Fiber-optic interferometric strain gauge producing asymmetric fringes by using nonlinear feedback

1995 ◽  
Vol 31 (8) ◽  
pp. 1461-1464 ◽  
Author(s):  
N. Furstenau ◽  
W. Schmidt
Keyword(s):  
Strain Gauge ◽  
Fiber Optic ◽  
Nonlinear Feedback

Complex Dynamic Behavior in a Model of Electro-Optic Device with Time-Delayed Feedback

1998 ◽  
Vol 08 (06) ◽  
pp. 1347-1354 ◽  
Author(s):  
Andrew V. Shobukhov
Keyword(s):  
Hopf Bifurcation ◽  
Numerical Investigation ◽  
Infinite Number ◽  
Strain Gauge ◽  
Fiber Optic ◽  
Equilibrium Points ◽  
Nonlinear Feedback ◽  
Complex Dynamic ◽  
Electro Optic ◽  
Time Delayed Feedback

Oscillatory and chaotic regimes arising from Andronov-Hopf bifurcation are obtained in a model of fiber-optic interferometric strain gauge with delayed nonlinear feedback as a result of analytical and numerical investigation. Complicated behavior of solutions in the case of infinite number of equilibrium points is reported.

Monomode fiber-optic strain gauge with simultaneous phase- and polarization-state detection

1985 ◽  
Vol 10 (11) ◽  
pp. 576 ◽  
Author(s):  
P. Akhavan Leilabady ◽  
J. D. C. Jones ◽  
D. A. Jackson
Keyword(s):  
Strain Gauge ◽  
Fiber Optic ◽  
Polarization State ◽  
State Detection

Fiber-optic strain-gauge manometer up to 100 MPa

1992 ◽  
Vol 41 (1) ◽  
pp. 72-76 ◽  
Author(s):  
W.J. Bock ◽  
R. Wisniewski ◽  
T.R. Wolinski
Keyword(s):  
Strain Gauge ◽  
Fiber Optic

A fiber optic, Fabry–Perot strain gauge calibrator

2007 ◽  
Vol 16 (5) ◽  
pp. 1931-1935
Author(s):  
Abdeq M Abdi ◽  
Alan R Kost
Keyword(s):  
Strain Gauge ◽  
Fiber Optic ◽  
Fabry Perot

Nonuniform ac magnetostriction in metallic glass: Model and measurement using a fiber‐optic strain gauge (abstract)

1988 ◽  
Vol 64 (10) ◽  
pp. 5427-5427
Author(s):  
K. P. Koo ◽  
D. M. Dagenais ◽  
F. Bucholtz ◽  
A. Dandridge
Keyword(s):  
Metallic Glass ◽  
Strain Gauge ◽  
Fiber Optic ◽  
Glass Model

Validation of a novel fiber optic strain gauge in a cryogenic and high magnetic field environment

Cryogenics ◽  
2010 ◽  
Vol 50 (10) ◽  
pp. 700-707 ◽  
Author(s):  
Scott Baxter ◽  
M’hamed Lakrimi ◽  
Adrian M. Thomas ◽  
Yunxin Gao ◽  
Hugh Blakes ◽  
...  
Keyword(s):  
Magnetic Field ◽  
High Magnetic Field ◽  
Strain Gauge ◽  
Fiber Optic ◽  
Field Environment

scholarly journals Applying fiber-optic system to control shaft torque

2021 ◽  
Vol 2021 (3) ◽  
pp. 101-106
Author(s):  
Alexander Sergeevich Bordyug
Keyword(s):  
Strain Gauge ◽  
Electromagnetic Interference ◽  
Oil And Gas ◽  
Fiber Optic ◽  
Electrical Equipment ◽  
Torque Control ◽  
Measuring System ◽  
Degree Of Protection ◽  
Fabry Perot ◽  
Fiber Optic System

The article considers the procedure of torque control, which is very popular in a wide variety of industries with many design features. In marine power engineering the problems of determining the forces, torque on the shaft and power are solved by means of torsiometers with torque sensors. The most widely used torque sensors are of capacitive, induction, strain gauge and photoelectric types. It has been stated that there are limitations in the process of torque control due to the susceptibility of systems to the electromagnetic interference, lack of a high degree of protection for electrical equipment and necessary recalibration. Fiber optic systems have found application in torque measurement systems in the oil and gas and aerospace industries. The use of such systems on ships is more expensive in comparison with the technologies used today, for example, the systems based on strain gauges. It has been proposed to use an inexpensive optical measuring system based on the Pound-Drever-Hall technique with using a foil-clad strain gauge and an aluminum torsion rod. There has been illustrated the system of torque control, the phase graphs for the Fabry-Perot resonator and the graph of the resonator transmission spectrum are presented, the reflection coefficient value is given. A method for measuring the phase of a reflected beam from a Fabry-Perot resonator is being considered, the injection current of a laser is modulated by means of an electric oscillator to generate side stripes in the electric field of a laser beam. The carried out studies and calculations contribute to improving the reliability of the coastal power system; the possibility of their use in marine electrical systems has been proved.

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