Gas concentration detection device
US11953467B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 16, 2021 |
| Grant date | Apr 9, 2024 |
| Priority date | — |
| Expiry date | Oct 12, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/56
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gas concentration detection device includes: a gas concentration sensor having a gas sensor element that outputs an electric signal according to a gas concentration and a heater that heats the gas sensor element; a heater controller controlling energization and de-energization of the heater; a sensor controller having an ADC AD-converting the electric signal from an analog signal to a digital signal in synchronization with a sampling clock (fs) and detecting the gas concentration based on an output signal of the AD converter; and a timing adjuster shifting a switching timing of energization control from a conversion timing at which the AD converter performs the AD conversion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.