Sensor with multiple modes or ranges

US11193844B2 · kind B2 · utility

Assignee

• Infineon Technologies AG · DE

Inventors

• Athanasios Kollias · Munich, DE
• Christian Jenkner · Friesach, AT
• Alexander Joebstl · Villach, AT
• Daniel Neumaier · Feldkirchen in Kärnten, AT

Key dates

• Filing date: May 21, 2019
• Grant date: Dec 7, 2021
• Expiry date: Mar 27, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R27/2605
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In accordance with an embodiment, a sensor includes: a signal source with a first signal source terminal and a second signal source terminal; a bridge circuit connected to the first and second signal source terminals, the bridge circuit including: a first branch including: a first reference impedance element; and a first sensor impedance element configured to transduce a magnitude to be measured into a first impedance-related parameter; and a second branch including: a second reference impedance element; and a second sensor impedance element configured to transduce the magnitude to be measured into a second sensor impedance-related parameter.