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Fiber optics
| Глоссарий по системам видеоохраны и видеонаблюдения |
- Волоконная оптика
- Also called optical fibers or optical fiber bundles. an assemblage of transparent glass fibers all bundled together parallel to one another. the length of each fiber is much greater than its diameter. this bundle of fibers has the ability to transmit a picture from one of its surfaces to the other around curves and into otherwise inaccessible places with an extremely low loss of definition and light, by a process of total reflection.
- A technology designed to transmit signals in the form of pulses of light. fiber optic
- Communications medium based on a laser transmission that uses a glass or plastic fiber which carries light to transmit video, audio, or data signals. each fiber can carry from 90 to 150 megabits of digital information per second or 1,000 voice glossary/32 channels. transmission can be simplex (one-way) or duplex (two-way) voice, data, and video service.
- A technology designed to transmit signals in the form of pulses of light. fiber optic cable is noted for its properties of electrical isolation and resistance to electrostatic and electromagnetic interference.
- The links used for voice, video, data, medical, sensing, and illumination applications. all use optical fibers to transmit or receive optical signals or power
- A system of flexible quartz or glass fibers that use total internal reflection (tir) to pass light through thousands of glancing (total internal) reflections.
- Optics based on optical fibers
- A flexible bundle of light-transmitting fibers used for medical, scientific, and difficult-access situations.
- Guiding light by refraction, the principle that makes fiber optics possible, was first demonstrated by french scientists in the 1840s, and in 1870 englishman john tyndall discovered that light uses internal reflection to follow a specific path. practical applications of this principle appeared early in the twentieth century, but it was not until the late 1950s that modern optical fibers appeared. unlike copper wire, an optical fiber cable is not electrical in nature, carrying information from one point to another in the form of light. a basic system consists of a transmitting device, to generate the light signal; an optical fiber cable, which carries the light; and a receiver, to accept the transmitted signal. fiber optic networks are more powerful and versatile than traditional copper-wire networks, operating at very high speeds and providing high bandwidth. during the second half of the twentieth century, this technology experienced a phenomenal rate of progress, and the u.s. military moved quickly to install fiber optic networks that provide increased information capability to users of high-tech weaponry, command and control systems, global positioning systems, inventory/transportation management programs, personnel/payroll record-keeping, and medical apparatus. fiber optic systems, using floating radio antennae, provide submerged submarines with twoway communications for the first time in history, while similar technology allows them to deploy a floating optical fiber periscope from well below conventional periscope depth.
- Волоконно-оптический кабель; волоконная оптика
- A technology for the transmission of light beams along optical fibers. a light beam, such as that produced in a laser, can be modulated to carry information. because light has a higher frequency on the electromagnetic spectrum than other types of radiation, such as radio waves, a single fiber-optic channel can carry significantly more information than most other means of information transmission. optical fibers are thin strands of glass or other transparent material, with dozens or hundreds of strands housed in a single cable. optical fibers are essentially immune to electromagnetic interference.
- A technology that transmits infrared and visible light frequencies through strands of glass or plastic fiber.
- A communications technology that permits light to travel through hair?thin glass fibers and that increases the data transmission possible within a cable of small diameter.
- Technology of efficient transmission of light through transparent fibers such as glass, quartz, and plastic by means of total internal reflection. field of view (fov): range or area where things can be seen through an imaging system, lens, or aperture. angular subtense (expressed in angular degrees or radians per side if rectangular or in angular degrees or radians if circular) over which an instrument will integrate all incoming radiant energy. in a radiation thermometer, the field of view is the target spot size; in a scanner or imager, the field of view is the scan angle, picture size, or total field of view. compare depth of field.
- Technology of efficient transmission of light through transparent fibers such as glass, quartz and plastic by means of total internal reflection.
- Technology of light transmission through fibers such as plastic, glass or quartz.1
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Оптоволокно, русский
Чрезвычайно тонкое стекловолокно, используемое в телефонных сетях для передачи сигналов. см. оптико-волоконный кабель.
Волоконная оптика, русский
- Раздел оптики, в котором изучаются распространение света и передача информации по световодам. методы волоконной оптики используются в оптической связи, в медицинских приборах (освещение носоглотки, желудка и т. д.), в скоростной киносъемке, в ядерной физике (регистрация треков ядерных частиц), в фототелеграфии и телеметрии (преобразователи кода и шифровальные устройства), в вычислительной технике, акустике и т. д. /бсэ/
- , раздел оптики, в котором изучаются распространение света и передача информации по световодам. методы волоконной оптики используются в оптической связи, в медицинских приборах (освещение носоглотки, желудка и т. д.), в скоростной киносъемке, в ядерной физике (регистрация треков ядерных частиц), в фототелеграфии и телеметрии (преобразователи кода и шифровальные устройства), в вычислительной технике, акустике и т. д.
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Fib, английский
- Focused ion beam (sputtering)
- Focused ion beam
- Forward information base
Fib, английский
Fib, испанский
Acrónimo de format indicator bit [bit indicador de formato]
Fibble, английский
Fibel, немецкий
Fiber, английский
- General term for any long, narrow cell of wood.
