Automatic control circuit for infrared detectors
US6414310B1 · kind B1 · utility
4Cited by
4References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 29, 1999 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Oct 29, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/3166
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A circuit for measuring the relative absorption signals from an infrared detector to measure gas concentrations in the detector, wherein an absorption gas wavelength signal is compared to a reference gas wavelength signal, through circuits and a computer processor, together having automatic compensation for absorption variables and which permit the measurement of gas absorption by use of Beer's Law equations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.