Gas sensor for measuring gas concentrations, has an open optical path with light source and detector units spatially separated and includes a data link for bi-directional exchange of data between light source and detector units

摘要

Open measuring path (13) is driven by light source (3), under control of control and evaluating device (6), and sensed by detector (4) before processing by processing device (12). Light source unit (1) and detector unit (2) are also linked by a bi-directional communication channel (14,15) to allow the exchange of data under control of the respective control units (6,11).