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Frequency response
| CCTV glossary (глоссарий терминов по видеонаблюдению) |
- The range of band of frequencies to which a unit of electronic equipment will offer essentially the same characteristics.
- Частотная характеристика
- The range of frequencies that an audio device will reproduce at an equal level, within a tolerance, such as +/- 2db.
- How well a servo or proportional valve output follows the electrical input. the concept is critical in system design because of system stiffness.
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Частотная характеристика, русский
Respuesta en frecuencia ., испанский
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Frequency, английский
- A measure of the rate of occurrence of an event expressed as the number of occurrences of an event in a given time. see also likelihood & probability
- Частота
- The number of times a wave-like radio signal changes from the very positive to the very negative charge per second.
- The number of complete cycles of a periodic waveform that occur in a given length of
- Standard, primary основной эталон частоты
- The number of times a complete electromagnetic wave cycle occurs in a fixed unit of time, usually one second. the rate at which a current alternates, measured in hertz on a telecommunications medium.
- The number of complete cycles of a periodic waveform that occur in a given length of time. usually specified in cycles per second (hertz).
- The number of cycles per unit of time, denoted by hertz (hz); 1 hertz 1 cycle per second
- The number of times that the wave oscillates per second (the number of periods of oscillations per second). also, the number of light waves passing a fixed point in a given unit of time, or the number of complete vibrations in that period of time.
- The number of times an electromagnetic wave oscillates in a second, or the number of wave peaks that pass a point in second; measured in hertz.
- Frecuencia
- The number of oscillations per second (a) of the current or voltage in an alternating- current electric circuit, or (b) of a sound wave, fresco 442 or (c) of a vibrating solid object; expressed in hertz (abbr. hz) or in cycles per second (abbr. cps). fresco, buon fresco the technique of painting water colors on plaster when it is almost but not quite dry; in such work, waterbased colors unite with the base; any retouching is done when the plaster is dry (i.e., fresco secco). fresco secco, secco a mural, often fugitive, painted with water-based colors on dry plaster.
- 1. the number of times something takes place in a given time the frequency of micturition 2. the rate of vibration in oscillations
- Стабильность частоты
- N частота; частотность; повторяемость fundamental ~ основаная частота list ~ частота в списке text ~ текстовая частота
- Частота ~ of concrete vibrator частота колебаний, создаваемых вибратором при уплотнении бетонной смеси ~ of occurrence повторяемость (напр, гидрологической величины) ~ of sampling частота отбора проб
- The number of crests passing a fixed point at a given time.
- The number of repetitions per unit time of a complete waveform, expressed in hertz (hz).
- Measured in hertz (hz), the number of cycles per second of a sound wave or audio signal. a high-frequency sound (example, 12,000 hz) has a high pitch, and a low-frequency sound (example, 200 hz) has a low pitch.
- The number of times a category of events, of objects or of individuals has been observed, the number of members in a class (->probability, ->law of large numbers).
- In windows media player, the number, such as 88.5 or 101.7, used to locate a radio station.
- The measure of how often a periodic event occurs, such as a signal going through a complete cycle. frequency is usually measured in hertz (hz), with 1 hz equaling 1 occurrence (cycle) per second. frequency is also measured in kilohertz (khz, or 1,000 hz), megahertz (mhz, or 1,000 khz), gigahertz (ghz, or 1,000 mhz), or terahertz (thz, or 1,000 ghz).
- The number of events divided by the reach of the events.
- In uniform circular motion or in any periodic motion, the number of revolutions or cycles completed in unit time. friction false-twist texturing: see texturing, false-twist method.
- The number of repetitions per unit time of a complete waveform, expressed in
- The rate of vibration for a light wave or other electromagnetic wave
- The number of times a specified event occurs within a specified interval (e.g. accidents per year).
- Frequency in uniform circular motion or in any periodic motion is the number of revolutions or cycles completed in unit time. the international systems of units expresses frequency in hertz (1 hz = 1 cycle per second).
