Gas sensing apparatus and method of sensing gas using the same
AssigneeElectronics and Telecommunications Research Institute
InventorsIn-Gyoo KIM, Gyung-Ock Kim
Life of this patent
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Abstract
Provided are a gas sensing apparatus and a gas sensing method using the apparatus. The gas sensing apparatus includes a detection chamber, a light source, a light sensor, a gas source, and a controller. The light source is disposed at one end of the detection chamber, and a light sensor is disposed at the other end of the detection chamber. The gas source provides gas to the detection chamber. The controller controls the light source and the light sensor. The light source includes a laser supplying laser light, and a light scanner reflecting and scanning the laser light in the detection chamber. The controller includes a phase sensitive detector electrically connected to the light sensor.
Claims12
An apparatus for sensing gas, comprising:
- a detection chamber;
- a light source disposed at one end of the detection chamber, and a light sensor disposed at the other end of the detection chamber;
- a gas source providing gas to the detection chamber;
- and
- a controller controlling the light source and the light sensor,
- wherein the light source includes a laser supplying laser light, and a light scanner reflecting and scanning the laser light in the detection chamber, and
- the controller includes a phase sensitive detector electrically connected to the light sensor.
A method for sensing gas, comprising:
- providing a detection chamber;
- providing gas to the detection chamber;
- scanning light in the detection chamber;
- absorbing the scanned light;
- and
- obtaining volumetric data of the gas from the absorbed light.
Dependencies are inferred from the claim text.