公开(公告)号：US20190137391A1

公开(公告)日：2019-05-09

申请号：US16235384

申请日：2018-12-28

申请人： Itron, Inc.

发明人： Mark A. Stambaugh

IPC分类号： G01N21/3518 ,  G01N33/00

CPC分类号： G01N21/3518 ,  G01N21/0303 ,  G01N21/3504 ,  G01N33/0047 ,  G01N2201/062 ,  G01N2201/0662 ,  G01N2201/0686

摘要： Systems and methods for verifying that light absorption is caused by a targeted gaseous chemical compound. A first transmittance of light, either generated at, or filtered to, a first wavelength range and a second transmittance of light, either generated at, or filtered to, a second wavelength range are measured by first and second photon detectors. A ratio of the first and second measured transmittance is determined and that ratio is compared to a transmittance ratio associated with a targeted gaseous chemical compound to verify that the light absorption is caused by the targeted gaseous chemical compound.

公开(公告)号：US10753865B2

公开(公告)日：2020-08-25

申请号：US16235384

申请日：2018-12-28

申请人： Itron, Inc.

发明人： Mark A. Stambaugh

IPC分类号： G01N21/25 ,  G01N21/3518 ,  G01N33/00 ,  G01N21/3504 ,  G01N21/03

摘要： Systems and methods for verifying that light absorption is caused by a targeted gaseous chemical compound. A first transmittance of light, either generated at, or filtered to, a first wavelength range and a second transmittance of light, either generated at, or filtered to, a second wavelength range are measured by first and second photon detectors. A ratio of the first and second measured transmittance is determined and that ratio is compared to a transmittance ratio associated with a targeted gaseous chemical compound to verify that the light absorption is caused by the targeted gaseous chemical compound.

公开(公告)号：US10168276B1

公开(公告)日：2019-01-01

申请号：US15806714

申请日：2017-11-08

申请人： Itron, Inc.

发明人： Mark A. Stambaugh

IPC分类号： G01N21/25 ,  G01N21/3518 ,  G01N33/00

摘要： Systems and methods for verifying that light absorption is caused by a targeted gaseous chemical compound. A first transmittance of light, either generated at, or filtered to, a first wavelength range and a second transmittance of light, either generated at, or filtered to, a second wavelength range are measured by first and second photon detectors. A ratio of the first and second measured transmittance is determined and that ratio is compared to a transmittance ratio associated with a targeted gaseous chemical compound to verify that the light absorption is caused by the targeted gaseous chemical compound.