Patent · US Active

Device and system for detecting dynamic strain

US10473541B2 · kind B2 · utility

0Cited by
5References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 4, 2014
Grant dateNov 12, 2019
Priority date—
Expiry dateJul 4, 2034

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.