Thematische Bibliographien / Fiber-optic cable

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Auswahl der wissenschaftlichen Literatur zum Thema „Fiber-optic cable“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 17. Februar 2022

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Zeitschriftenartikel zum Thema "Fiber-optic cable"

Abboud, Izz K., Shahir F. Nawaf und Mohammed H. Dervish. „Reduction the electric field effect generated by high voltage on fiber optic cables using metal shielding“. Bulletin of Electrical Engineering and Informatics 9, Nr. 1 (01.02.2020): 339–44. http://dx.doi.org/10.11591/eei.v9i1.1658.

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Because of the fiber optic cables have perfect resistant to weather and environmental effects they can be installed on or with transmission line towers for the power supply control and data communication. To avoid the damages of fiber optic cables, it is used shielded fiber optic cables. Due to the using of this shielding, the electric field that produced from transmission line will be effected .In this paper is studied and compared the influence of metal shielding of fiber-optic cable in the strong electric field which produced by a high voltage transmission line for various types of channel configuration. Based on the results obtained, the metal shielding of fiber optic cables will reduce the electric field strength that lead to good efficiency of communication through the optical cable.

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Khatimi, Husnul, Eka Setya Wijaya, Andreyan Rizky Baskara und Yuslena Sari. „Performance Comparison Between Copper Cables and Fiber Optic in Data Transfer on Banjarmasin Weather Temperature Conditions“. MATEC Web of Conferences 280 (2019): 05022. http://dx.doi.org/10.1051/matecconf/201928005022.

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Copper wire cable and fiber optic cable are two communication media that are widely used in building data communication networks in today’s modern era. For network administrators, choosing the right type of cable to build a network is a must. Air temperature is one of the external factors that can affect the performance of network equipment. This paper provides a comparative analysis of the differences in performance between the use of fiber optic cables and copper wire cables which are capable of transferring data of 1 Gigabit per second. Performance measurement analysis includes the ability to transfer data from both media such as latency, throughput, and packet loss. For testing latency and throughput is done by sending as many as 65,000 data 30 times for each media. Whereas for packet loss testing is done by sending 10,000 data within 1 minute using test bandwidth on the Mikrotik router. From the test results, it can be seen that there is an effect of temperature changes on the performance of copper wire cable and fiber optic cable. The higher the air temperature, the packet loss, and latency will increase. As for the throughput value, the temperature only affects the throughput value on fiber optic cable and does not affect throughput on the copper wire cable.

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Korchevsky, A. S., und L. V. Kolomiets. „MECHANICAL FIBER OPTIC CABLE“. Key title Zbìrnik naukovih pracʹ Odesʹkoï deržavnoï akademìï tehnìčnogo regulûvannâ ta âkostì -, Nr. 2(7) (2015): 68–72. http://dx.doi.org/10.32684/2412-5288-2015-2-7-68-72.

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Z, Andi Nurul Ulfawaty, und Fausiah Fausiah. „Analisis Redaman pada Jaringan Fiber to the Home (FTTH) Berteknologi Gigabit Passive Optical Network (GPON) di PT Telkom Makassar“. Ainet : Jurnal Informatika 1, Nr. 1 (22.08.2019): 21–27. http://dx.doi.org/10.26618/ainet.v1i1.2287.

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The development of telecommunications technology as a communication necessity at this time has been growing rapidly, needed a means of transmission media that is able to distribute information with large capacity and capable data transfer speeds. Implementing using Gigabit Passive Optical Network (GPON) technology, the Fiber to The Home (FTTH) service reaches the user to meet the speed of 2GBps. This study aims to identify the causes of increased attenuation or disturbance in FTTH. The method used in this study is to analyze the attenuation value of each core at the sites studied on the FTTH network at PT Telkom. The total attenuation value of fiber optic cables that are calculated from OLT to ONT must be within the specified reasonable limit of 15-28 dB. The caused of the increase in the attenuation value of fiber optic cables such as the number of splice / connections on each cable, and the occurrence of cable indentations above 45°. To overcome the attenuation value that exceeds the reasonable limit can be done by replacing the fiber cable with attenuation of 0.35dB to fiber cable with attenuation of 0.22 dB, so that the attenuation of the fiber optic cable is at the specified reasonable limit.

