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Impact resistance
| Fiber Optic Glossary |
- A test that determines the ability of fiber optic cables and cable assemblies to withstand repeated impact loads. it measures the number of broken fibers, damage to the outer sheath, and any change in the optical transmittance or attenuation. specified in the tia/eia 455-25 “repeated impact testing of fiber optic cables and cable assemblies” fiber optic test procedure
- The measured ability of material or lens to sustain dynamically applied external forces without breaking.
- The resistance of surface (or a material or product) to a shock, such as a hard blow. impact strength, impact energy the amount of energy required to fracture a material; a measure of the material’s resistance to mechanical shock.
- 1. the resistance of a material to fracture by a blow, expressed in terms of the amount of energy absorbed before fracture. 2. in yarn or cord, the ability to withstand instantaneous or rapid rate of loading.
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Impact strength, английский
- Résilience
- Ударная вязкость; сопротивление удару
- Impact resistance
- The ability to resist shock, as measured by an impact testing machine.
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Impact, английский
- Падение (ракеты); столкновение (с преградой); встреча (с целью); поражение (цели)
- Implementation planning arid control
- Воздействие
- Учёт воздействия удара; ~ for
- Improved manufacturing performance through active change and training: a westinghouse partnership initiative.
Impact, французский
Impact / fatigue loading, английский
Ударная / усталостная нагрузка
Impact adjustment, английский
Impact analysis, английский
- Process for analysing where the specifics of a proposed change impact on rail safety taking into account the accredited rail organisations risk register, safety performance and accident/incident register.
- Анализ воздействия
- Анализ последствий; анализ влияния; прогнозирование
Impact assessment, английский
- Оценка влияния
- Оценка воздействия на окружающую среду (напр., нового промышленного предприятия)
- Оценка воздействия
Impact avalanche and transit time, английский
Impact ball hardness test, английский
Определение твердости методом падающего шарика (твердость по шору)
Impact breakers, английский
Impact cast, английский
Impact coefficient, английский
An enhanced loading designed to simulate occasional exceptional or accidental loads to which a sleeper may be subjected in service.
Impact crater, английский
A) [anthropogenic] a generally circular or elliptical depression formed by hypervelocity impact of an experimental projectile or ordinance into earthy or rock material. compare - caldera, crater, meteorite crater. sw; b) (not recommended - use meteorite crater) a generally circular crater formed by the impact of an interplanetary body (projectile) on a planetary surface. gg
Impact crusher, английский
Impact damage, английский
A condition found in composite layered structures wherein internal disbonding occurs with little external sign of its existence. impedance (z ): opposition that a circuit presents to the flow of an alternating current. often expressed for a coil as being comprised of a resistance r plus an inductive reactance xl.
Impact detector, английский
Взрыватель ударного действия
Impact dot matrix, английский
Ударная точечная матрица; печатающая головка матричного принтера
Impact energy, английский
Энергия соударения
Impact energy (impact value), английский
The amount of energy required to fracture a material, usually measured by means of an izod or charpy test.
Impact extrusion, английский
Impact factor, английский
In structural design, that factor by which a static load effect must be multiplied in order to find the increment of the dynamic effect of applying the load other than statically. impact insulation, impact isolation 1. the use of structures and materials designed to reduce the transmission of impact noise in a building. 2. the degree by which transmission of impact noise is reduced by use of materials and structures for that purpose. impact insulation class (iic) a singlenumber rating used to compare and evaluate the performance of floor-ceiling constructions in isolating impact noises.
Impact fees, английский
Transmittance, английский
- Прозрачность; коэффициент пропускания
- A measure of the fraction of collected light passed through an optical system. transmission losses result from surface reflections and internal absorption of the optical materials.
- The ratio of transmitted radiant energy to incident radiant energy, or the fraction of light that passes through a medium.
- The ratio of emerging radiant energy, intensity transmitted through a medium, to the incident radiant energy.
- Коэффициент пропускания
- Общий коэффициент пропускания, прозрачность.
- The amount of light that passes through a medium
Attenuation, английский
- The decrease in magnitude of a signal, as it travels through a medium. used to describe signal loss in a transmission system. measured in decibels (db).
- Поглощение
- Зависимость снижения мощности сигнала от расстояния. для оптоволоконных кабелей обычно выражается в дб/км
- In general terms, a reduction in signal strength.
- The decrease in magnitude of a wave, or a signal, as it travels through a medium or
- The difference between transmitted and received power due to loss through equipment, lines, or other transmission devices; usually expressed in decibels. the loss in power of electromagnetic signals between transmission and reception points.
- The decrease in magnitude of a wave, or a signal, as it travels through a medium or an electric system. it is measured in decibels (db).
- The loss of optical power, whether caused intrinsically (absorption, scattering, microbends, etc.), or extrinsically by components (connectors, splices, splitters, etc)
- The decrease in radiation energy (power) as a beam passes through an absorbing or scattering medium.
