公开(公告)号：US10288559B2

公开(公告)日：2019-05-14

申请号：US15449107

申请日：2017-03-03

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Raghavendra Muniraju ,  Mahadevanna Basavaraj Shreshthi ,  Venkata Subbanna Karanam

IPC: G01N21/61 ,  G01N33/00 ,  G01N21/3504 ,  G01N21/3518

Abstract: Apparatus for determining concentration of a targeted gas in environmental air, the apparatus includes a non-dispersive infrared (NDIR) sensor, a pressure sensor coupled in fluid communication with an interior of the NDIR sensor; and a processor. The processor is configured to receive pressure data from the pressure sensor based on gas pressure within an interior of the NDIR sensor, receive a target-gas concentration signal from the NDIR sensor, and produce a pressure-compensated concentration signal based on the target-gas concentration signal, a predetermined reference pressure and the pressure data from the pressure sensor.

公开(公告)号：US20180252640A1

公开(公告)日：2018-09-06

申请号：US15449107

申请日：2017-03-03

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Raghavendra Muniraju ,  Mahadevanna Basavaraj Shreshthi ,  Venkata Subbanna Karanam

IPC: G01N21/3518 ,  G01N33/00

CPC classification number: G01N21/3518 ,  G01N21/3504 ,  G01N21/61 ,  G01N33/0032 ,  G01N2201/1218

Abstract: Apparatus for determining concentration of a targeted gas in environmental air, the apparatus includes a non-dispersive infrared (NDIR) sensor, a pressure sensor coupled in fluid communication with an interior of the NDIR sensor; and a processor. The processor is configured to receive pressure data from the pressure sensor based on gas pressure within an interior of the NDIR sensor, receive a target-gas concentration signal from the NDIR sensor, and produce a pressure-compensated concentration signal based on the target-gas concentration signal, a predetermined reference pressure and the pressure data from the pressure sensor.