Patent · US Active

Circuit arrangement for the bidirectional operation of sound transducers disposed at the ends of a measuring section

US8126154B2 · kind B2 · utility

2Cited by

5References

6Claims

0Family size

Assignee

CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

Rudolf Bierl · Regensburg, DE
Waldemar Fruehauf · Koblenzer Straße, DE
Martin Lesser · Landshut, DE
Andreas Meyer · Monsheim, DE
Frank Steuber · Ditzingen, DE

Key dates

Filing date	Sep 5, 2007
Grant date	Feb 28, 2012
Priority date	—
Expiry date	Dec 5, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG01F1/667
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A sensor circuit for a flow sensor comprises terminating impedances connected in parallel to the sound transducers and has a signal generator, which is configured as a power source. The circuit arrangement is suitable particularly for the operation of an airflow sensor in internal combustion engines.

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