Patent · US Expired

Method and device for the measurement of electric currents in at least two measuring ranges

US5963026A · kind A · utility

10Cited by

3References

10Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Thomas Bosselmann · Erlangen, DE
Hartmut Bartelt · Erlangen, DE

Key dates

Filing date	Feb 18, 1997
Grant date	Oct 5, 1999
Priority date	—
Expiry date	Feb 18, 2017

Classification

Technology area (CPC G)Physics
CPC primaryG01R15/246
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Two Faraday elements connected via optical connection means are assigned to a conductor. The Faraday rotation of the linearly polarized measuring light that has traversed the first Faraday element only is used as the measure of a current in a first measuring range. The Faraday rotation of the linearly polarized measuring light that has traversed both Faraday elements is used as the measure of a current in a second measuring range.

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