- Number of complete wave cycles passing a given point per second or the number of vibrations per second. frequency, fundamental: in resonance testing, the frequency at which the wavelength is twice the thickness of the test material. frequency, pulse repetition: number of pulses per second. frequency, response: amplification (gain) of a receiver over a range of frequencies. frequency, test: in ultrasonic testing, the nominal wave frequency in a given test.
- Number of times per second that a cyclical waveform repeats. the unit of frequency is hertz (hz).
- Number of times per second that a cyclical waveform repeats. the unit of frequency is hertz (hz). g
- Number of times per second that a cyclical waveform repeats. the unit of frequency is hertz (hz). full-wave current: single-phase or three-phase alternating current converted to produce unidirectional current. rectified current contains more amplitude variation, or ripple, than direct current from a battery.
- Number of complete wave cycles passing a given point per second or the number of vibrations per second.7
- A term used in ellipse to indicate certain periods or durations. used in calculations within some ellipse modules.
Frequency, английский
Frequency, английский
Frequency, английский
Frequency (fundamental) (ut), английский
In resonance testing, the frequency at which the wavelength is twice the thickness of the examined material.
Frequency (inspection) (ut), английский
Effective peak ultra-sonic wave frequency used to inspect the test part.
Frequency (pulse repetition) (ut), английский
The number of pulses per second.
Frequency agility, английский
Возможность изменения частоты несущей
Frequency allocation center, английский
Центр ло распределению радиочастот
Frequency allocation panel, английский
Рабочая группа по распределению радиочастот
Frequency analysis method, английский
Метод гармонического анализа
Frequency analyzer, английский
Частотный анализатор
Frequency and time-division data link, английский
Линия передачи данных с разделением по частоте и времени
Frequency array, английский
Таблица частот
Frequency band, английский
Полоса частот
Frequency chan, английский
Frequency changer, английский
Frequency channel, английский
Частотный канал
Frequency characteristic, английский
Частотная характеристика
Frequency code, английский
Частотный код
Frequency combs, английский
Optical spectra consisting of equidistant lines
Electronic, английский
- Associates, incorporated фирма «электроник ассо- шиитс инкорпорейтед»
- Communications, incorporated фирма «электронике комьюникейшнз инкорпорейтед»
- Devices, incorporated фирма «электроник дивайсиз :ин- корпорейтед»
- Электронный
- [emergency] locator transmitter аварийный радиомаяк
- One of the music genres that appears under genre classification in windows media player library. based on id3 standard tagging format for mp3 audio files. id3v1 genre id # 52.
Essentially, английский
- По существу; главным образом см. substantially
- No существу; главным образом
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.
Характеристика, русский
- ,..1) описание характерных, отличительных качеств, черт, свойств чего-либо или кого-либо...2) отзыв, заключение о трудовой, общественной деятельности кого-либо.
- , целая часть десятичного логарифма. напр., lg 300 = 2,4771, где 2 есть характеристика для lg 300; lg 0,3 = ,4771, где = -1 есть характеристика для lg 0,3.
- Качественный параметр для определения ценности бриллианта
- Отличительное свойство.
- Отличительное свойство. характеристика градуировочная (calibration characteristic) – зависимость между значениями величин на входе и выходе средства измерений, полученная экспериментально.
- Отличительное свойство (исо 9000, п. 3.5.1).
- Официальный документ, в котором содержится оценка деловых и личных качеств человека.
Proportional, английский
- Член пропорции
- A пропорциональный analogy
- Пропорциональный
Electrical, английский
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
Характеристик, русский
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Front porch, английский
- The portion of a composite picture signal which lies between the leading edge of the horizontal blanking pulse and the leading edge of the corresponding sync pulse.
- The blanking signal portion that lies between the end of the active picture
- The blanking signal portion that lies between the end of the active picture information and the leading edge of horizontal sync 15 / 43 g
Frequency interlace, английский
The method by which color and black and white sideband signals are interwoven within the same channel bandwidth.
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