Patent ID: 9207170
Filing Date: 2015-12-08
Classification: G01N

Abstract:
1. A gas detector system comprising: a transmitter comprising a light source, by which an analytical light beam is emitted, and with a transmitter lens assembly, which is designed to collimate the analytical light beam along an emission direction, and a receiver comprising a receiver lens assembly, which defines a receiver focal point and a receiver axis, a light mixing rod, which has an inlet end and an outlet end and defines a rod axis extending from the inlet end to the outlet end, wherein the inlet end points towards the receiver lens assembly, an analytical detector and a reference detector, wherein the analytical detector is arranged on a side of the outlet end pointing away from the receiver lens assembly, an analytical filter, which is arranged in front of the analytical detector as viewed from the receiver lens assembly, and a reference filter, which is arranged in front of the reference detector as viewed from the receiver lens assembly.