- Reduction of signal magnitude, or loss, normally measured in decibels. fiber attenuation is normally measured per unit length in decibels per kilometer. the decrease in signal strength along a fiber optic waveguide caused by absorption and scattering. attenuation is usually expressed in db/km.
- A reduction in the effect or strength of something such as a virus, either because of environmental conditions or as a result of a laboratory procedure
- Ослабление
- Ослабление (затухание). уменьшение количества радиации при ее прохождении через вещество в результате всех видов взаимодействия с этим веществом. ослабление обычно не связано с уменьшением геометрических размеров (мос, 5). ослабление солнечной радиации — потеря энергии световым лучом при его прохождении через атмосферу земли. потеря энергии обусловлена рассеянием света молекулами воздуха, селективной абсорбцией молекулами определенных веществ и рассеянием света аэрозолями (вмо).
- The weakening of a transmitted signal, such as the distortion of a digital signal or the reduction in amplitude of an electrical signal. attenuation is usually measured in decibels and is sometimes desirable, as when signal strength is reduced electronically, for example, by a radio volume control, to prevent overloading.
- The weakening of a transmitted signal, such as the reduction in the brightness of light, as it travels farther from its source.
- Regulatory system of prokaryotes whereby secondary stem-loop structures formed within the 5’ end of an mrna being transcribed determine both if transcription to complete the synthesis of this mrna will occur and if this mrna will be used for translation
- Decrease in transmitted energy intensity over distance. the loss may be due to absorption, scattering, reflection, leakage, beam divergence, or other material effects.
- Снижение интенсивности передаваемой энергии на расстоянии. потери могут быть вызваны поглощением, рассеянием, отражением, утечкой, расходимостью луча или другими материальными эффектами.
- Decrease in signal magnitude during energy transmission from one point to another. this loss may be caused by absorption, reflection, scattering of energy or other material characteristics or may be caused by an electronic or optical device such as an attenuator.1
- (1) decrease in energy or signal magnitude in transmission from one point to another. can be expressed in decibels or as a scalar ratio of the input magnitude to the output magnitude.16 (2) change in signal strength caused by an electronic device such as an attenuator. (3) decrease in intensity caused by absorption, leakage, reflection, scattering or other material characteristics. see also neper.
- (1) decrease in acoustic energy over distance. this loss may be caused by absorption, leakage, reflection, scattering or other material characteristics. (2) decrease in signal amplitude caused by acoustic energy loss or by an electronic device such as an attenuator.10,16,21
Resistance, английский
- Property of a conductor that opposed the current flow produced by a given difference of potential. the ohm is the practical unit of resistance.
- Уровень сопротивления - уровень цен, при котором активные продажи могут приостановить или развернуть тенденцию к повышению;
- Сопротивление (параметр)
- Сопротивление
- Сопротивление, т. е. уровень цен, при котором активные продажи могут приостановить или развернуть тенденцию к повышению.
- 1. the ability of a person not to get a disease 2. the ability of bacteria or a virus to remain unaffected by a drug the bacteria have developed a resistance to certain antibiotics. 3. opposition to a force
- Resistencia
- Устойчивость; резистентность resource for child health (reach)
- Устойчивость; резистентность
- The property of opposing movement, for example [1] electrical conductors offer resistance to the flow of electricity and dissipate some of its energy, usually as heat. [2] water resists the movement of vessels or other objects by parasitic drag, consuming some of the power available to drive the vessel forward.
- Imperviousness of the coating to mechanical, chemical, physical or weather influences
- Capacity of a member or component, or a cross-section of a member or component of a structure, to withstand actions without mechanical failure e.g. bending resistance, buckling resistance, tension resistance
- A material’s ability to restrict the flow of electrical current through itself. measured in ohms.
- The opposition of a circuit to the flow of current . resistance is measured in ohms, and can be calculated by dividing the voltage by current.
- The ability to impede (resist) the flow of electric current. with the exception of superconductors, all substances have a greater or lesser degree of resistance. substances with very low resistance, such as metals, conduct electricity well and are called conductors. substances with very high resistance, such as glass and rubber, conduct electricity poorly and are called nonconductors or insulators.
- An effective upper bound on prices achieved because of many willing sellers at that price level.
- Capacity of a component, or cross section of a component of a structure to
- The opposition to the flow of an electrical current through a conductor or circuit that does not include inductive or capacitive elements. it can be expressed as the ratio of the applied voltage to the current.
- Resistance is the opposition to the flow of an electrical current through a conductor. its unit is the ohm.
Mechanical, английский
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Polyurethane (pu), английский
A thermoplastic material used in cable jackets derived from the polymerization of ethylene gas. basically, they are pure hydrocarbon resins with excellent dielectric properties
Cutback method, английский
A technique for measuring fiber attenuation by performing two transmission measurements. one is done at the output end of the full length of the fiber. the other is usually done within 1-3 meters of the input end and accessed by “cutting back” the test fiber and measuring the change in the pre- and post-cutback measurements
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