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Thread: Understanding Oxygen Sensors by Paul Raymaekers

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    Understanding Oxygen Sensors by Paul Raymaekers


    Understanding Oxygen Sensors
    by Paul Raymaekers
    The cell is in reality a current source, not a voltage source, that delivers a current that is relatively independent of the load applied to the sensor, that delivers a current that is almost perfectly proportional to the PPO2 applied to the sensor, but that is heavily influenced by temperature. So without controlling the temperature, or compensating the output for temperature changes, we can not use this sensor body for measuring PPO2 in a diving environment.

    Click on above image to read editorial

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    Re: Understanding Oxygen Sensors by Paul Raymaekers

    and on the rEvo you can win from the raffle: easy to install 5 sensors!

    3 on the Shearwater Predator controller, 2 on the redundant rEvodream!

    so, buy some more tickets
    www.rEvo-rebreathers.com
    ...."Yes you have to pre-breathe to activate the scrubber sorb, anyone who says different doesn't know what they are talking about!"...
    .... to get more accurate CO2 injection in the breathing machine we put 2 mass flow controllers in series ...
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    .... the earth is flat and ...

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    Re: Understanding Oxygen Sensors by Paul Raymaekers

    Good read thanks.

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    Re: Understanding Oxygen Sensors by Paul Raymaekers

    Best post on RBW ever!

    Well done Paul.

    Regards Nicolai
    who has been practising and advocating this from day one

    Edit: I'm buying ticksts - ofr nothing else then to support you guys. Though a shiny new rEvo-III would be sweet.

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    Re: Understanding Oxygen Sensors by Paul Raymaekers

    excellent. Thank you

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    Re: Understanding Oxygen Sensors by Paul Raymaekers

    Paul

    Thank you for extending the time and effort doing the study and presenting the results.

    John

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    Re: Understanding Oxygen Sensors by Paul Raymaekers

    Nice one Paul. Should be required reading for all CCR students.
    Cheers,

    Dave....

    www.wedivebc.com

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    Re: Understanding Oxygen Sensors by Paul Raymaekers

    Thanks Paul. A great read. ( Baz told me I had to read it!)

  9. #9
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    Re: Understanding Oxygen Sensors by Paul Raymaekers

    Excellent work Paul!

    Gill Envy

  10. #10
    RBW Member Tony_Q is a name known to all Tony_Q is a name known to all Tony_Q is a name known to all Tony_Q is a name known to all Tony_Q is a name known to all Tony_Q is a name known to all Tony_Q is a name known to all Tony_Q is a name known to all Tony_Q is a name known to all Tony_Q is a name known to all Tony_Q is a name known to all Tony_Q's Avatar
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    Re: Understanding Oxygen Sensors by Paul Raymaekers

    Hi Paul,

    Thanks for an excellent article.

    Though the recent change to AII diving sensor labelling see http://www.rebreatherworld.com/showthread.php?t=34883 effective 1st September 2010 (Remove cells from use no more than 16 months after date of manufacture) may cause some grief for users requiring CE certification to dive their units while seeking to follow your sensible cell replacement policy suggestions.

    Regards,
    Tony
    Last edited by Tony_Q; 27th October 2010 at 06:02. Reason: Fix grammar

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