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de Jong, S. A. P., J. D. Slingerland und N. C. van de Giesen. „Fiber optic distributed temperature sensing for the determination of air temperature“. Atmospheric Measurement Techniques Discussions 7, Nr. 6 (23.06.2014): 6287–98. http://dx.doi.org/10.5194/amtd-7-6287-2014.

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Abstract. This paper describes a method to correct for the effect of solar radiation in atmospheric Distributed Temperature Sensing (DTS) applications. By using two cables with different diameters, one can determine what temperature a zero diameter cable would have. Such virtual cable would not be affected by solar heating and would take on the temperature of the surrounding air. The results for a pair of black cables and a pair of white cables were very good. The correlations between standard air temperature measurements and air temperatures derived from both colors had a high correlation coefficient (r2 = 0.99). A thin white cable measured temperatures that were close to air temperature. The temperatures were measured along horizontal cables but the results are especially interesting for vertical atmospheric profiling.

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Abramov, A. A., M. M. Bubnov, N. N. Vechkanov, A. V. Vlasov, A. N. Gur'yanov, Evgenii M. Dianov, V. P. Inozemtsev et al. „Frost-resistant fiber-optic cable“. Soviet Journal of Quantum Electronics 18, Nr. 1 (31.01.1988): 147–48. http://dx.doi.org/10.1070/qe1988v018n01abeh011239.

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de Jong, S. A. P., J. D. Slingerland und N. C. van de Giesen. „Fiber optic distributed temperature sensing for the determination of air temperature“. Atmospheric Measurement Techniques 8, Nr. 1 (15.01.2015): 335–39. http://dx.doi.org/10.5194/amt-8-335-2015.

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Abstract. This paper describes a method to correct for the effect of solar radiation in atmospheric distributed temperature sensing (DTS) applications. By using two cables with different diameters, one can determine what temperature a zero diameter cable would have. Such a virtual cable would not be affected by solar heating and would take on the temperature of the surrounding air. With two unshielded cable pairs, one black pair and one white pair, good results were obtained given the general consensus that shielding is needed to avoid radiation errors (WMO, 2010). The correlations between standard air temperature measurements and air temperatures derived from both cables of colors had a high correlation coefficient (r2=0.99) and a RMSE of 0.38 °C, compared to a RMSE of 2.40 °C for a 3.0 mm uncorrected black cable. A thin white cable measured temperatures that were close to air temperature measured with a nearby shielded thermometer (RMSE of 0.61 °C). The temperatures were measured along horizontal cables with an eye to temperature measurements in urban areas, but the same method can be applied to any atmospheric DTS measurements, and for profile measurements along towers or with balloons and quadcopters.

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Zhang, Cheng-Cheng, Hong-Hu Zhu, Su-Ping Liu, Bin Shi und Gang Cheng. „Quantifying progressive failure of micro-anchored fiber optic cable–sand interface via high-resolution distributed strain sensing“. Canadian Geotechnical Journal 57, Nr. 6 (Juni 2020): 871–81. http://dx.doi.org/10.1139/cgj-2018-0651.

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Distributed fiber optic sensing (DFOS) is gaining increasing interest in geotechnical monitoring. By using soil-embedded fiber optic cables, strain profiles as well as deformation patterns of geotechnical infrastructures can be captured. Probing the fiber optic cable–soil interfacial behavior is vital to the advancement of DFOS-based geotechnical monitoring and our understanding of the soil–inclusion interaction mechanism. To this aim, laboratory pullout tests were performed to investigate the progressive failure of the interface between micro-anchored cables and the surrounding sand. High-resolution strain profiles recorded using Brillouin optical time-domain analysis (BOTDA) not only elucidated the influence of anchorage on strain measurements, but also allowed the classical soil–inclusion interaction problem to be studied in detail. Interfacial shear stresses calculated from step-like strain profiles provided clear evidence of the contribution of each micro-anchor to the pullout resistance. The cable–soil contact is a combination of overall bonding and point fixation depending on the level of mobilized interfacial shear stress, and therefore the validity of measured strains is correlated to a three-stage process of interface failure. This study also shows that installing heat-shrink tubes on the fiber optic cable is a rapid, low-cost, effective approach to make an anchored DFOS system for deformation monitoring of earth structures.

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Yanuary, Tio Hanif, und Lita Lidyawati. „Analisis Link Budget Penyambungan Serat Optik Menggunakan Optical Time Domain Reflectometer AQ7275“. Jurnal Teknik Elektro 10, Nr. 1 (20.06.2018): 36–40. http://dx.doi.org/10.15294/jte.v10i1.13996.

