| 摘要 |
The invention relates to an emitter arrangement for a non-dispersive infrared gas analyser, which consists of an emitting chamber which comprises a light source which is arranged therein, whereby the radiation thereof is guided through at least one outlet window in at least one radiation path of the gas analyser, and from means for periodically switching on and off the radiation in the at least one radiation path. According to the invention, the means comprise a DMD-type digital micromirror device (4) which is arranged in the radiation chamber (1) in order to periodically switch the radiation (10) on and off, said device guiding the radiation (10) of the radiation source (3) in an alternating and electrically controlling manner in the at least one radiation path and in a direction which deviates therefrom. |
