Title:
FULLY COMPENSATED OPTICAL GAS SENSING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/015697
Kind Code:
A3
Abstract:
Robust and portable gas detection apparatus using at least two optical light sources (220: 320, 330; 420, 430) of different central wavelengths arranged to propagate in the gas detector along a common pathway (280) towards a common detector (240) and adapted to detect the presence and concentration of gases such as C02, NOx, water vapor, methane, etc.
Inventors:
DELIWALA SHRENIK (US)
Application Number:
PCT/US2021/041378
Publication Date:
February 24, 2022
Filing Date:
July 13, 2021
Export Citation:
Assignee:
ANALOG DEVICES INC (US)
DELIWALA SHRENIK (US)
DELIWALA SHRENIK (US)
International Classes:
G01N21/3504; G01J3/427; G01N33/00
Domestic Patent References:
| WO2007080398A1 | 2007-07-19 | |||
| WO2009150325A1 | 2009-12-17 |
Foreign References:
| US6599253B1 | 2003-07-29 | |||
| US20190094134A1 | 2019-03-28 | |||
| US5957858A | 1999-09-28 | |||
| DE102017213196A1 | 2019-01-31 |
Attorney, Agent or Firm:
SCOTT, Corey (US)
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