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Spectrophotometer
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- An instrument that measures the characteristics of light reflected from our transmitted through an object, which is interpreted as spectral data.
- An instrument for measuring the reflectance and transmittance of surfaces and media as a function of wavelength.
- An instrument used to measure the transmission or reflectance of light as a function of wavelength.
- Instrument used for spectrophotometry.
- Instrument capable of measuring the amount of visible light reflected from or transmitted through a sample. a spectrophotometer may, for example, be used to measure the spectral transmittance of an optical filter. see also polychromator spectrometer.
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Espectrofotómetro, испанский
Спектрофотометр, русский
- Устройство для измерения спектральных свойств поверхности - как поверхность отражает свет в различных участках спектра.
- (от спектр и фотометр) , спектральный прибор, сравнивающий измеряемый поток излучения с эталонным. применяется в спектральном анализе.
- Устройство для замера спектра поглощения бриллиантом света.
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Instrument, английский
- A term used to describe a sensor (or sensors), the associated transducer(s), and the data read-out or recording device.
- (измерительный) прибор
- One of many terms for a light, heard mostly in the theater. see: lights.
- A piece of equipment or a tool the doctor had a box of surgical instruments.
- A term of extensive application among tools and weapons; but it is here introduced as an official conveyance of some right, or the record of some fact.
- A legal document that records an act or agreement and provides the evidence of that act or agreement. instruments include contracts, notes, and leases (e.g. a debt instrument).
- Навести инструмент ~ of application точка приложения (напр, силы) ~ of certainty тройная засечка ~ of compound curvature точка сопряжения двух кривых ~ of concentration замыкающий створ ~ of contraflexure точка перегиба ~ of curvature начало или конец кривой (в плане) ~ of cusp точка сопряжения обратных кривых ~ of grade intersection точка перелома в продольном профиле ~ of high stress concentration точка концентрации высоких [значительных] напряжений ~ of inflection точка перегиба ~ of intersection вершина угла (на плане трассы) ~ of lateral restraint точка бокового закрепления [защемления] (сжатого или изгибаемого элемента) ~ of support точка опоры ~ of switch конец остряка ~ of tangency начало или конец кривой (в плане) ~ of the maximum bending moment точка максимального изгибающего момента ~ of vertical curve начало вертикальной кривой ~ of vertical intersection вершина угла вертикальной кривой ~ of vertical tangent начало или конец вертикальной кривой ~ of zero moment точка нулевого момента (на эпюре моментов)
- Прибор, инструмент
- To tag the source code in order to measure the amount of time spent in each area.
- Инструмент
Characteristics, английский
- The distinguishing qualities of a navigation aid or buoy, including shape and color, whether fixed or flashing, and flashing sequence.
- A high-performance fiber with high chemical resistance that does not burn in air. it has no melting point and does not drip when exposed to flame. the fiber and fabrics from pbi retain their flexibility, dimensional stability, and significant strength without embrittlement even when exposed to flame or extreme heat. the fiber emits little smoke in extreme conditions. it processes well on conventional textile equipment, having processing characteristics similar to polyester. it can be used in 100% form or blended with other fibers. it has a high moisture regain and low modulus with comfort properties similar to cotton. the natural color of pbi is a gold-khaki shade, but it can be dyed to almost any medium to dark shade with conventional basic dyes.
- Acetate fabrics are in appearance fast-drying, wrinkle and shrinkage resistant, crisp or soft in hand depending upon the end use.
- Although modacrylics are similar to acrylics in properties and application, certain important differences exist. modacrylics have superior resistance to chemicals and combustion, but they are more heat sensitive (lower safe ironing temperature) and have a higher specific gravity (less cover).
- Although the properties of the nylons described above vary in some respects, they all exhibit excellent strength, flexibility, toughness, elasticity, abrasion resistance, washability, ease of drying, and resistance to attack by insects and microorganisms.
- Because acrylic fibers are thermoplastic, fabrics may be heat-set for wrinkle resistance and to provide permanency to pleats. acrylic fabrics have low moisture absorbency and dry relatively quickly. in general, acrylic fibers are resistant to the degrading effects of ultraviolet rays in sunlight and to a wide range of chemicals and fumes. they provide warmth in fabrics that are lightweight, soft, and resilient. acrylic fibers have relatively poor flame resistance compared with other fibers. some acrylic fabrics, particularly knit types, approximate the hand of fine wool. because of the composition and cross section of the fiber, fabrics made therefrom have a high bulk to weight ratio. this is further enhanced with the so-called “high bulk” spun yarns.
