Dynamic and random-access strain measurement by fiber Bragg gratings with synthesis of optical coherence function

2004 ◽  
Author(s):  
Momoyo Enyama ◽  
Kazuo Hotate
Keyword(s):  
Strain Measurement ◽  
Coherence Function ◽  
Fiber Bragg Gratings ◽  
Random Access ◽  
Bragg Gratings ◽  
Optical Coherence ◽  
Optical Coherence Function

In-situ strain measurement of ballistic fabrics during impact using fiber Bragg gratings

2020 ◽  
Vol 59 ◽  
pp. 102334
Author(s):  
D.A. Hackney ◽  
T. Goode ◽  
F. Seng ◽  
S. Schultz ◽  
M. Pankow ◽  
...  
Keyword(s):  
Strain Measurement ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
In Situ Strain Measurement

Strain measurement inside a strong pulsed magnet based on embedded fiber Bragg gratings

2012 ◽  
Author(s):  
Qian Zhang ◽  
Dongsheng Zhang ◽  
Jieyan Li ◽  
Biao Shui ◽  
Yongxing Guo
Keyword(s):  
Strain Measurement ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Pulsed Magnet

scholarly journals High Speed, Localized Multi-Point Strain Measurements on a Containment Vessel at 1.7 MHz Using Swept-Wavelength Laser-Interrogated Fiber Bragg Gratings

Sensors ◽  
2020 ◽  
Vol 20 (20) ◽  
pp. 5935
Author(s):  
Steve Gilbertson ◽  
Mark Pickrell ◽  
Dario Castano ◽  
Gary Salazar ◽  
Tom Beery ◽  
...  
Keyword(s):  
Strain Measurement ◽  
High Speed ◽  
High Explosive ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Laser Source ◽  
Global Changes ◽  
Element Analysis ◽  
All Optical ◽  
Explosive Detonation

Dynamic elastic strain in ~1.8 and 1.0 m diameter containment vessels containing a high explosive detonation was measured using an array of fiber Bragg gratings. The all-optical method, called real-time localized strain measurement, recorded the strain for 10 ms after detonation with additional measurements being sequentially made at a rate of 1.7 MHz. A swept wavelength laser source provided the repetition rate necessary for such high-speed measurements while also providing enough signal strength and bandwidth to simultaneously measure 8 or more unique points on the vessel’s surface. The data presented here arethen compared with additional diagnostics consisting of a fast spectral interferometer and an optical backscatter reflectometer to show a comparison between the local and global changes in the vessel strain, both dynamically and statically to further characterize the performance of the localized strain measurement. The results are also compared with electrical resistive strain gauges and finite element analysis simulations.

Characterization of fiber Bragg gratings by use of optical coherence-domain reflectometry

1999 ◽  
Vol 17 (11) ◽  
pp. 2371-2378 ◽  
Author(s):  
E.I. Petermann ◽  
J. Skaar ◽  
B.E. Sahlgren ◽  
R.A.H. Stubbe ◽  
A.T. Friberg
Keyword(s):  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Optical Coherence

Interferometric temperature-insensitive strain measurement with different-diameter fiber Bragg gratings

1997 ◽  
Vol 22 (11) ◽  
pp. 790 ◽  
Author(s):  
Minho Song ◽  
Byoungho Lee ◽  
Sang Bae Lee ◽  
Sang Sam Choi
Keyword(s):  
Strain Measurement ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings
Sign in / Sign up

Export Citation Format

Share Document