Patent · US Active

Gas sensor

US10228338B2 · kind B2 · utility

2Cited by

0References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Andreas Petersen · Erbach, DE
Andreas Krauss · Lörrach, DE
Michael Badeja · Leonberg, DE

Key dates

Filing date	Feb 10, 2017
Grant date	Mar 12, 2019
Priority date	—
Expiry date	Sep 10, 2037

Classification

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

Abstract

A measuring device for determining a gas concentration includes a gas-sensitive element, a sensing device, a stimulation unit, and a processing unit. The gas-sensitive element is configured to absorb a gas. The sensing device is configured to determine a parameter of the gas-sensitive element in a predetermined time period, where the parameter depends on an absorbed quantity of the gas. The stimulation unit is configured to stimulate the gas-sensitive element and accelerate desorption of the gas out of the gas-sensitive element. The processing unit is configured to determine a rate of change of the parameter, to control the stimulation such that a concentration of the gas in the gas-sensitive element lies outside of an equilibrium state, and to determine the gas concentration based on the rate of change.

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