Patent ID: 8330107
Filing Date: 2012-12-11
Classification: G01N,Y02A

Abstract:
1. A TDLS gas sensor for measuring carbon dioxide concentration (CO 2 concentration) in an incubator or climate chambers of similar design with: a measuring pick-up with optronic components that comprises at least one laser diode as emitter and a detector for a laser beam emitted by the laser diode; and an absorption pick-up that has a volume in which the gas to be measured can circulate from an interior chamber of the incubator and in which the laser beam propagates, and with at least one reflector that guides the laser light emitted by the laser diode to the detector, and wherein the measuring pick-up and the absorption pick-up are separated atmospherically by a window and the optronic components in the measuring pick-up are thermally uncoupled from the absorption pick-up, and the window is arranged at an angle to the axis of the laser beam emitted by the laser diode.