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An optical fiber is a high-speed telecommunication transmission medium. Principally, an optical fiber is made of a very fine glass fiber material, which is able to transmit light waves using light reflection method on the surface of the fiber optics core. An underground installation of the fiber optics makes this device robust from external interferences. However, the fiber optic cable performance should always be checked to maintain performance during data transmission process. One way to test fiber optics cable performance is by using an Optical Time - Domain Reflectometer (OTDR) device. This device sends a light wave from one point of the fiber optics cable. The light wave then returns when reaching the other point of the fiber optic cable while carrying some measurement parameters especially the physical length and attenuation of a fiber optic cable. The evaluation of the fiber optics cable performance requires the preparation, installation, and configuration of the OTDR. In this paper, we conducted evaluation on the performances of fiber optics cable. The data generated by the performed evaluation indicated an occurring attenuation on the fiber optics cable along 64.402 km of its lengths.

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Kim, Kun-Woo, Jae-Wook Lee, Jin-Seok Jang, Joo-Young Oh, Ji-Heon Kang, Hyung-Ryul Kim und Wan-Suk Yoo. „Dynamic load applied to shear pin and motion prediction of flexible hose“. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 231, Nr. 22 (10.08.2016): 4172–85. http://dx.doi.org/10.1177/0954406216663781.

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A flexible hose that is unwound along with fiber-optic cables from a mother ship helps prevent interference with the mother ship during the unwinding of the fiber-optic cable. Because the density of fiber-optic cables is close to the fluid density, if there is no flexible hose, the fiber-optic cable is more likely to interfere with the mother ship because of the motion of underwater vehicles or mother ships. Hence, it is necessary to prevent the interference of fiber-optic cables by using flexible hoses made of stainless steel. Flexible hoses unwound as an underwater vehicle moves are coupled to the vehicle by shear pins, and once all flexible hoses are unwound, the underwater vehicle continues to move forward as the pins fracture. Here, a dynamic load applied on the shear pin for connection in the early stages of the unwinding of the flexible hose is an important factor that controls the position, which should be accurately predicted, prior to the motion of the underwater vehicle. Further, it is essential that the shear pin of the connection part be designed to fracture under the selected load so that underwater vehicle can continue to move forward as the pin breaks. In this study, analysis results based on loading information measured in real experiments were compared and verified, and based on the findings, an analytical model that can predict loads applied on the shear pin was developed.

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Dissertationen zum Thema "Fiber-optic cable"

Dorfman, David S., und Frank A. III Strom. „An optimization model for fiber-optic cable installation aboard naval vessels“. Monterey, California: Naval Postgraduate School, 2013. http://hdl.handle.net/10945/34657.

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Approved for public release; distribution is unlimited
The purpose of this thesis is to develop a cost-optimization model that will help reduce the installation cost of fiber-optic cable onboard new construction naval vessels. The data used to develop the optimization models were collected from visits to naval shipyards and interviews with both fiber-optic cable engineers and installation experts at shipyards, as well as MIL-PRF 85045F and cable manufacturers specification sheets. The information compiled from these sources was used to develop a cable measure of effectiveness that could be inputted into simulation software. Simulations were run to examine the effect of cable quality, quantity, and labor rate in order to select the best fiber-optic cable for installation based on cost risk. Depending on the specifics of a fiber-optic cable run, cable choice can vary, but in general the cable with the highest quality results in a lower risk of cost overruns and is the most cost effective choice over the long run. Program managers and shipyards can easily implement the models developed in this thesis into their current practices for fiber-optic cable procurement and installation aboard U.S. naval vessels.

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Peill, Nicola Joy Hoffmann Michael R. Hoffmann Michael R. „Fiber-optic bundled array cable reactors for heterogeneous photocatalysis and waste stream remediation /“. Diss., Pasadena, Calif. : California Institute of Technology, 1997. http://resolver.caltech.edu/CaltechETD:etd-01142008-082303.

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TURNER, WILLIAM C. „ON IMPLEMENTATION OF REMOTELY OPERATED UNMANNED TELEMETRY TRACKING SYSTEMS WITH FIBER OPTIC CABLE“. International Foundation for Telemetering, 1991. http://hdl.handle.net/10150/612123.