- Волокно, нить
- A single optical transmission element characterized by a core, a cladding, and a coating. two common structures, single-mode (with a step-index profile) or multimode (with a graded-index profile) are used for fiber optic communication systems. different variations are made depending on the attenuation, bandwidth, dispersion, wavelengths, and mechanical requirements
- Us same as fibre
- Волокно
- [1] any substance (such as cotton, flax, or hemp) that can be separated into threads and twisted or braided together (i.e., to make rope). [2] the word has other meanings in anatomy (nerve, muscle, or connective tissue), botany (slender, threadlike root), nutrition (bulk, dietary fiber, roughage), optics (optical fiber), and as a character trait (moral fiber).
- Волокно; фибра о ~ in
- Term for a unit of any natural or synthetic textile raw material used for manufacturing fabric.
- Термин для единицы любого натурального или синтетического текстильного сырья, используемого для производства ткани.
- A unit of matter, either natural or manufactured, that forms the basic element of fabrics and other textile structures. a fiber is characterized by having a length at least 100 times its diameter or width. the term refers to units that can be spun into a yarn or made into a fabric by various methods including weaving, knitting, braiding, felting, and twisting. the essential requirements for fibers to be spun into yarn include a length of at least 5 millimeters, flexibility, cohesiveness, and sufficient strength. other important properties include elasticity, fineness, uniformity, durability, and luster. (also see manufactured fiber and natural fiber.)
Fiber, шведский
Fiber (fibre), английский
- The characteristic of wrought metal that indicates directional properties and is revealed by the etching of a longitudinal section or is manifested by the fibrous or woody appearance of a fracture. it is caused chiefly by the extension of the constituents of the metal, both metallic and nonmetallic, in the direction of working.
- The pattern of preferred orientation of metal crystals after a given deformation process, usually wiredrawing.
Fiber -, английский
Опалубка из древесно-волокни- стых материалов (листов, плит)
Fiber amplifier, английский
- Most common are the erbium doped fiber amplifiers (edfas), semiconductor optical amplifiers (soas), and raman amplifiers, which are used to increase signal gain without electrical conversion
- An optical fiber doped to amplify light from an external source. the most important type is the erbium-doped fiber amplifier.
Fiber amplifiers, английский
Optical amplifiers with doped fibers as gain media
Fiber angle, английский
Угол армирования
Fiber architecture, английский
The spatial arrangement of fibers in the preform. each architecture has a definite repeating unit.
Fiber axis, английский
Ось симметрии волокнистой текстуры, продольная ось проволоки
Fiber bandwidth, английский
The lowest frequency at which the magnitude of the fiber transfer function decreases to a specified fraction of the zero frequency value. often, the specified value is one-half the optical power at zero frequency.
Fiber bed filter, английский
Fiber bonding (binding), английский
Fiber bragg grating (fbg), английский
- A piece of photo-refractive fiber that is exposed to highintensity uv interference patterns, causing it to reflect a specific wavelength while being transparent to all other wavelengths. used as a filter in wdm systems
- An optical fiber in which the core refractive index varies periodically, causing bragg scatting at wavelengths selected by the period and refractive index. a fiber bragg grating reflects the selected wavelength and transmits others.
Fiber bragg gratings, английский
Reflective structures in the core of an optical fiber with a periodic or aperiodic perturbation of the effective refractive index
Fiber cables, английский
Cables containing one or several optical fibers
Fiber channel arbitrated loop, английский
Assemblage, английский
Transparent, английский
- An object or material that transmits both light and undiffused images. tip: try lighting a plain back-ground directly behind the object, not the object.
- Capable of transmitting light so that objects or images can be seen as if there were no intervening material.
- Общедоступная информация в вто присутствует принцип открытого обмена информацией, осуществляемый с целью осведомить всех членов о принимаемых решениях и вопросах, обсуждаемых на совещаниях и встречах маленьких групп
Inaccessible, английский
Недоступный
Definition, английский
- The fidelity of a television system to the original scene.
- Also called resolution. the fidelity with which detail is reproduced by a television system ranging from a fuzzy to a sharp appearance.
- The fidelity of reproduction of the pattern edge relative to the original master
- N дефиниция, определе- ние
- A verbal representation of a concept which serves to differentiate it from related concepts and allows humans to recognize and agree on the concept.
- Description of linear demarcation sensitivity or the detail sharpness of object outline in a radiologic test image. it is a function of screen type, exposure geometry, radiation energy, and characteristics sensor (such as film).
- Описание чувствительности к линейной демаркации или четкости контуров объекта на радиологическом контрольном изображении. это зависит от типа экрана, геометрии экспозиции, энергии излучения и характеристик датчика (например, пленки).
Reflection, английский
- The abrupt change in direction of a light beam at an interface between two dissimilar media that returns the beam into the medium where it originated, i.e., a mirror
- A light ray incident on an air to glass interface will have some of its energy redirected back toward its origin due to reflection at the interface.
