Gaseous nitrous acid measuring device based on dual-channel detection pool

• Main Authors: LIAO SONGDI, ZHU MANNI, ZHENG JUNYU, YU FEI
• Format: Patent
• Language: Chinese; English
• Published: 15.07.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The utility model discloses a gaseous nitrous acid measuring device based on a dual-channel detection pool. The gaseous nitrous acid measuring device comprises a gas sampling module, a diazotization reaction module and a dual-channel detection pool module, the gas sampling module is used for sucking gas to be detected from the outside according to a preset rate for trapping to obtain trapping liquid; the diazotization reaction module is used for receiving the trapping liquid for reactive dyeing to obtain dyeing reaction liquid. The dual-channel detection pool module is used for receiving the dyeing reaction liquid, selecting a corresponding channel for detection according to the required measurement precision and range, introducing monochromatic light into the dyeing reaction liquid, receiving the monochromatic light after transmission of the dyeing reaction liquid, and sending the monochromatic light to the detection pool module; a detection signal is obtained based on transmission of monochromatic light of