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International Telemetering Conference Proceedings / November 04-07, 1991 / Riviera Hotel and Convention Center, Las Vegas, Nevada
The high cost of real estate in countries with expanding populations, coupled with the long range capability of modern weapon systems has resulted in the need to expand test ranges to remote desert areas or areas over sea water. In order to preclude the cost of duplicating existing test centers, and the high cost of manually operating ground tracking stations, the requirement for unmanned remotely controlled telemetry tracking systems has emerged. Until recently, implementation of such systems has been trivial because the microwave link had sufficient bandwidth. However, with the advent of multi-TM bands, encrypted T.V. video and dual-polarization diversity requirements, implementation of unmanned remote stations has become cumbersome, expensive and less reliable. For instance, a pair of dedicated computers are now required to remotely control as many as eight receivers and four diversity combiners. This paper analyzes the advantages, limitations and feasibility of remotely controlling a wide-band antenna/pedestal with the restriction that all frequency downconverters, receivers, and combiners be located at the test center where they can be manually controlled and monitored, and more readily maintained. A comparison is made between the use of coaxial cable and fiber-optic cable as short-haul (0.25 to 25 kilometers) RF transmission media.

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Grannis, Betsy M. „Impacts of Mobile Fishing Gear and a Buried Fiber-Optic Cable on Soft-Sediment Benthic Community Structure“. Fogler Library, University of Maine, 2005. http://www.library.umaine.edu/theses/pdf/GrannisBM2005.pdf.

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Nenadovic, Mateja. „The Effects of Bottom-Tending Mobile Fishing Gear and Fiber-Optic Cable Burial on Soft-Sediment Benthic Community Structure“. Fogler Library, University of Maine, 2009. http://www.library.umaine.edu/theses/pdf/NenadovicM2009a.pdf.

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Rumplík, Martin. „Návrh optické sítě pro spojení bytových domů v Kojetíně“. Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2011. http://www.nusl.cz/ntk/nusl-223154.

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The subject of this diploma's thesis is to create a design of a fiber optic network, which will allow an access to broadband internet connection for households living in blocks of flats in Kojetín. For this purpose the best technologies will be compared by analysis and the new network topology will be designed. The investor is a civic association Cyrilek.net that provides a wireless internet at this area. The best solution will be selected on the basis of financial and technical analysis and the investment will be calculated including its return. This innovation not only give people a really fast internet connection, but also the possibility of other services such as IPTV or VoIP.

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Plodková, Zuzana. „Posouzení spolehlivosti procesu balení optických kabelů“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443156.

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The diploma thesis deals with the assessment of the reliability of processes at the packaging center in the company CommScope Czech Republic s.r.o. The first part of the work is research about options for quality management using ISO 9000 standards, but also TQM approaches. At the same time, methods and analytical techniques are discussed, which will be further used in the practical part of this thesis. The following section introduces CommScope Inc. and its main product - optical fiber. The practical part contains an introduction to the packaging center and its processes, it also describes the analysis of the reliability of the original state and proposals for corrective measures that were designed within the Kaizen event. The rest of the work is then devoted to the implementation of the proposed changes and their economic assessment. Finally, an evaluation of the methods used, the results achieved and other recommendations are given.

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Nedoma, Jakub. „Vliv samonosného optického kabelu na mechaniku venkovního vedení VN“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442472.

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This thesis is focused on assessing the impact of retrofitting dielectric All Dielectric Self-Supporting Cable (ADSS) to existing MV overhead line. This type of optical cable is a means of future strengthening of the communication infrastructure of the distribution network. However, its mechanical properties are significantly different from the properties ACSR cable, due to which its installation can be problematic in terms of meeting the requirements of the PNE 33 3301 standard. In practical part, this work deals with the design of the ADSS installation on the existing MV line and the determination of its impact based on the assessment of the results of this design.

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Chittenden, Albert-Bruce. „Extending OWns to include protection functionality“. Diss., University of Pretoria, 2005. http://hdl.handle.net/2263/23796.

