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Spectral irradiance
| Глоссарий по визуальному контролю и осмотру |
- Measure of energy emitted by a radiation source as function of wavelength. units of spectral irradiance are watts per square meter and are often plotted versus wavelength.
- Measure of energy emitted by a radiation source as function of wavelength. units of spectral irradiance are in watts per meter squared and are often plotted versus wavelength.
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Спектральное излучение, русский
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Irradiance, английский
- The density of the luminous flux which is incident on a surface.
- Интенсивность излучения
- The direct, diffuse, and reflected solar radiation that strikes a surface. usually expressed in kilowatts per square meter. irradiance multiplied by time equals insolation.
- The direct, diffuse, and reflected solar radiation that strikes a surface. usually
- Power of electromagnetic radiant energy incident on or radiated from the surface of a given unit area. compare radiance.
- Radiant power falling upon a known surface area at a given angle. compare radiance. see also radiometer. ishiharatm plates: trade name for a kind of pseudoisochromatic plates, used for color differentiation vision testing.
- Total radiant power, in watts per square meter (w/m2), falling upon a known surface area at a given angle.
- Total radiant power, in watts per square meter (w/m2), falling on a known surface area at a given angle. compare radiance. see also radiometer. irradiance, effective: measure of spectrally weighted radiant power in watts per meter-squared, as determined with a sensor whose responsivity replicates some desired action spectrum. compare irradiance; irradiance, spectral. irradiance, spectral: measure of energy emitted by a radiation source as function of wavelength. units of spectral irradiance are watts per square meter per nanometer (w·m–2·nm–1) and are often plotted versus wavelength. see also spectral power distribution. ishihara plate: trade name for a kind of pseudoisochromatic plate used for color differentiation vision testing.
- Radiant power falling upon a known surface area at a given angle. in nondestructive testing, the unit for irradiance of a uv-a source is microwatt per centimeter squared (?w·cm–2) and maximum irradiance occurs when the source and surface are perpendicular.
- Radiometer. j
Irradiance (e), английский
Radiant flux (radiant power) per unit area incident upon a given surface. units
Irradiance fluctuations, английский
Spectral, английский
Prefix used to denote a variable that changes as a function of wavelength.
Spectral absorptance, английский
Spectral absorption; factor, английский
Spectral analysis, английский
A form of time series analysis that treats the observed sequence of events or measurements as being analogous to a radio or similar signal. the signal is assumed to be a mix of "pure" signals at various frequencies and the model estimates the power (amplitude) at the various frequencies. typically the signals are represented by a fourier series, a mixture of sine and cosine functions. other basis functions can also be used, such as hadamard functions (which take on values of 1 and -1) or wavelets. see also: time series analysis, box-jenkins analysis.
Spectral ballistic camera, английский
Спектральная баллистическая фотокамера
Spectral beam combining, английский
A class of methods for beam combining, based on wavelength-sensitive beam combiners
Spectral brightness, английский
Brightness per unit optical bandwidth
Spectral color analysis technique, английский
Метод цветоспектрального анализа
Spectral coverage, английский
The number of spectral bands and their associated spectral resolution needed to faithfully extract target information.
Spectral curve, английский
A color's "fingerprint" (a visual representation of a color's spectral data. a spectral curve is plotted on a grid comprised of a vertical axis); and a horizontal axis (the visible spectrum of wavelengths. the percentage of reflected light is pl
Spectral data, английский
The most precise description of the color of an object. an object's color appearance results from light being changed by an object and reflected to a viewer. spectral data is a description of how the reflected light was changed. the percentage of reflecte
Spectral de-emphas i s, английский
Устранение частотных предыскажений ср. spectral emphasis
Spectral distribution, английский
Spectral efficiency, английский
- Спектральная эффективность см. rse
- The number of data bits per second that can be transmitted in a one hertz bandwidth range.
Spectral emphas i s, английский
Введение частотных предыскажений cp. spectral de-empha- s i s
Spectral gamma-ray log, английский
Spectral interferometry, английский
A class of interferometric methods, where interference in the frequency domain is exploited
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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Spectral responsivity, английский
- Measure of a photometric or radiometric sensor’s sensitivity over a wavelength range of interest, often presented as percent versus wavelength. photometric sensors should exhibit a bell shaped spectral responsivity curve over the visible light range, whereas radiometric sensors may exhibit a flat or other response curve.
- Measure of a photometric or radiometric integral sensor’s sensitivity over a wavelength range of interest, often presented as percent versus wavelength. photometric sensors should exhibit an approximately bell shaped spectral responsivity curve over the visible light range whereas radiometric sensors may exhibit a top hat or other response curve. see also action spectrum.
Specific examination, английский
- In certification of nondestructive testing personnel, a written examination that addresses the specifications and products pertinent to the application. compare general examination and practical examination.
- In certification of nondestructive testing personnel, a written examination that addresses the specifications and products pertinent to the application. compare color discrimination; general examination; practical examination; and vision acuity.
- In certification of nondestructive testing personnel, a written examination that addresses the specifications and products pertinent to the application.3 compare general examination and practical examination.
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