Patent ID: 11972595
Assignee: TOTALENERGIES SE
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 5:
6. The gas detector of claim 5, wherein the second acquisition means are further adapted for providing, for each analysis band of the at least one analysis band, the background brightness temperature values based on the at least one spectral image captured by the one of the at least two optical channels of the image capturing unit for which the corresponding spectral band, called the reference band, is contained in the spectral domain of transparency of the target gas or in which the target gas has a greater transparency than in each analysis band of the at least one analysis band, and
wherein the gas detector is adapted for capturing the at least one spectral image which corresponds to the reference band at the same time or during the same image capturing sequence as the spectral image for each analysis band of the at least one analysis band.