Patent · US Active

System and method to avoid the influence of ozone for a gas sensor

US11674940B2 · kind B2 · utility

1Cited by

2References

20Claims

0Family size

Assignee

Renesas Electronics America Inc. · US

Inventors

Christian Meyer · Karlsruhe, DE
Debra J. Deininger · San Jose, US
Clayton Kostelecky · Longmont, US
Ronald Schreiber · Lörrach, DE
Holger Saalbach · Radebeul, DE
Ravi Kanth Reddy Chilumula · Longmont, US

Key dates

Filing date	Dec 15, 2020
Grant date	Jun 13, 2023
Priority date	—
Expiry date	Feb 19, 2041

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02A50/20
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In some embodiments, a method of operating a gas sensor includes setting power to a heater in contact with a MOx sensor to provide a temperature that is below a threshold temperature; holding the temperature below the threshold temperature for a period of time to reduce ozone concentration in a gas sample in contact with the MOx sensor; increasing power to the heater to increase the temperature of the MOx sensor to an operating temperature; acquiring resistance data from the MOx sensor at the operating temperature; and processing the resistance data to provide a result related the gas sample.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.