Fine dust measurement module and fine dust measurement device
US12105000B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 28, 2022 |
| Grant date | Oct 1, 2024 |
| Priority date | — |
| Expiry date | Jan 16, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/1021
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is provided a fine dust measurement module that includes a fluid inlet into which fluid including fine dust with particles of various diameters is flowed, a first channel through which, of the fine dust introduced through the fluid inlet, first fine dust with particles having a diameter greater than or equal to a first diameter passes, a second channel through which, of the fine dust introduced through the fluid inlet, second fine dust with particles having a diameter less than the first diameter passes, a flow ratio control nozzle arranged in the first channel and configured to control a flow ratio between fluid flowing into the first channel and fluid flowing into the second channel, and a fine dust sensor configured to sense fine dust flowing into the second channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.