منابع مشابه
An Amateur Vertical Component Broadband Seismometer (Model MkXX)
A vertical component broadband (BB) seismometer, based on design ideas from numerous sources, was developed and fabricated by an amateur instrument builder in a home workshop using commonly available materials. The seismometer had a flat velocity response between 0.017-4 Hz, and sensitive enough to detect teleseismic events of magnitude 5.5 and greater from most places on earth.
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A number of third order nonlinear processes can occur in single-mode fibres and an 8 understanding of such phenomena is almost a prerequisite for actual lightwave-system designers. 9 In this paper we review the main limitations imposed by several nonlinear effects, namely the self10 and cross-phase modulation, four-wave mixing, stimulated Raman scattering and stimulated 11 Brillouin scattering,...
متن کاملFiber - Optic Sensing of Linear Thermal Expansion (RESEARCH NOTES)
The use of a LED fiber-optic sensor to measure displacement and linear thermal expansion is described. It has a sensitivity of about 0.6 mV/mm, a resolution of 1.25 mm, and a dynamic rang of 400 mm for displacement measurements. For thermal expansion, it shows a sensitivity of about 3.5 mV/C, and the experimental linear expansion values are in agreement with those calculated. The reported senso...
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In this paper, the set-up of a multi-mode fiber optic sensor for measuring glucose in aqueous solutions is investigated and evaluated. The basis of this sensor is based on the Fresnel Reflection. In this setup, a helium-neon laser is used as a light source, a fiber optic probe, photocell as detector and a digital multimeter. The statistical analysis of the recorded data shows a highly linear be...
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ژورنال
عنوان ژورنال: Photonic Sensors
سال: 2014
ISSN: 1674-9251,2190-7439
DOI: 10.1007/s13320-014-0173-4