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The objective of this dissertation is to enhance the functionality of an existing simulation package that is used to simulate fiber optic networks. These enhancements include the capability to simulate protection mechanisms following link failure, which is a necessity in real-world optical networks to ensure the continued flow of information following a failure in a part of the network. The capability for network traffic to choose from additional paths is also an addition to the software. The enhanced, as well as the original simulation software, are open source: this allows anyone to freely modify and improve the source code to suit his or her requirements. This dissertation will focus on mesh-based optical network topologies, which are commonly found in regional optical backbone networks, but which are also increasingly found in metropolitan areas. The regional networks all make use of wavelength division multiplexing (WDM), which consists of putting multiple different wavelengths of light on the same physical fiber. A single fiber breakage will therefore disrupt multiple fiber-optic connections. A fiber-optic network designer has to satisfy various conflicting requirements when designing a network: it must satisfy current and predicted future traffic requirements, it must be immune to equipment failure, but it must also be as inexpensive as possible. The network designer therefore has to evaluate different topologies and scenarios, and a good network simulator will provide invaluable assistance in finding an optimal solution. Protection and restoration need to be looked at in conjunction with routing and wavelength assignment (RWA), to ensure that resources in a network are used at maximum efficiency. Connection restoration time will also be looked at: this should be minimised to ensure minimal network downtime and ensuing loss of revenue. The chosen alternate connection path should also be as short as possible to minimise use of resources and maximise the carrying capacity of the network. Blocking probability (the inability to establish a connection due to a congested network) is a crucial factor and is also investigated. The topologies investigated in this dissertation consist of various mesh based real-world regional WDM fiber-optic networks. The impact of various link failures, the addition of additional alternate paths, as well as the effect of a protection mechanism on these topologies are also investigated. The proposed goals were all successfully achieved. The capability of simulating single as well as multiple link failures was introduced to the simulation package. The blocking probability of various network topologies was compared to each other in the presence of link failures. Success was also achieved in the introduction of a third alternate path to the simulation package.
Dissertation (MEng(Electronic))--University of Pretoria, 2005.
Electrical, Electronic and Computer Engineering
unrestricted

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Ee, Chai Chuan. „The feasibility study of implementing a fiber optic local area network in software metrics laboratory in Ingersoll 158“. Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Mar%5FEe.pdf.

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Thesis (M.S. in Information Technology Management)--Naval Postgraduate School, March 2004.
Thesis advisor(s): Norman F. Schneidewind. Includes bibliographical references (p. 51). Also available online.

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Bücher zum Thema "Fiber-optic cable"

Africa Centre for Open Governance. Unlimited bandwidth?: Governance & submarine fiber-optic cable initiatives in Kenya. Nairobi, Kenya: AfriCOG, 2010.

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Africa Centre for Open Governance. Unlimited bandwidth?: Governance & submarine fiber-optic cable initiatives in Kenya. Nairobi, Kenya: AfriCOG, 2010.

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Pearson, Eric R. The complete guide to fiber optic cable system installation. Albany: Delmar Publishers, 1997.

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Salisbury, Stan. Alcatel Telecommunications Cable, Roanoke, Virginia. [Atlanta, Ga.?]: U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, 1997.

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Dean, Stoneback, Hrsg. Broadband return systems for hybrid fiber/coax cable TV networks. Upper Saddle River, NJ: Prentice Hall PTR, 1998.

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Digital and analog fiber optic communications for CATV and FTTx applications. Bellingham, Wash., USA: SPIE, 2008.

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Office, United States Bureau of Land Management Salt Lake District. Williams Telecomunications [sic] Company fiber optic cable project: Cheyenne Junction to Los Angeles : environmental assessment. Place of publication not identified]: Woodward-Clyde Consultants, 1986.

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Moore, Dames &. Environmental assessment of the US Sprint Communications Company fiber optic cable project, Rialto, California to Las Vegas, Nevada. Riverside, Calif: Bureau of Land Management, California Desert District, 1988.

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Elliott, Barry J. Fiber optic cabling. 2. Aufl. Oxford: Newnes, 2002.

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Jim, Hayes. Fiber optic technician's manual. Albany: Delmar Publishers, 1996.

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Buchteile zum Thema "Fiber-optic cable"

Weik, Martin H. „fiber optic cable“. In Computer Science and Communications Dictionary, 584. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_6913.

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Yan, Jun, Xipeng Ying, Zhixun Yang und Haitao Hu. „Fiber-Optic Cable“. In Encyclopedia of Ocean Engineering, 1–5. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-10-6963-5_149-1.

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Weik, Martin H. „proofed fiber optic cable“. In Computer Science and Communications Dictionary, 1355. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_14938.

