Device and method for gas concentration measurement
US12209955B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 22, 2024 |
| Grant date | Jan 28, 2025 |
| Priority date | — |
| Expiry date | May 22, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/127
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed are a device and a method for gas concentration measurement comprising a gas detection chamber, a temperature sensing element, a pressure sensing element, a light source supply device and a light sensing device for measuring a gas concentration of a to-be-measured gas (such as ozone). The temperature sensing element and the pressure sensing element respectively measure a temperature and a pressure of the to-be-measured gas. The light source supply device uses UV-LED as an ultraviolet light-emitting source, and provides a first detection light beam and a calibration light beam with different ozone absorbances, and then uses a light beam splitter to split the light beams into a split light that passes through the to-be-measured gas and a split light that does not pass through the to-be-measured gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.