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1 impédance du circuit d'entrée
входное полное сопротивление
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[IEV number 312-06-18]EN
input impedance
impedance of the input circuit measured between the input terminals under operating conditions
NOTE 1 – The impedance can be expressed in terms of admittance.
NOTE 2 – In certain instances, for example, sampling devices or self-balancing potentiometers, the impedance can be different according to the instant when it is determined, before, during or after the instant of measurement.
NOTE 3 – When the input circuit is such that the instantaneous value of the current flowing into the input terminals is a non-linear function of the instantaneous value of the input voltage under specified conditions of frequency and voltage, the combination of resistance and reactance which would absorb the same active power and in which would flow a reactive current equal to the fundamental component that is flowing in the actual input circuit, is sometimes called the "equivalent input impedance".
[IEV number 312-06-18]FR
impédance du circuit d'entrée
impédance du circuit d'entrée entre les bornes d'entrée dans les conditions de fonctionnement
NOTE 1 – L'impédance peut être exprimée en termes d'admittance.
NOTE 2 – Dans certains cas, par exemple les dispositifs d'échantillonnage ou les potentiomètres à rééquilibrage automatique, l'impédance peut être différente selon l’instant où elle est déterminée, avant, pendant ou après la mesure.
NOTE 3 – Lorsque le circuit d'entrée est tel que la valeur instantanée du courant traversant les bornes d'entrée est une fonction non linéaire de la valeur instantanée de la tension d'entrée dans des conditions spécifiées de fréquence et de tension, l'impédance d'une combinaison formée par une résistance et une réactance qui absorberaient la même puissance active et dans laquelle circulerait un courant réactif égal à la composante fondamentale qui circule dans le circuit d'entrée réel, est parfois appelée "impédance équivalente d'entrée".
[IEV number 312-06-18]Тематики
- измерение электр. величин в целом
EN
DE
FR
Франко-русский словарь нормативно-технической терминологии > impédance du circuit d'entrée
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2 impédance du circuit de sortie
выходное полное сопротивление
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[IEV number 312-06-19]EN
output impedance
impedance of the output circuit measured between the output terminals under operating conditions
NOTE 1 – The impedance can be expressed in terms of admittance.
NOTE 2 – In certain instances, for example, sampling devices or self-balancing potentiometers, the impedance can be different according to the instant when it is determined, before, during or after the instant of measurement.
NOTE 3 – When the output circuit is such that the instantaneous value of the current flowing into the output terminals is a non-linear function of the instantaneous value of the output voltage under specified conditions of frequency and voltage, the combination of resistance and reactance which would absorb the same active power and in which would flow a reactive current equal to the fundamental component that is flowing in the actual output circuit, is sometimes called the "equivalent output impedance".
[IEV number 312-06-19]FR
impédance du circuit de sortie
impédance du circuit de sortie entre les bornes de sortie dans les conditions de fonctionnement
NOTE 1 – L'impédance peut être exprimée en termes d'admittance.
NOTE 2 – Dans certains cas, par exemple les dispositifs d'échantillonnage ou les potentiomètres à rééquilibrage automatique, l'impédance peut être différente selon l’instant où elle est déterminée, avant, pendant ou après la mesure.
NOTE 3 – Lorsque le circuit de sortie est tel que la valeur instantanée du courant traversant les bornes de sortie est une fonction non linéaire de la valeur instantanée de la tension de sortie dans des conditions spécifiées de fréquence et de tension, l'impédance d'une combinaison formée par une résistance et une réactance qui absorberaient la même puissance active et dans laquelle circulerait un courant réactif égal à la composante fondamentale qui circule dans le circuit de sortie réel, est parfois appelée "impédance équivalente de sortie".
[IEV number 312-06-19]Тематики
- измерение электр. величин в целом
EN
DE
FR
Франко-русский словарь нормативно-технической терминологии > impédance du circuit de sortie
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3 bande passante
полоса пропускания
1. Ширина частотного спектра сигнала между верхней и нижней частотами среза
2. Интервал частот, заключенный между двумя частотами среза, в пределах которого модуль коэффициента передачи системы составляет не менее 0,707 от максимального значения
Примечание
Число полос пропускания преобразователя может быть больше единицы
[BS EN 1330-4:2000. Non-destructive testing - Terminology - Part 4: Terms used in ultrasonic testing]
[Система неразрушающего контроля. Виды (методы) и технология неразрушающего контроля. Термины и определения (справочное пособие). Москва 2003 г.]
полоса пропускания
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[IEV number 151-13-52]EN
pass-band
frequency band throughout which the attenuation is less than a specified value
[IEV number 151-13-52]FR
bande passante, f
bande de fréquences dans toute laquelle l'affaiblissement reste inférieur à une valeur spécifiée
[IEV number 151-13-52]EN
DE
FR
полоса пропускания пьезоэлектрического (электромеханического) фильтра
Полоса частот, в которой относительное затухание пьезоэлектрического (электромеханического) фильтра равно или менее заданного значения.
[ ГОСТ 18670-84]Тематики
EN
FR
Франко-русский словарь нормативно-технической терминологии > bande passante
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