Results 211 to 220 of about 17,602 (261)
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A fiber-optic temperature sensor
Automation and Remote Control, 2013In 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 +5 more
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Fiber Optical Intensity Sensors
IEEE Journal on Selected Areas in Communications, 1983Fiber 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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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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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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Annals of Biomedical Engineering, 1983
The theory, construction and performance of a catheter tip optical PCO2 probe is described. The sensor, called the Opticap, is made with plastic fiber optics. One fiber carries light to the sensitive tip which is a silicone rubber tube 0.6 mm dia. X 1.0 mm long filled with a phenol red-KHCO3 solution.
G G, Vurek +2 more
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The theory, construction and performance of a catheter tip optical PCO2 probe is described. The sensor, called the Opticap, is made with plastic fiber optics. One fiber carries light to the sensitive tip which is a silicone rubber tube 0.6 mm dia. X 1.0 mm long filled with a phenol red-KHCO3 solution.
G G, Vurek +2 more
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2017
So far, I have concentrated on how optical fibers are used for communications. However, fiber optics also have other important uses. This chapter will show how fibers are used as sensors. Fiber sensors work in a variety of ways, sometimes just using fibers to deliver light, other times monitoring changes induced in light transmission caused by external
Banshi Dhar Gupta +2 more
+5 more sources
So far, I have concentrated on how optical fibers are used for communications. However, fiber optics also have other important uses. This chapter will show how fibers are used as sensors. Fiber sensors work in a variety of ways, sometimes just using fibers to deliver light, other times monitoring changes induced in light transmission caused by external
Banshi Dhar Gupta +2 more
+5 more sources
Fiber-optical sensors as transducers
IGARSS 2003. 2003 IEEE International Geoscience and Remote Sensing Symposium. Proceedings (IEEE Cat. No.03CH37477), 2003The 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 +4 more
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1980 Ultrasonics Symposium, 1980
Fiber optic sensors appear to offer significant performance advantages when compared to conventional acoustic, magnetic, and rotation sensors. This paper will review the state of the art in this newly developing technology area.
T. G. Giallorenzi +2 more
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Fiber optic sensors appear to offer significant performance advantages when compared to conventional acoustic, magnetic, and rotation sensors. This paper will review the state of the art in this newly developing technology area.
T. G. Giallorenzi +2 more
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An intrinsic fiber optic temperature sensor
IMTC/98 Conference Proceedings. IEEE Instrumentation and Measurement Technology Conference. Where Instrumentation is Going (Cat. No.98CH36222), 2000This paper deals with a new fiber optic temperature sensor. The relationship between temperature and refractive index of a "reference" liquid is used to obtain a sensing fiber output that follows temperature changes of an external fluid with very low response time.
Giovanni Betta, Antonio Pietrosanto
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Fiber-optic sensor for humidity
Optics Letters, 1989A 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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2013
Fiber optic technology started in 1970’s, for long distance telecommunications, and it has experienced an exponential growth during the last four decades. Sensing applications are a small spin-off from this technology, taking profit of developments done for optoelectronic components and concepts. Optical fibers are cylindrical dielectric waveguides for
J. Alfredo Güemes +1 more
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Fiber optic technology started in 1970’s, for long distance telecommunications, and it has experienced an exponential growth during the last four decades. Sensing applications are a small spin-off from this technology, taking profit of developments done for optoelectronic components and concepts. Optical fibers are cylindrical dielectric waveguides for
J. Alfredo Güemes +1 more
openaire +1 more source