초록 ▼

An infrared measuring arrangement with essentially expanded measuring range with an infrared radiation source (3) and an infrared radiation detector (4). The infrared radiation source (3) has a first, direct beam path to the infrared radiation detector (4), on the one hand, and, on the other hand, a

An infrared measuring arrangement with essentially expanded measuring range with an infrared radiation source (3) and an infrared radiation detector (4). The infrared radiation source (3) has a first, direct beam path to the infrared radiation detector (4), on the one hand, and, on the other hand, a second, reflected beam path to the infrared radiation detector (4), which is longer than the first one.

대표청구항 ▼

[ What is claimed is:] [1.] An arrangement for measuring the infrared absorption in a gas sample, the arrangement comprising:an infrared radiation source;an infrared radiation detector having a sensitivity range;a first substantially direct infrared radiation source beam path to said infrared radiat

[ What is claimed is:] [1.] An arrangement for measuring the infrared absorption in a gas sample, the arrangement comprising:an infrared radiation source;an infrared radiation detector having a sensitivity range;a first substantially direct infrared radiation source beam path to said infrared radiation detector, said first beam path having a first beam length in the gas sample to have said sensitivity range to measure gas concentrations within a first portion of a measuring range; and,a second, reflected infrared radiation source beam path to said infrared radiation detector, said second beam path being longer than the first beam path, said second beam path having a second beam length in the sample to have said sensitivity range measure the gas concentrations within a second portion of the measuring range.