Будьте завжди в курсі!
Дізнавайтесь про новітні розробки першими
Новини
Всі новини
17 Жовтня 2023
Нова 4K USB-камера Kurokesu
4 Вересня 2023
FPD-Link III та GMSL2 - нові можливості камер Alvium
3 Квітня 2023
Нова світлодіодна УФ-піч від UWAVE
Глосарій
EDFA (erbium-doped fiber amplifier)
E detector, ΔE detector
ENI (Equivalent Noise Input) - Photomultiplier tube
Equivalent background input
eV (electron volt)
Eye diagram
Excitation
Extinction ratio
E detector, ΔE detector
ENI (Equivalent Noise Input) - Photomultiplier tube
Equivalent background input
eV (electron volt)
Eye diagram
Excitation
Extinction ratio
EDFA (erbium-doped fiber amplifier)
EDFA (erbium-doped fiber amplifier) / Волоконно-оптичний підсилювач на оптичному волокні, легованому іонами ербію
A device that directly amplifies light using a quartz-based optical fiber with an erbium-doped core. Light is amplified in the optical fiber by induced radiation. When a weak light signal enters the EDFA, light amplification occurs at the same wavelength as the signal light. The EDFA is widely used as an optical amplifier for long-distance optical fiber communication in the 1.55 um band.
EDFA (erbium-doped fiber amplifier) / Волоконно-оптичний підсилювач на оптичному волокні, легованому іонами ербію
A device that directly amplifies light using a quartz-based optical fiber with an erbium-doped core. Light is amplified in the optical fiber by induced radiation. When a weak light signal enters the EDFA, light amplification occurs at the same wavelength as the signal light. The EDFA is widely used as an optical amplifier for long-distance optical fiber communication in the 1.55 um band.
E detector, ΔE detector
E detector, ΔE detector / E детектор, ΔE детектор
The E detector is a detector with a thickness enough to cover the range of high energy particles. It is designed for detecting the total energy of a particle. The ΔE detector in contrast is made thin enough to allow the particles being detected to pass through it so that the specific energy loss in the particle can be detected. A combination of a ΔE detector and E detector is called the ΔE-E detector and is an effective means of identifying particles.
E detector, ΔE detector / E детектор, ΔE детектор
The E detector is a detector with a thickness enough to cover the range of high energy particles. It is designed for detecting the total energy of a particle. The ΔE detector in contrast is made thin enough to allow the particles being detected to pass through it so that the specific energy loss in the particle can be detected. A combination of a ΔE detector and E detector is called the ΔE-E detector and is an effective means of identifying particles.
ENI (Equivalent Noise Input) - Photomultiplier tube
ENI (Equivalent Noise Input) - Photomultiplier tube / Еквівалентний шумовий вхідний сигнал – Фотоелектронний помножувач
ENI indicates the photon-limited signal-to-noise ratio. ENI refers to the amount of light in watts necessary to produce a signal-to-noise ratio of unity in the output of a photomultiplier tube. The value of ENI is given by the equation on the left.
q = electronic charge (1.60 x 10-19 coul.)
Idb = anode dark current in amperes after 30-minute storage in darkness
μ = gain
△f = bandwidth of the system in hertz (usually 1 hertz)
S = anode radiant sensitivity in amperes per watt at the wavelength of interest
ENI (Equivalent Noise Input) - Photomultiplier tube / Еквівалентний шумовий вхідний сигнал – Фотоелектронний помножувач
ENI indicates the photon-limited signal-to-noise ratio. ENI refers to the amount of light in watts necessary to produce a signal-to-noise ratio of unity in the output of a photomultiplier tube. The value of ENI is given by the equation on the left.
q = electronic charge (1.60 x 10-19 coul.)
Idb = anode dark current in amperes after 30-minute storage in darkness
μ = gain
△f = bandwidth of the system in hertz (usually 1 hertz)
S = anode radiant sensitivity in amperes per watt at the wavelength of interest
Equivalent background input
Equivalent background input / Вхідний сигнал, що еквівалентний фоновому
This indicates the input illuminance required to produce a luminous emittance from the phosphor screen, equal to that obtained when the input illuminance on the photocathode is zero. This indicates the inherent background level or lower limit of detectable illuminance of an image intensifier.
Equivalent background input / Вхідний сигнал, що еквівалентний фоновому
This indicates the input illuminance required to produce a luminous emittance from the phosphor screen, equal to that obtained when the input illuminance on the photocathode is zero. This indicates the inherent background level or lower limit of detectable illuminance of an image intensifier.
eV (electron volt)
eV (electron volt) / еВ (електрон-вольт)
Energy acquired by an electron when it is accelerated through a potential difference of 1 V in a vacuum. This is generally used as a unit to express the energy of elementary particles, atomic nuclei, atoms, molecules, etc.
1 eV = 1.602 10-19 J
eV (electron volt) / еВ (електрон-вольт)
Energy acquired by an electron when it is accelerated through a potential difference of 1 V in a vacuum. This is generally used as a unit to express the energy of elementary particles, atomic nuclei, atoms, molecules, etc.
Eye diagram
Eye diagram / Очна діаграма
This is a superimposed display of all waveforms for possible encoded strings, used to perform a comprehensive evaluation of the waveform distortion of the transmitted encoded pulses. This is also called the eye pattern.
Eye diagram / Очна діаграма
This is a superimposed display of all waveforms for possible encoded strings, used to perform a comprehensive evaluation of the waveform distortion of the transmitted encoded pulses. This is also called the eye pattern.
Excitation
Excitation / Збудження
In semiconductors, excitation refers to the process of raising electrons from a low-energy valence band to the higher-energy conduction band. If electrons are excited by heat, this process is called thermal excitation. If an electron is excited by light, then this process is called photoexcitation. It occurs when light is absorbed by a photodiode.
Excitation / Збудження
In semiconductors, excitation refers to the process of raising electrons from a low-energy valence band to the higher-energy conduction band. If electrons are excited by heat, this process is called thermal excitation. If an electron is excited by light, then this process is called photoexcitation. It occurs when light is absorbed by a photodiode.
Extinction ratio
Extinction ratio /
Коефіцієнт затухання
The ratio of the minimum value to the maximum value in the light power that varies during intensity modulation of light waves. In digital optical communications, this is defined as the ratio of the light power for transferring logic “1” to the light power for transferring logic “0.” This extinction ratio is ex- pressed in either linear ratio, dB, or %.
[Extinction ratio in digital optical communications]
Extinction ratio (linear ratio) = I(1)/I(0)
Extinction ratio [dB] = 10 log10 {extinction ratio (linear ratio)}
Extinction ratio [%] = I(0)/I(1) × 100
I(1): light power for transferring logic “1”
I(0): light power for transferring logic “0”
The ratio of the minimum value to the maximum value in the light power that varies during intensity modulation of light waves. In digital optical communications, this is defined as the ratio of the light power for transferring logic “1” to the light power for transferring logic “0.” This extinction ratio is ex- pressed in either linear ratio, dB, or %.
[Extinction ratio in digital optical communications]
Extinction ratio (linear ratio) = I(1)/I(0)
Extinction ratio [dB] = 10 log10 {extinction ratio (linear ratio)}
Extinction ratio [%] = I(0)/I(1) × 100
I(1): light power for transferring logic “1”
I(0): light power for transferring logic “0”