Patent · US Active

Device and method for spatially resolved measurement of temperature strain, or both by brillouin scattering

US9933322B2 · kind B2 · utility

1Cited by

7References

16Claims

0Family size

Assignee

LIOS TECHNOLOGY GMBH · DE

Inventors

Wieland Hill · Odenthal, DE
Alexander Rath · Cologne, DE
Benjamin Marx · Cologne, DE

Key dates

Filing date	Aug 9, 2016
Grant date	Apr 3, 2018
Priority date	—
Expiry date	Aug 9, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG01K11/322
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Device for spatially resolved measurement of temperature, strain, or both by Brillouin scattering, with a laser light source (1) for generating a laser radiation, an optical fiber (5) used for the measurement, into which the laser radiation can be coupled in and from which Brillouin signals generated by Brillouin scattering can be coupled out, sensors for detecting the coupled-out Brillouin signals, evaluators for determining spatially resolved from the detected Brillouin signals the temperature, strain, or both of sections of the optical fiber (5), a polarization beam splitter (10, 11) capable of splitting the coupled-out Brillouin—signals into two components (12, 13) having mutually different polarizations, and an optical coupler (16, 17) for admixing a laser radiation to the Brillouin signal.

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