- Glass fiber is incombustible and will tolerate heat up to 1000°f without material damage. potential strength is not realized in woven fabrics or even in yarns, because the fiber is brittle and fracture points may develop, but nevertheless, very high tensile strength is obtained in woven fabrics, and is retained at elevated temperatures. the fiber originally was difficult to color but methods have been developed to accomplish this. moisture absorption is low. electrical and insulation resistance is high.
- Polychlal fibers have a soft, lamb’s wool-like hand and moderate moisture regain. the fibers are also characterized by high flame resistance and high abrasion resistance.
- Polyester fibers have high strength and are resistant to shrinking and stretching. fabrics are quick drying and tend to have wrinkle resistance and crease retention, wet and dry. polyester is used alone and in blends. it has been one of the first fibers to be developed in fabrics with durable-press features.
- Polyethylene fibers have a low specific gravity, extremely low moisture regain, the same tensile strength wet and dry, and are resistant to attack by mildew and insects. these qualities have made polyethylene fiber suitable for industrial applications, geotextiles, outdoor furniture, and similar applications. polyethylene fiber does not dye, and in most cases, it is colored by the addition of pigments and dyes to the material prior to spinning. it has a low melting point, a property that has restricted its use in apparel.
- Polypropylene fibers have a number of advantages over polyethylene fibers in the field of textile applications. the degree of crystallinity, 72 to 75%, results in a fiber that is strong and resilient, and does not fibrillate like high-density polyethylene. polypropylene has a high work of rupture, which indicates a tough fiber, and may be made with tenacities as high as 8.0 to 8.5 grams per denier. the melting point of polypropylene is 165°c, which is low by comparison with nylon or polyester, but is high enough to make it suitable for most textile applications. so light that it actually floats, polypropylene fiber provides greater coverage per pound than any other fiber. it is highly resistant to mechanical abuse and chemical attack.
- Rayon yarns are made in a wide range of types in regard to size, physical characteristics, strength, elongation, luster, handle, suppleness, etc. they may be white or solution dyed. strength is regulated by the process itself and the structure of the yarn. (also see polynosic fiber.) luster is reduced by including delustering materials, such as titanium dioxide pigments, in the fiber when it is extruded. the suppleness of the yarn is controlled by the number of filaments in the yarn, the denier or gauge of the individual filaments or fibers, and the fiber cross-section.
- Spandex is lighter in weight, more durable, and more supple than conventional elastic threads and has between two and three times their restraining power. spandex is extruded in a multiplicity of fine filaments which immediately form a monofilament. it can be repeatedly stretched over 500% without breaking and still recover instantly to its original length. it does not suffer deterioration from oxidation as is the case with fine sizes of rubber thread, and it is not damaged by body oils, perspiration, lotions, or detergents.
Interpreted, английский
Интерпретируемый
Reflectance, английский
- The percentage of light that is reflected from an object. spectrophotometers measure an object's reflectance at various intervals along the visible spectrum to determine the object color's spectral curve. see spectral curve, spectral data.
- The ratio of light returned from a surface expressed as a percentage.
- Отражательная способность
- The percentage of light reflected from a component, such as a connector, splice, splitter, or wdm
- The ratio of the reflected flux to the flux incident on a surface. reflectance coefficient, reflectance factor
- Коэффициент отражения, отражательная способность
- Ratio of reflected wave energy to incident wave energy. also known as reflectivity.
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
Wavelength, английский
- Light is made up of electromagnetic waves; wavelength is the crest (peak)-to-crest distance between two adjacent waves.
- Для оптических сетевых устройств длина волны светового потока составляет 850, 1300, 1310 и 1550 нм
- The optical term for frequency. fiber optics generally uses the 850 nm, 1300/1310 nm, 1550 nm and 1625 nm wavelengths for transmission purpose due to the marriage of performance with light sources, optical fibers, and optical detector technologies
- Distance in the direction of propagation of a periodic wave between two successive points at which the phase is the same. tel 203•377•8282 fax 203•378•2457 e-mail res_sales@oriel.com url www.oriel.com 9-17 polarization lenses optics prisms & filters beam splitters windows, substrates & mirrors properties of optical coatings optical materials
- The length of the light wave, usually measured from crest to crest, which determines its color. common units of measurement are the micrometer (micron), the nanometer, and the angstrom unit.
- The spatial period of a plane wave
- The distance between "waves" in the electromagnetic field, specified as angstroms or nanometers.
- The distance an electromagnetic wave travels in the time it takes to oscillate through a complete cycle. wavelengths of light are measured in nanometers (10-9 m) or micrometers (10-6m).
- The linear distance occupied by one complete cycle of vibration of an energy form from any given point to the next point characterized by the same phase.
