Patent · US Active

Rogowski sensor and method for measuring a current

US7969139B2 · kind B2 · utility

5Cited by

7References

13Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Jochen Ermisch · Radebeul, DE
Uwe Hering · Berlin, DE
Frank Thieme · Dresden, DE
Ralf-Reiner Volkmar · Berlin, DE

Key dates

Filing date	Dec 12, 2007
Grant date	Jun 28, 2011
Priority date	—
Expiry date	Feb 4, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG01R15/181
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A Rogowski sensor is provided for measuring a current of an electrical conductor. The sensor has a Rogowski coil, which has an electrical winding resistor, and an integration device which is connected to the Rogowski coil and is intended to generate an output signal which is proportional to the electrical current to be measured by the Rogowski sensor. The integration device is formed by the winding resistor of the Rogowski coil and a capacitance which is connected to the two winding connections of the Rogowski coil, and for the output signal from the integration device to be formed by the voltage applied to the capacitance.

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