Re: [PSUBS-MAILIST] CO2 scrubbing measurement

["Jens Laland" <laland@artematrix.org>]

Alan

Here is a short summary on how I would like to build my prototype based on
the said document, and without any patent restrictions:

[1] A few thermistors, i.e. temperature sensitive resistors (25 cents
each), will provide a voltage drop that directly relates (non-linear) to
temperature.

[2] Then I would have to change out all the "threshold reference"
resistors (4 or 5 ?) in an already built circuit I have, ref the
NON-LINEAR one, visible to the left in the following video, ref

http://www.youtube.com/watch?v=Df5DEqrguyM

[3] Using a combination of GREEN, YELLOW, ORANGE, and RED colored diodes
in the 4 ea. LED Array, would then give you a fancy indication of CO 2
absorbency remains.

[4] Save valuable battery power by adding a push button (the type that
returns to OFF when released), and press it to get an instant reading.
No interpretive mathematical algorithms are required.

Best regards,
Jens Laland




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