| 摘要 |
A gas sensor device for determining a molar concentration of a gas to be detected, that absorbs light of a measurement wavelength that is characteristic of the gas in the infrared light region, includes a light emission device emitting measurement light of measurement wavelength into a solid angle region of a light absorption path extending through the gas, and a light detector measuring an intensity of at least one component of the measurement light that has propagated through the light absorption path, the light absorption path extending from the light emission device to an object outside the gas sensor device that at least partially reflects the measurement light to the light detector, and being essentially disposed outside of the gas sensor device, and means for determining the length of the light absorption path. A method for determining a concentration of a gas to be detected is also described. |
