Synchronous detection system and detection method for trace nitrogen-oxygen compound based on photoacoustic spectrometry
US12123825B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2024 |
| Grant date | Oct 22, 2024 |
| Priority date | — |
| Expiry date | Feb 5, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a synchronous detection system for a trace nitrogen-oxygen compound based on photoacoustic spectrometry, including a NOx (Nitrogen Oxide) detection air channel, a dust detection air channel and a double-photoacoustic spectrometry detection mechanism which are mutually connected in parallel; the NOx detection air channel includes a background interference detection air pipe, a NO2 detection air pipe and a NO detection air pipe that are mutually connected in parallel, and a NOx photoacoustic detection cavity; and the dust detection air channel includes a dust detection air pipe and a dust photoacoustic detection cavity communicating with the dust detection air pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.