- For light waves or sound waves, the distance between two successive points of a periodic wave in the direction of propagation, in which the oscillation has the same phase; the distance the wave travels in one period. for light waves three common units of wavelength are: micrometer, nanometer, and angstrom. wave molding, oundy molding, swelled chamfer, undulating molding, undy
- Длина волны wax 1. воск 2. парафин 3. пластичная глина way 1. путь; дорога 2. проход; переход 3. колея 4. направление, сторона 5. амер, расстояние
- The physical length between corresponding points of successive cycles of a wave. low frequencies have long wavelengths; high frequencies have short wavelengths.
- The distance between the crests of a wave in a radio signal, measured as the speed of light divided by the frequency in- hz.
- The distance between one peak of a wave and the next peak
- Light is measured by its wavelength (in nanometers) or frequency (in hertz). one wavelength. equals the distance between two successive wave crests.
- The distance between two points having the same phase in two consecutive cycles of a periodic wave, along a line in the direction of propagation.
- Distance between repeating values of a wave — for example, the distance from one peak to the next peak on a sine wave. wavelength is a fundamental descriptor when discussing wave behavior, system sensitivity, and diffraction effects.
- Distance between repeating values of a wave. for example, the distance from one peak to the next peak on a sine wave.
- Distance between repeating values of a wave. for example, the distance from one peak to the next peak on a sine wave. wavelength is generally measured in nanometers when considering uv-a radiation (for example, 365 nm). compare frequency.
- Distance between repeating units of a wave. for example, the distance from one peak to the next peak.
- Distance needed in the propagation direction for a wave to go through a complete cycle.7,21
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
Spectrophotometry, английский
- Спектрофотометрия. измерение распределения спектральной энергии (т. е. распределения энергии как функции длины волны) источников света. при использовании в аналитической химии этот метод заключается в измерении степени поглощения пробой света определенной длины волны или различных длин волн спектра электромагнитного излучения (молекулярная абсорбционная спектрофотометрия). (абсорбирующее вещество наиболее интенсивно поглощает свет определенных длин волн, которые характерны для него и различны для разных веществ. в спектрофотометре свет любой необходимой длины волны или сплошная «развертка» всех длин волн данной области спектра могут быть получены с помощью устройства, называемого монохро-матором.) спектрофотометрия представляет собой один из наиболее важных аналитических методов; в зависимости от выбранной области спектра (инфракрасный, видимый или ультрафиолетовый свет) такое измерение светопоглощения может дать большой объем информации, например, о чистоте пробы, о концентрации данного абсорбирующего вещества в пробе или о химической структуре изучаемого соединения. это один из наиболее широко используемых методов измерения концентрации загрязняющих веществ в воздухе. см. также absorbance; transmittance; spectroscopy — спектральная поглощательная способность; общий коэффициент пропускания; спектроскопия.
- Measurement of the luminance or illuminance produced by electromagnetic radiation as a function of wavelength.
- Measurement of electromagnetic radiant energy as a function of wavelength, particularly in the ultraviolet, visible and infrared wavelengths.
- Quantitative measurement of visible light reflected from or transmitted through a sample as a function of wavelength.
Spectrometer, английский
- An instrument for identifying and comparing materials by the dispersing of light and the study of the spectra formed.
- Device used to characterize the emission spectrum of a source of electromagnetic radiation as counts per integration time, as relative irradiance, or as absolute irradiance versus wavelength or frequency. compare mass spectrometer.
- Device used to characterize the emission spectrum of a source of electromagnetic radiation in counts per integration time, relative irradiance, or absolute irradiance versus wavelength or frequency. compare spectrofluorometer; spectroradiometer. see also polychromator spectrometer.
Characteristic, английский
- Property that helps to distinguish between items of a given population (3)
- A quality which allows something to be recognised as different cancer destroys the cell’s characteristics. adjective being a typical or distinguishing quality symptoms characteristic of anaemia the inflammation is characteristic of shingles.
- N характеристика (см. тж. portrayal) articulatory ~ артикуляторная характеристика perceptual ~ перцептивная характеристика, характеристика восприятия
- Характерная особенность, признак; характеристика, особенность ~s of the loading особенности [параметры] нагружение (конструкции)
- The characteristic dimension dc
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Спектрофотометр, русский
- Устройство для измерения спектральных свойств поверхности - как поверхность отражает свет в различных участках спектра.
- (от спектр и фотометр) , спектральный прибор, сравнивающий измеряемый поток излучения с эталонным. применяется в спектральном анализе.
- Устройство для замера спектра поглощения бриллиантом света.
Распределение спектральной энергии, русский
Доля каждой из длин волн в излученном или отраженном свете.
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