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This paper discusses the command shaping technique for suppression of end-point oscillations (residual vibrations) of a circular cylinder transported under-water. Experimentation has been carried out to study the dynamic response of the cylinder by transporting it in still water following a straight path with a constant velocity, showing that the cylinder exhibits end-point oscillations at the target...
Airborne and space-borne imaging systems are often limited in resolution by image degradation resulting from mechanical vibrations during image exposures. A new image stabilization method using digital motion estimation and micro-mechanical compensation is presented. Motion estimation is accomplished by an auxiliary high-speed camera using modified real-time digital image stabilization (DIS) algorithm...
We present the use of swept wavelength interferometry for distributed fiber-optic temperature measurements in a nuclear reactor. The sensors consisted of 2-m segments of commercially available, single mode optical fibers. The interrogation technique is based on measuring the spectral shift of the intrinsic Rayleigh backscatter signal along the optical fiber and converting the spectral shift to temperature.
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