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Wide-range fiber-optic strain sensor
Applied Optics, 1984A wide-range strain sensor which utilizes optical fiber as the transducing element is reported. This device differs from the well-known microbend type sensor in that a roller chain is used to impose constant curvature bends on the fiber, rather than a corrugated plate which imposes sinusoidal bends in the microbend sensors.
D C, Marvin, N A, Ives
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Optical diffraction strain sensor
SPIE Proceedings, 2004Moire interferometry is a high sensitivity tool for deformation measurement. Micro-moire interferometry (MMI) extends this into the micron-level spatial resolution. However, the information available in both cases is in the form of a deformation map, which needs to be differentiated to determine strains.
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2003
The need to measure strain occurs in a variety of industries, ranging from aerospace design to civil engineering to traffic sensors to robotic manipulators. Measuring the deflection of a structure gives design engineers data needed to build safer and more efficient systems. Typical measurements can be approximately an inch of deflection over a 100 foot
Eric Udd +3 more
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The need to measure strain occurs in a variety of industries, ranging from aerospace design to civil engineering to traffic sensors to robotic manipulators. Measuring the deflection of a structure gives design engineers data needed to build safer and more efficient systems. Typical measurements can be approximately an inch of deflection over a 100 foot
Eric Udd +3 more
openaire +1 more source