Distributed fiber sensor
Abstract
In an embodiment, a sensor comprises a waveguide comprising a photoacoustic generation element disposed on the waveguide, the photoacoustic generation element comprising a photoabsorptive material; and a sensing element comprising an optical acoustic wave detector. In another embodiment, a sensing system comprises the sensor and a laser. In yet another embodiment, a method of sensing comprises providing the sensing system; heating the photoabsorptive material with a laser to generate an acoustic signal; sensing an intensity of laser light reflected by the optical acoustic wave detector to detect the acoustic signal; and determining a time of flight of the acoustic signal between the generation and the detection to determine a change in a parameter change in a medium between the photoabsorptive material and the optical acoustic wave detector.
- Inventors:
- Issue Date:
- Research Org.:
- University of Massachusetts, Boston, MA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1600249
- Patent Number(s):
- 10466207
- Application Number:
- 15/569,112
- Assignee:
- University of Massachusetts (Boston, MA)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01K - MEASURING TEMPERATURE
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- FE0023031
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 04/29/2016
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Wang, Xingwei, and Wu, Nan. Distributed fiber sensor. United States: N. p., 2019.
Web.
Wang, Xingwei, & Wu, Nan. Distributed fiber sensor. United States.
Wang, Xingwei, and Wu, Nan. Tue .
"Distributed fiber sensor". United States. https://www.osti.gov/servlets/purl/1600249.
@article{osti_1600249,
title = {Distributed fiber sensor},
author = {Wang, Xingwei and Wu, Nan},
abstractNote = {In an embodiment, a sensor comprises a waveguide comprising a photoacoustic generation element disposed on the waveguide, the photoacoustic generation element comprising a photoabsorptive material; and a sensing element comprising an optical acoustic wave detector. In another embodiment, a sensing system comprises the sensor and a laser. In yet another embodiment, a method of sensing comprises providing the sensing system; heating the photoabsorptive material with a laser to generate an acoustic signal; sensing an intensity of laser light reflected by the optical acoustic wave detector to detect the acoustic signal; and determining a time of flight of the acoustic signal between the generation and the detection to determine a change in a parameter change in a medium between the photoabsorptive material and the optical acoustic wave detector.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 05 00:00:00 EST 2019},
month = {Tue Nov 05 00:00:00 EST 2019}
}
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