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Weik, Martin H. „bidirectional fiber optic cable“. In Computer Science and Communications Dictionary, 116. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_1502.

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Weik, Martin H. „aerial fiber optic cable“. In Computer Science and Communications Dictionary, 33. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_410.

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Weik, Martin H. „duct fiber optic cable“. In Computer Science and Communications Dictionary, 467. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_5669.

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Weik, Martin H. „special fiber optic cable“. In Computer Science and Communications Dictionary, 1626–27. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_17830.

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Weik, Martin H. „station fiber optic cable“. In Computer Science and Communications Dictionary, 1661. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_18193.

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Weik, Martin H. „fiber optic breakout cable“. In Computer Science and Communications Dictionary, 583. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_6908.

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Weik, Martin H. „fiber optic cable assembly“. In Computer Science and Communications Dictionary, 584. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_6914.

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Konferenzberichte zum Thema "Fiber-optic cable"

Lawless, Sean, und Ravi Gorthala. „Development of a Fiber-Optic Hybrid Day-Lighting System for Mobile Shelter Applications“. In ASME 2017 11th International Conference on Energy Sustainability collocated with the ASME 2017 Power Conference Joint With ICOPE-17, the ASME 2017 15th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2017 Nuclear Forum. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/es2017-3563.

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This paper discusses a Fiber-Optic Hybrid Day-Lighting system that can cut energy consumed by buildings for lighting significantly. This system is designed for mobile applications such as military shelters. The system is comprised of two primary components: the solar collector and the Solar Hybrid Lighting Fixture. The first component, the solar collector, consists of a housing, structural stand, a dual axis tracking system, Fresnel Lenses, secondary optics, and fiber-optic cables. The collector is integrated into a dual-axis tracker, which is then mounted on a tripod. The tripod can be staked into the ground and weighed down to protect the system from any wind loading and the collector height can be adjusted so that there is no shading of the collector by nearby structures. The collector with an aluminum housing holds eight 10-inch diameter Fresnel Lenses that focus sunlight onto eight secondary optics based on TIR (total internal reflection) which filter UV/IR and deliver uniform light to the fiber-optic cables. The secondary optic is coupled to the fiber-optic cable with index matching gel so that Fresnel reflection losses are minimized. The solar collector tracks the sun’s movement through the day with a dual-axis tracker (azimuth/tilt), ensuring the light is concentrated into the fiber-optic cables. The optics has been designed to have a high half-acceptance of 1.75° and can accommodate a tracking accuracy of 1.50° or better. The opposite end of the fiber-optic cable attaches to the second part of the Day-Lighting system, the Solar Hybrid Light Fixture (SHLF). The SHLF comprises of two lighting systems: 1) a solar fiber-optic system and 2) an LED system. The fiber-optic cable is coupled to an acrylic light diffusing rod that evenly delivers the light into the room. During sunny periods, depending on the length of the cable, solar fiber-optic lighting could provide full illumination of the space. In order to keep lighting uniform even during fluctuations of the light output from the sun during cloudy periods, the LED portion of the light will allow for constant lighting at a lower power consumption. The LED lighting has dimming capabilities due to a photosensor that regulates the light output of the LEDs based on how much solar light is delivered by the fiber-optic cables. On a typical sunny day with an overall concentration factor of ∼400 from the Fresnel Lens system to the optical fiber, it is possible to generate an output of 2,000 lumens with a 20-foot cable, with each fiber-optic cable experiencing a 1% loss of light per foot of cable. The LED portion of the hybrid light fixture produces about 1,800 lumens as well.

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Tsukamoto, Masayoshi, Koji Seo, Eiji Konda, Yutaka Hoshino und Noboru Okada. „Development of Low Friction Indoor Cable“. In National Fiber Optic Engineers Conference. Washington, D.C.: OSA, 2009. http://dx.doi.org/10.1364/nfoec.2009.nwc4.

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Bulyakulov, Rifkat R. „Materials for fiber-optic cable“. In 2014 IEEE NW Russia Young Researchers in Electrical and Electronic Engineering Conference (ElConRusNW). IEEE, 2014. http://dx.doi.org/10.1109/elconrusnw.2014.6839193.

