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Water-conductivity CO2 sensor

  • US 20060175208A1
  • Filed: 02/09/2005
  • Published: 08/10/2006
  • Est. Priority Date: 02/09/2005
  • Status: Abandoned Application
First Claim
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1. A sensor device for measuring CO2 in an ambient atmosphere, comprising:

  • a sensor body inert to water and CO2, said body having a chamber adapted to be functionally proximate an ambient atmosphere;

    a quantity of ionically pure water in said chamber;

    a membrane separating said water from said ambient atmosphere, said membrane being CO2 permeable and water vapor impermeable such that said membrane is in contact with said atmosphere;

    a conductivity meter in contact with said water for measuring the conductivity of said water; and

    a signal for indicating the CO2 concentration as a function of said conductivity.

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