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Filter (optical)
| Глоссарий по теории волн |
An optical device, which modifies the characteristics of radiation, which is passed through it. usually filters either attenuate all wavelengths of radiation a certain controlled amount or modify the optical pass band of the radiation - eliminating select
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Filter, английский
- A device used to remove dust and other particles from air to provide healthier air quality and to protect the hvac equipment. the higher the merv rating, the better the filter.
- A device that removes dust and other air particles to comfort the respiratory system and protect the heating and cooling equipment the higher the merv rating,
- Any device or porous substance used as a strainer for cleaning fluids by removing suspended matter.
- Фильтр
- A device which transmits only part of the incident energy and may thereby change the spectral distribution of energy.
- In optical science, a device, material, or color for restricting transmission of certain light rays.
- A piece of paper or cloth through which a liquid is passed to remove any solid substances in it verb to pass a liquid through a membrane, piece of paper or cloth to remove solid substances impurities are filtered from the blood by the kidneys.
- Опрокидыватель
- N фильтр 1 совокупность слов, объединяемых смысловыми связями по сходным признакам их лексических значений. perceptual ~s псхл. фильтры восприятия
- A strainer to free water from its impurities, usually termed by seamen drip-stone (which see).
- Фильтр. при очистке газа — устройство для отделения твердых и жидких частиц от потока газа, в котором они взвешены. это устройство обычно представляет собой пористый или волокнистый слой и/или набор пористых и/или волокнистых слоев (предварительный стандарт мос, 8). э8
- A circuit that attenuates or removes frequencies from a sound or waveform above or below a certain frequency. filters can be used to reduce unwanted noise above or below the frequency range of a voice or instrument. one type of filter, a bandpass filter, allows the frequencies within a specified range to pass, while a notch filter inhibits the frequencies in a specified range. even midi data can be filtered, using a midi data filter, to remove specified messages (pitch bend, modulation) from the midi data stream.
- A pattern or mask through which data is passed to separate specified items.
- A set of conditions and associated actions that may be applied to certain tasks. for example, an email rule might stipulate that all messages from a particular sender be placed into a specific folder.
- A tool that you can use to categorize inventory items for quick searching. filters also restrict the availability of items to customers, vendors, and warehouse processes.
- To define the types of ui automation elements to be included in a view of the ui automation tree.
- To display files that meet certain criteria. for example, you might filter files by a particular author so that you only see the files written by that person. filtering does not delete files, it simply changes the view so that you only see the files that meet your criteria.
- To display only the rows in a list that satisfy the conditions you specify. you use the autofilter command to display rows that match one or more specific values, calculated values, or conditions.
- Words, phrases, sources, languages, time frame, authors, or an author’s reach that the data set does or doesn’t contain. filter
- Porous material, or device containing such material, for removing suspended particulate matter from a fluid, as for example an air filter, fuel filter or oil filter. centrifuges and magnetic devices for removing metallic dust are sometimes, though inaccurately, referred to as filt
- A porous substance or device that cleans fluids by removing suspended matter.
- (1) data processing component or function that excludes a selected kind of signal or part of a signal. (2) network or device that passes electromagnetic wave energy over a described range of frequencies and attenuates energy at all other frequencies. in radiologic testing, the thickness of absorbing material placed in a primary radiation beam to selectively remove longer wavelength radiation, thereby adjusting the quality of the image.
- Processing component or function that excludes a selected kind of signal or part of a signal.
- (1) network or device that passes electromagnetic wave energy over a described range of frequencies and attenuates energy at all other frequencies.1,4 (2) processing component or function that excludes a selected kind of signal or part of a signal.1 (3) in optics, a sequence of materials so arranged to pass selected wavelengths and to block or attenuate others.
- (1) electrical circuit that leaves a signal unaffected over a prescribed range of frequencies and attenuates signal components at all other frequencies.10,20 (2) data analysis process for treating data files.
Filter, английский
Filter, немецкий
Filter (camera), английский
Any light-transmitting medium that absorbs, reflects, or diffuses light when placed in front of or behind a lens.
Filter (for a light), английский
Any light-transmitting medium that, when placed in front of the fixture, absorbs, reflects, or diffuses part or all of the beam. "filter" may imply glass as opposed to gel materials. also see: dichroic.
Filter (rt), английский
A layer of absorptive material that is placed in the beam of radiation for the purpose of absorbing rays of long wavelengths to control the quality of the radiograph.
Filter (strainer, well screen), английский
Filter -, английский
Фильтрующий слой
Filter / coalescer, английский
Filter / screen, английский
Filter / to filter, английский
Filtre / filtrer
Filter / to filter, английский
Filter aid, английский
A powder added to a solution to be filtered that forms a porous bed to improve filtration.
Filter airwashing, английский
Filter alum, английский
Filter area, английский
The part of pivottable or pivotchart view that contains filter fields.
Filter bag, английский
Мешочный (рукавный) фильтр. устройство для удаления пыли из воздуха, насыщенного пылью, включает цилиндры из плотно сотканного материала, который пропускает воздух, но задерживает твердые частицы. термин «всасывающий фильтр» изъят из употребления (предварительный стандарт мос, 8). длина рукава мешочного фильтра может достигать 10 м, а диаметр — 1 м. эффективность в зависимости от условий может достигать 99—99,9 % • если на ткань нанести слой химически активного порошка, то из дымового таза могут быть удалены газообразные загрязнители при низких концентрациях (например, таким путем можно удалить соединения фтора из газов, образующихся при электролитическом способе производства алюминия). установка, состоящая из большого числа мешочных фильтров, называется пылеулавливающей камерой (помещением для газоочистки).
Filter bank, английский
Filter bed, английский
A bed of gravel, sand, or the like used to filter water or sewage; also
Filter bed(s), английский
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.
Controlled, английский
- Управляемый; регулируемый
- Управляемый
- Подконтрольный (о предприятиях)
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
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
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Frame rate, английский
- Is the rate at which an entire scene is change when every pixel is commanded to project a new value of signal radiance.
- The number of frames per second that the camera produces.
- The number of frames that are shown or sent each second. live action relates to a frame rate of 30 frames per second.
- Number of frames that are shown or sent each second. live action is around 30 frames per second.
- The number of video frames displayed per second. higher frame rates generally produce smoother movement in the picture.
Field of view (fov), английский
The total field measured in angle within which objects can be imaged or measured and displayed by an infrared system.
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