US 11,674,918 B2
Monolithic gas-sensing chip assembly and method
Radislav Alexandrovich Potyrailo, Niskayuna, NY (US); Emad Andarawis Andarawis, Ballston Lake, NY (US); and Naresh Kesavan Rao, Clifton Park, NY (US)
Assigned to General Electric Company, Niskayuna, NY (US)
Filed by GENERAL ELECTRIC COMPANY, Schenectady, NY (US)
Filed on Apr. 7, 2022, as Appl. No. 17/715,693.
Application 17/715,693 is a continuation of application No. 16/562,611, filed on Sep. 6, 2019, granted, now 11,300,534.
Prior Publication US 2022/0229005 A1, Jul. 21, 2022
Int. Cl. G01N 27/12 (2006.01); G01N 27/22 (2006.01)
CPC G01N 27/123 (2013.01) [G01N 27/226 (2013.01); G01N 27/228 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A gas-sensing chip assembly for sensing at least one gas analyte, the chip assembly comprising:
a sensing material configured to detect the at least one gas analyte;
a sensing system that includes an electrical circuit in contact with the sensing material;
a heating element configured to control a temperature of the sensing material of the sensing system;
a sensing circuit configured to measure an electrical response of the sensing system to an alternating electrical current applied to the sensing system;
one or more processors configured to control one or more of: a low detection range of the sensing system to the at least one gas analyte, a high detection range of the sensing system to the at least one gas analyte, a linearity of a response of the sensing system to the at least one gas analyte, a dynamic range of measurements of the at least one gas analyte by the sensing system, a rejection of one or more interfering gas analytes by the sensing system, a correction for aging or poisoning of the sensing system, or a rejection of ambient interferences that may affect the electrical response of the sensing system to the alternating electrical current applied to the sensing system that may be measured by the sensing circuit; and
a monolithic exterior housing in which the sensing material, the sensing system, the heating element, the sensing circuit, and the one or more processors are disposed.