or-sender-150-psi-stainless-steel-for-oil-fuel-air-water-/251362960044 (http://www.ebay.com/itm/Pressure-transducer-or-sender-150-psi-stainless-steel-for-oil-fuel-air-water-/251362960044)
Title: Re: air pressure sensor
Post by: Kjelt on September 11, 2014, 02:48:29 pm
Festo has some:
http://www.festo.com/cms/nl-be_be/9711.htm (http://www.festo.com/cms/nl-be_be/9711.htm)
Title: Re: air pressure sensor
Post by: jlmoon on September 11, 2014, 09:29:19 pm
How about :
http://noel.feld.cvut.cz/hw/motorola/books/sg73/pdf/5_9sensor_msg.pdf (http://noel.feld.cvut.cz/hw/motorola/books/sg73/pdf/5_9sensor_msg.pdf)

MPX5999D comes to mind, but 150p.s.i. max, span of 4.5V



Title: Re: air pressure sensor
Post by: Swake on September 12, 2014, 08:10:05 am
YES! Thank you :-)

'Pressure transducer' is the right name. With this information it is much easier to find the right component of course.

An automotive version it will be. As in the link of Richard. Best solution because easy to fit on the existing tubing. I will choose for an 200psi version. Gives some more headroom for over-pressure.