Patent · US Active

Optical fibre sensor for measuring deformation, said sensor operating in a harsh environment

US11099005B2 · kind B2 · utility

0Cited by

1References

5Claims

0Family size

Assignee

COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

Guy Cheymol · Les Ulis, FR
Laurent Remy · Orsay, FR

Key dates

Filing date	Apr 10, 2019
Grant date	Aug 24, 2021
Priority date	—
Expiry date	Apr 10, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG01B2290/25
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A fiber-optic sensors for measuring deformation, intended to operate in a harsh environment is provided. The sensor comprises a Fabry-Perot-cavity-based optical measurement head, a linking optical fiber and an expansion reserve case, the case comprising a segment of the linking optical fiber. The inside thickness of the case is comprised between one and several millimeters, the case being flat and of shape referred to as bicorne shape, the shape comprising a convex central portion and two concave symmetric ends, the optical fiber forming, inside the bicorne, one and only one arch, the segment of the optical fiber being, in addition, tangent to the internal surfaces of the reserve case, whatever the temperature conditions.

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