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gas sensing circuit help!!!!

hi~ i'm doing one of my fourth year course projects in EE, i need to design a transducer that can measure the CO2 level in the ocean, and it

needs to be from raw matrials, but the main problem now is that i cannot even find the gas detector or CO2 detector in the first place, all the things i can find on the web is already packaged, can someone help me to identify the sensor or detector for me? it must be a raw material~ thanks alot!! ps.. need to hand the project in in two weeks time....please help!!

Reply to
ed_keropi
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Keywords: optical sensors, absorption, optoelectronic microsystem, carbon dioxide

martin

Reply to
martin griffith

How "raw" do you want ? Would a few rocks do ? :-)

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Regards,

Adrian Jansen           adrianjansen at internode dot on dot net
Design Engineer         J & K Micro Systems
Microcomputer solutions for industrial control
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Adrian Jansen

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