- The return of radiant energy (incident light) by a surface, with no change in wavelength.
- The bouncing off of light which falls upon a surface.
- The change of direction which a ray of light, sound, or radiant heat undergoes when it strikes a surface; also
- 1. the image of somebody or something which is seen in a mirror or still water 2. the process of reflecting something, especially light, sound or heat 3. careful thought 4. a situation in which an anatomical structure bends back upon itself
- The process of obtaining information about assemblies and the types defined within them, and creating, invoking, and accessing type instances at run time.
- When light bounces back from a surface
- General term for the process by which the incident energy leaves a surface or medium from the incident side, without change in frequency. reflection is usually a combination of specular and diffuse reflection.2,6
- General term for the process by which the incident energy leaves a surface or medium from the incident side, without change in frequency. reflection is usually a combination of specular and diffuse reflection (iesna 1984). see also diffuse reflection; specular reflection.
- The act of thinking deeply about one`s actions, behaviour`s, and progress, often facilitated by a coach or mentor to promote self-awareness and learning.
Technology, английский
- The use of tools and knowledge to meet human needs.
- Техника; технология
- Техника (означает все знания или неотъемлемую часть знаний о: научных принципах или открытиях; промышленных процессах; материальных и энергетических ресурсах; средствах транспорта и связи, постольку, поскольку эти знания непосредственно касаются развития производства товаров или сферы услуг; документы юнеско)
- N технология speech recognition ~ технология распознава- ния речи3
- Национальный институт стандартов и технологии
- Технология
- The body of knowledge about, and the systematic study of, methods, techniques and hardware applied in the adaptation of the physical environment to man`s needs and wants. the application of scientific knowledge to build or improve the infrastructure of agriculture, industry government and daily life. (technology must not be confused with the very infrastructure it generates). technology has autocatalytic properties. it favores the use of technical devices and processes even in solving social problems, e.g., by using fertilizers to enhance agricultural production rather than a different form of work organization, by using computers for national planning rather than decentralized decision making processes.
- The practical application of knowledge to achieve particular tasks that employs both technical artefacts (hardware, equipment) and (social) information (‘software’, know-how for production and use of artefacts). supply push aims at developing specifi c technologies through support for research, development and demonstration. demand pull is the practice of creating market and other incentives to induce the introduction of particular sets of technologies (e.g., low-carbon technologies through carbon pricing) or single technologies (e.g., through technology-specifi c feed-in tariffs).
Communications, английский
- Средства связи; связь 158
- Средства связи; связь
- [1] general: the transfer of information according to agreed conventions. [2] information technology; the representation, transfer, interpretation, and processing of data between and
- Связь; система связи; коммуникации; пути сообщения
Transmission, английский
- Passage of electromagnetic radiation through a medium.
- Transmisión
- The property in a merchantman, or a share therein, transmitted in
- Передача; привод; коробка передач; трансмиссия; прохождение; распространение ~ of loads передача нагрузок
- The transport of high voltage electricity. this is achieved with a transmission network (or grid). generally the network will connect large generators to lower voltage distribution networks where it will be transported to the majority of electricity consumers. alternatively, large scale electricity users may connect directly to the transmission network. management of transmission is a natural monopoly due to the economies of scale inherent to it. transmission system operator (tso) (also transmission network operator-
- The sending of information over a communications line or a circuit.
- The transportation of electric energy in bulk from a source or sources of supply to other systems or parts of a single system.
- Transfer of pathogens from one host to another
Information, английский
- Knowledge of a particular event or situation, or knowledge communicated or received concerning a particular fact.
- Информация
- Facts about something have you any information about the treatment of sunburn? the police won’t give us any information about how the accident happened. you haven’t given me enough information about when your symptoms started. that’s a very useful piece or bit of information. (note: no plural: some information; a piece of information.)
- N информация | attr. информационный flow, structure source of ~ источник информации 1 ранее использовался в более широком значении как ‘умозаключе- ние’. 2 получение выводных данных в процессе обработки информации и/или языка и само выводное знание, умозаключение; мыслительная операция, в ходе которой человек выходит за пределы данных в тек- сте сведений и получает новую информацию. 3 аффикс, вставляемый внутрь корня слова при словообразовании или словоизменении.
- In admiralty courts, implies a clause introduced into a citation, intimating that in the event of a party cited not appearing, the court will proceed in his absence.
- Информация; данные; сведения
- Координационный комитет ин4юрмации о проектируемых и возводимых объектах строительства
- Literally that which forms within, but more adequately
- Data that has been recorded, classified, organized, related or interpreted so that meaning is apparent.
- Contextualised data providing answer to a certain question decreasing uncertainty.
- Информация, сведения
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Оптоволокно, русский
Чрезвычайно тонкое стекловолокно, используемое в телефонных сетях для передачи сигналов. см. оптико-волоконный кабель.
Определение чьих-то прав по доступу к материальным или информационным ресурсам, русский
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