Patent ID: 9568465
Date: 2017-02-14
CPC Classifications: A61B,G01N

Claim:
1. A measurement device for measuring a concentration of a component of a gas mixture comprising: a chamber for receiving the gas mixture; at least one light source that emits light into the chamber, the emitted light including a wavelength between 230 nm and 320 nm; at least one light sensor that detects a portion of the light from the light source that has propagated through the gas mixture in the chamber; and a processor configured to determine the concentration of the component of the gas mixture based on the portion of the light emitted from the light source that is detected by the light sensor; wherein the at least one light source comprises a first light source including a LED with a central wavelength of light emission between 240 nm and 270 nm, and a second light source including a LED with a central wavelength of light emission between 270 nm and 300 nm, and wherein the LEDs of the first and second light sources each has a linewidth of light emission of less than 50 nm.