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Tsukamoto, Masayoshi, Eiji Konda, Yutaka Hoshino und Noboru Okada. „Development of Novel Cicada-Resistant Optical Drop Cable“. In National Fiber Optic Engineers Conference. Washington, D.C.: OSA, 2010. http://dx.doi.org/10.1364/nfoec.2010.nthb1.

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Agata, A., und Y. Horiuchi. „Suboptimal ODN Design Algorithm for Minimizing Cable Deployment Cost“. In National Fiber Optic Engineers Conference. Washington, D.C.: OSA, 2011. http://dx.doi.org/10.1364/nfoec.2011.jwa018.

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McDermott, Brian G., Mark W. Beranek und Michael J. Hackert. „Air vehicle fiber optic cable infrastructure“. In 2008 IEEE Avionics, Fiber-Optics and Photonics Technology Conference (AVFOP). IEEE, 2008. http://dx.doi.org/10.1109/avfop.2008.4653154.

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Beranek, Mark, Joseph Ahadian, Charles Kuznia und Bruce Pregger. „Broken aerospace fiber optic cable characterization“. In 2008 IEEE Avionics, Fiber-Optics and Photonics Technology Conference (AVFOP). IEEE, 2008. http://dx.doi.org/10.1109/avfop.2008.4653155.

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Lindholm, Eric A. „Evolution of aerospace fiber-optic cable“. In 2009 IEEE Avionics, Fiber-Optics and Phototonics and Photonics Technology Conference (AVFOP). IEEE, 2009. http://dx.doi.org/10.1109/avfop.2009.5342638.

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Soodak, C., G. Gould und L. McBee. „A Fiber Optic Logging Cable System“. In Offshore Technology Conference. Offshore Technology Conference, 1985. http://dx.doi.org/10.4043/4977-ms.

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Szustakowski, Mieczyslaw, Marek Zyczkowski, Wieslaw M. Ciurapinski, Marcin Kondrat und Norbert Palka. „Fiber sensors for optic cable monitoring“. In SPIE Proceedings, herausgegeben von Zbigniew Jaroszewicz, Ewa Powichrowska und Mariusz Szyjer. SPIE, 2004. http://dx.doi.org/10.1117/12.577169.

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Berichte der Organisationen zum Thema "Fiber-optic cable"

Belarde, E. Establishing a low-power fiber optic cable facility. Final report. Office of Scientific and Technical Information (OSTI), Mai 1994. http://dx.doi.org/10.2172/10170268.

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Klein, Randal, und Kay Winn. Environmental Assessment: Proposed Fiber Optic Cable, Wendover Radar Site, Wendover, Utah. Fort Belvoir, VA: Defense Technical Information Center, März 2005. http://dx.doi.org/10.21236/ada444940.

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Curtiss, J. A., und J. R. Jahelka. Development of a cable reel development system using a rotary joint for kilometer lengths of two-fiber multi-mode fiber optic cable. Office of Scientific and Technical Information (OSTI), August 1995. http://dx.doi.org/10.2172/113692.

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Quinn, Meghan. Geotechnical effects on fiber optic distributed acoustic sensing performance. Engineer Research and Development Center (U.S.), Juli 2021. http://dx.doi.org/10.21079/11681/41325.

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Distributed Acoustic Sensing (DAS) is a fiber optic sensing system that is used for vibration monitoring. At a minimum, DAS is composed of a fiber optic cable and an optic analyzer called an interrogator. The oil and gas industry has used DAS for over a decade to monitor infrastructure such as pipelines for leaks, and in recent years changes in DAS performance over time have been observed for DAS arrays that are buried in the ground. This dissertation investigates the effect that soil type, soil temperature, soil moisture, time in-situ, and vehicle loading have on DAS performance for fiber optic cables buried in soil. This was accomplished through a field testing program involving two newly installed DAS arrays. For the first installation, a new portion of DAS array was added to an existing DAS array installed a decade prior. The new portion of the DAS array was installed in four different soil types: native fill, sand, gravel, and an excavatable flowable fill. Soil moisture and temperature sensors were buried adjacent to the fiber optic cable to monitor seasonal environmental changes over time. Periodic impact testing was performed at set locations along the DAS array for over one year. A second, temporary DAS array was installed to test the effect of vehicle loading on DAS performance. Signal to Noise Ratio (SNR) of the DAS response was used for all the tests to evaluate the system performance. The results of the impact testing program indicated that the portions of the array in gravel performed more consistently over time. Changes in soil moisture or soil temperature did not appear to affect DAS performance. The results also indicated that time DAS performance does change somewhat over time. Performance variance increased in new portions of array in all material types through time. The SNR in portions of the DAS array in native silty sand material dropped slightly, while the SNR in portions of the array in sand fill and flowable fill material decreased significantly over time. This significant change in performance occurred while testing halted from March 2020 to August 2020 due to the Covid-19 pandemic. These significant changes in performance were observed in the new portion of test bed, while the performance of the prior installation remained consistent. It may be that, after some time in-situ, SNR in a DAS array will reach a steady state. Though it is unfortunate that testing was on pause while changes in DAS performance developed, the observed changes emphasize the potential of DAS to be used for infrastructure change-detection monitoring. In the temporary test bed, increasing vehicle loads were observed to increase DAS performance, although there was considerable variability in the measured SNR. The significant variation in DAS response is likely due to various industrial activities on-site and some disturbance to the array while on-boarding and off-boarding vehicles. The results of this experiment indicated that the presence of load on less than 10% of an array channel length may improve DAS performance. Overall, this dissertation provides guidance that can help inform the civil engineering community with respect to installation design recommendations related to DAS used for infrastructure monitoring.

