Gas sensor
First Claim
Patent Images
1. A gas sensor comprising:
- walls delimiting a gas detection chamber, and having an introduction port through which an observed gas is introduced into the gas detection chamber;
a measuring element disposed in the gas detection chamber, and measuring concentration of a subject gas contained in the observed gas;
a heater constituting at least a portion of the walls, the portion facing the gas detection chamber; and
a first dehumidifier absorbing water in a reversible manner, and disposed on a portion of the walls that is located opposite the introduction port with respect to the measuring element,wherein the heater includes a first heater which is tube-shaped and a second heater which is ring-shaped,and wherein the first dehumidifier is provided to be sandwiched between the first heater and the second heater.
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Abstract
A gas sensor which includes walls delimiting a gas detection chamber, and having an introduction port (or an inlet) through which an observed gas is introduced into the gas detection chamber, a measuring element disposed in the gas detection chamber and measuring concentration of a subject gas contained in the observed gas, and a heater constituting at least a portion of the walls, the portion facing the gas detection chamber.
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Citations
3 Claims
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1. A gas sensor comprising:
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walls delimiting a gas detection chamber, and having an introduction port through which an observed gas is introduced into the gas detection chamber; a measuring element disposed in the gas detection chamber, and measuring concentration of a subject gas contained in the observed gas; a heater constituting at least a portion of the walls, the portion facing the gas detection chamber; and a first dehumidifier absorbing water in a reversible manner, and disposed on a portion of the walls that is located opposite the introduction port with respect to the measuring element, wherein the heater includes a first heater which is tube-shaped and a second heater which is ring-shaped, and wherein the first dehumidifier is provided to be sandwiched between the first heater and the second heater. - View Dependent Claims (2, 3)
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Specification