Device and method for determining a mass flow of a fluid, and method for producing such a device

US10466085B2 · kind B2 · utility

Assignee

• Robert Rosch GmbH · DE

Inventors

• Michael Rittmann · Ditzingen, DE
• Uwe Konzelmann · Asperg, DE
• Norbert Schneider · Schorndorf, DE

Key dates

• Filing date: Jul 31, 2015
• Grant date: Nov 5, 2019
• Expiry date: Aug 2, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G01F1/692
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A device for determining a fluid mass flow includes a sensor element for acquiring the fluid, the sensor element being configured within a flow path of the fluid to provide a sensor signal, an integrated circuit having an operating unit for providing an operating signal for operating the sensor element and a conversion unit for converting the sensor signal into a converted signal, the integrated circuit including a first discrete circuit element having a first terminal for receiving the sensor signal, a second terminal for providing the operating signal, and a third terminal for providing the converted signal, and a signal processing unit to determine, using the converted signal, the mass flow of the fluid, the signal processing unit including a second discrete circuit element having a first terminal for receiving the converted signal and a second terminal for providing a mass flow signal representing the mass flow.