Sensor for sensing a chemical component concentration using an electroactive material
First Claim
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1. An apparatus for sensing a concentration of vaporized hydrogen peroxide, comprising:
- a sensing element comprised of an electroactive material, wherein said sensing element is exposed to vaporized hydrogen peroxide inside a chamber; and
means for determining a change in an electrical property of the electroactive material, wherein said change in the electrical property varies in accordance with a change in the concentration of the vaporized hydrogen peroxide in the chamber.
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Abstract
An electroactive material (e.g., a doped electroactive polymer, or an intercalcated carbon/graphite fiber) responsive to the concentration of a chemical component is used to sense the concentration of the chemical component inside a chamber. The conductivity, or other electrical property of the electroactive material, varies in response to the exposure to the chemical component.
54 Citations
60 Claims
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1. An apparatus for sensing a concentration of vaporized hydrogen peroxide, comprising:
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a sensing element comprised of an electroactive material, wherein said sensing element is exposed to vaporized hydrogen peroxide inside a chamber; and
means for determining a change in an electrical property of the electroactive material, wherein said change in the electrical property varies in accordance with a change in the concentration of the vaporized hydrogen peroxide in the chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for sensing a concentration of vaporized hydrogen peroxide, the method comprising:
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exposing a sensing element to vaporized hydrogen peroxide inside a chamber, wherein said sensing element includes an electroactive material; and
determining a change in an electrical property of the electroactive material, wherein said change in the electrical property varies in accordance with a change in the concentration of the vaporized hydrogen peroxide in the chamber. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A sensor for the detection of a concentration of a chemical component, comprising:
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a host material;
an additive that modifies an electrical property of the host material, the additive having a chemical reaction when exposed to the chemical component;
a source of electrical current, said electrical current conducting through the host material; and
means for measuring a change in the electrical property of the host material as the chemical component reacts with the additive. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A method for sensing a concentration of a chemical component in a chamber, the method comprising:
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exposing a sensing element to the chemical component inside the chamber, wherein said sensing element includes an electroactive material;
determining a change in an electrical property of the electroactive material, wherein said change in the electrical property varies in accordance with a change in the concentration of the chemical component in the chamber; and
storing a plurality of data sets in a memory, wherein said data sets include a value indicative of said electrical property as a function of time exposure to the chemical component. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60)
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Specification