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Author Topic: Air flow sensor  (Read 5485 times)
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Hello, everyone.

I would like to know, when I breath in with some air flow sensor. The idea is simple, for now, I put sensor near my lips and breath in, sensor should sense my breathing and send so data to Arduino.

I would like to know, does anybody know anything about using air flow sensors? If so, I would like to know more information (URL, circuits, etc.) about air flow sensors compatible with Arduino controller.

Thank you in advance.

Best regards,
Simas
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It could be something like breathing sensor.
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Rapa Nui
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Looong time back I saw a system which had 2 sensors - tiny thermistors - placed in a pipe, few inches from each other. When the medium (gas, liquid) flown through the pipe the temperature fluctuations were  measured by both thermistors and a computer calculated a correlation of the both signals. A proper math may give you the speed of the medium as the output. A nice weekend project.. smiley
« Last Edit: February 03, 2013, 09:02:25 pm by pito » Logged

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Thanks for your advice, but I need more information, how to do this, some useful URL or pdf for doing this.
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http://arduino.cc/forum/index.php?topic=103044.0
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Dubuque, Iowa, USA
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Try http://shop.moderndevice.com/products/wind-sensor for a thermal example.

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Thanks for all your advices, but I need some sensor that would sense when I breath in and breath out.
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Sorry, I hadnt watched all URLs you posted, guys. I found one, that does fit for me. Thank you all!
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so could u post what u are looking at then please.

some one else might gain from the info
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Here's the URL http://arduino.cc/forum/index.php?topic=66695.0
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