Verfahren zum Betrieb von Gassensoren und Zugehörige Vorrichtung, Sensor und Programmprodukt
Anmelder: STMicroelectronics S.r.l. 🇮🇹
Details
- Veröffentlichungs-Nr.
- EP3623804
- Aktenzeichen
- EP19195691
- Anmeldetag
- 5. September 2019
- Veröffentlichung
- 25. Oktober 2023
- Erteilung
- 25. Oktober 2023
- Rechtsraum
- EP
- IPC
- G01N27/12
Abstract
A method of operating a gas sensor, in particular to enhance the selectivity of a metal oxide gas sensor (10), including applying heat by a heater (MHP, 104) to a metal oxide sensing element (106) of a gas sensor (10), varying the heat applied by said heater (MHP, 104) to said metal oxide sensing element (106) for at least a time interval (Tm), and measuring (1006) at least an electrical resistance (R) of said metal oxide sensing element (106) of the gas sensor (10) versus said variation of the heat (I<h>) applied to the metal oxide sensing element (106) for a time interval (Tm), comparing (1008) said measurement (C) of at least the electrical resistance (R) of said metal oxide sensing element versus said variation of the heat (I<h>) applied to the metal oxide sensing element (106) to a set of corresponding reference measurements (P0, P1; SS) associated to a plurality of different target gases (G1...G4) - Such measuring step includes measuring a further sensor parameter (R<D>) versus the variation of said electrical resistance (R) of said metal oxide sensing element (106) of the gas sensor (10) and said variation of the heat (I<h>) applied to the metal oxide sensing element (106) obtaining a trajectory in three dimensions (C) corresponding to the variation of said sensor resistance (R), the variation of said heat (I<h>) and the variation of said further sensor parameter (R<D>), said comparing operation (1008) includes comparing said trajectory in three dimensions (C) to a set of reference three-dimensional objects (SS), represented according to the same said three dimensions corresponding to the variation of said sensor resistance (R), said heat (I<h>) and said further sensor parameter (R<D>).
Anmelder
- Firma
- STMicroelectronics S.r.l.
- Land
- 🇮🇹 Italien
Italienische Konzerngesellschaft des schweizerisch-französischen Halbleiterherstellers STMicroelectronics. Entwickelt und fertigt Halbleiterkomponenten für Automobil-, Industrie- und Konsumelektronik.
2.334 Patente in unserer Datenbank
Fachgebiete
Buzzi, Notaro & Antonielli d'Oulx wurde 1992 in Turin gegründet und zählt zu Italiens zehn größten IP-Kanzleien, als vollumfängliche, kosteneffiziente Beraterin für nationale wie internationale Mandate vor EPA und EUIPO.
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Buzzi, Notaro & Antonielli d'Oulx S.p.A
Buzzi, Notaro & Antonielli d'Oulx S.p.A · Torino