Patent · US Active

Device and system for detecting dynamic strain

US11002620B2 · kind B2 · utility

0Cited by
5References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 8, 2019
Grant dateMay 11, 2021
Priority date—
Expiry dateNov 8, 2039

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01D5/35316
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A device and system for detecting dynamic strain. The device comprises a longitudinally extending carrier and an optical fiber embedded along an outer surface of a length of the carrier. The optical fiber comprises at least one pair of fiber Bragg gratings (FBGs) tuned to reflect substantially identical wavelengths. The system comprises the device and an interrogator comprising a laser source and a photodetector. The interrogator is configured to perform interferometry by shining laser light along the optical fiber and detecting light reflected by the FBGs. The interrogator outputs dynamic strain measurements based on interferometry performed on the reflected light.

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