摘要 |
The invention concerns a photometer for measuring gas constituents, having infrared radiation source with radiation emitter modulation, a measuring cell provided with a measurement and comparison chamber, and a sensor with optopneumatic absorption on the gas constituent X, therefore filled with X. In order to obtain accurate measurement of several constituents but requiring few appliances with such a photometer, at least another sensor is placed behind the first sensor, for measuring several gas constituents. Said other sensor is filled with the isotope of Y* for measuring the gas constituent Y and the first sensor is optically transparent as regards the other gas constituent Y* to be measured, in particular the absorption bands characteristic of said constituent.
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申请人 |
HARTMANN & BRAUN GMBH & CO. KG, 65760 ESCHBORN, DE |
发明人 |
ZOECHELBAUER, MICHAEL, DR., 61440 OBERURSEL, DE;FABINSKI, WALTER, DIPL.-ING., 65830 KRIFTEL, DE;LIEDTKE, THOMAS, DIPL.-ING., 61350 BAD HOMBURG, DE;MOEDE, MICHAEL, 65824 SCHWALBACH, DE;VOGT, SIEGFRIED, 64546 MOERFELDEN-WALLDORF, DE |