Photometer
AssigneeHartmann & Braun Aktiengesellschaft
InventorWalter Fabinski
Life of this patent
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Abstract
An infrared photometer having a measuring cuvette with entrance and exit windows and an output detector preferably made of polyvinylidenfluoride; a second infrared detector definitely made of polyvinylidenfluoride, being partially transmissive is disposed in front of the entrance window of the cuvette, and a selecting cuvette is insertible in front of this second detector.
Claims5
Photometer having a means for providing modulated infrared radiation, a measuring cuvette traversed by a measuring gas, the cuvette having an entrance window facing said means for providing radiation and an exit window, there being an output detector provided at said exit window, the improvement comprising:
- a second infrared detector made of polyvinylidenfluoride, being partially transmissive to infrared radiation and being disposed between said means for providing modulated radiation and the entrance window of said cuvette.
Dependencies are inferred from the claim text.