Results 231 to 240 of about 1,612,939 (283)

Fiber optic curvature sensor

IEEE SENSORS 2014 Proceedings, 2014
A fiber optic curvature sensor based on discrete Fiber Bragg gratings inscribed in a multi-core fiber is presented. The individual cores of the multi-core fiber are each interrogated by a custom-built spectrometer running at up to 20 kHz. They are interfaced with a custom-tapered combiner of single-core fibers fusion spliced to the multi-core fiber ...
Leyendecker, Patrick, Haslinger, Robert
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Fiber optic light sensor

Environmental Monitoring and Assessment, 2015
We describe a low-cost fiber optic sensor for measuring photosynthetically active radiation (PAR) in turbulent flow. Existing technology was combined in a novel way for probe development addressing the need for a small but durable instrument for use in flowing water. Optical components including fiber optics and a wide-spectrum light detector were used
Wayne, Chudyk, Kyle F, Flynn
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A fiber-optic temperature sensor

Automation and Remote Control, 2013
In this paper we demonstrate the feasibility of designing a fiber-optic temperature sensor based on the principles of low-coherent tandem interferometry; the sensitive element represents a plane-parallel plate produced from fused silica of thickness 500 µm (the corresponding measurement range is between 40 and 90°C).
Petr V. Volkov, Alexander V. Goryunov, A. Yu. Luk'yanov, A. D. Tertyshnik, M. V. Belikovich, V. V. Travkin   +5 more
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Fiber Optical Intensity Sensors

IEEE Journal on Selected Areas in Communications, 1983
Fiber optical intensity sensors are made of optical fibers connected to a miniaturized optical sensor which is based on either a mechanical light valve, a light scattering process, a photoemission or photoabsorption process, or the transmission property of the optical fiber itself.
Shi-Kay Yao, Charles K. Asawa
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Multimode optical fiber sensors

1995
Of the properties of light which can be conveniently modulated, phase and polarization information are immediately lost upon entering a multimode optical fiber. This leaves intensity as the only transmittable property available for use as a modulation sensitive parameter.
G. R. Jones, R. E. Jones, R. Jones
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Fiber-optical sensors as transducers

IGARSS 2003. 2003 IEEE International Geoscience and Remote Sensing Symposium. Proceedings (IEEE Cat. No.03CH37477), 2003
The paper considers a possibility of using fiber-optical sensors (FOS) as transducers. There are described and compared main advantages and disadvantages of analogue and pulse FOS. There are presenting results of estimating of metrological and quantitative precise opportunities of analog FOS.
Y. Savenko, P. Dem'yaneko, Y. Zinkovskiy, M. Prokof'ev, Yaroslav Savenko   +4 more
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Fiber-optic sensor for humidity

Optics Letters, 1989
A novel fiber-optic humidity sensor is described. It is based on reversible sorption of water from the ambient atmosphere in a porous thin-film interferometer that sits on the tip of a fiber. The sorbed water changes the refractive index of the thin films and thus the reflectivity of the interferometer; the resulting modulation of the reflected ...
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Optical Fiber Sensors in Medicine

SPIE Proceedings, 1984
Sensors of physiological parameters represent an important aspect of modem biomedical instrumentation and their use may result in a better diagnosis and better quality of health care.
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Polymers for Optical Fiber Sensors

2000
The design and realization of chemical sensors which are more and more reliable and ca- pable of continuous monitoring constitute a continuous challenge in the scientific world.
F Baldini, S Bracci
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Optical Fiber Sensors and Systems

1992
The subject of this text and the lecture is presentation of the fiber optic sensors and systems developed for robotics and different applications that exploit unique characteristics of optical fibers. Chapter 2 introduces briefly basics of fiber optics, constituting a background for the further discussion.
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