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MacDougall, Trevor W., Yi Yang und Paul E. Sanders. Final Report: Integrated Fiber Optic Sensors for Bi-Modal Fault Detection and Dynamic Cable Rating. Office of Scientific and Technical Information (OSTI), Januar 2019. http://dx.doi.org/10.2172/1490224.

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Challener, William. Multipoint Pressure and Temperature Sensing Fiber Optic Cable for Monitoring CO₂ Sequestration. Office of Scientific and Technical Information (OSTI), Februar 2015. http://dx.doi.org/10.2172/1170208.

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Iyer, Ananth V., Samuel Labi, Steven Dunlop, Thomas Brady Jr. und Eki Amijaya. Cost and Benefit Analysis of Installing Fiber Optics on INDOT Projects. Purdue University, 2020. http://dx.doi.org/10.5703/1288284317131.

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The Indiana Department of Transportation (INDOT) is tasked with the stewardship of billions of dollars’ worth of public invested highway infrastructure. Not only does INDOT continually seek design and operational policies that foster cost effective project delivery and procurement, they also seek opportunities for revenue generation. Due to population growth and the increased demand for online connectivity and global information transmission, the fiber-optic cable industry has experienced rapid growth over the past few years. Information and communication technology (ICT) companies have long sought to achieve higher economic productivity by installing fiber-optic cables in the right of way (ROW) of access-controlled highways. Based on these developments, an experiment was conducted to measure the economic impact in Indiana. To determine this impact, a database was developed by compartmentalizing the analysis into (1) GDP per county per industry type, (2) the natural growth of GDP as a factor, and (3) the extent of contribution of broadband in the growth of GDP. A general formula was developed to incorporate the adjusted median income on both the industry and county levels, along with a broadband contribution factor. This formula was employed to determine policies that can produce optimum economic outcome by leveraging the Pareto method.

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Garrity, John, und Arndt Husar. Digital Connectivity and Low Earth Orbit Satellite: Constellations Opportunities for Asia and the Pacific. Asian Development Bank, April 2021. http://dx.doi.org/10.22617/wps210156-2.

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Satellite communication plays an important role in the global connectivity ecosystem. It connects rural and remote populations, provides backhaul connectivity to mobile cellular networks, and enables rapid communications for emergency and disaster responses. Low Earth orbit constellations may prove to be transformational to the connectivity landscape based on their global coverage and their suitability for areas not served by fiber optic cable networks. The Asian Development Bank’s developing member countries are well placed to benefit from this expansion of internet connectivity. It will be particularly valuable for small island developing states and landlocked developing countries with limited international bandwidth internet.

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Huisman, F. Tests of Fiber Optic Cables at 300 and 4.2 K. Office of Scientific and Technical Information (OSTI), Februar 2004. http://dx.doi.org/10.2172/826720.

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Conroy, Patrick J., Carlos A. Latorre und Lillian D. Wakeley. Installation of Fiber-Optic Cables Under Flood-Protection Structures Using Horizontal Directional Drilling Techniques. Fort Belvoir, VA: Defense Technical Information Center, Mai 2002. http://dx.doi.org/10.21236/ada404033.

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