-
1 фазовая модуляция
фазовая модуляция
-
[IEV number 314-08-03]EN
phase modulation
process by which the phase of a carrier wave is varied, relative to a reference sine function, according to a specified law
NOTE – The result of this process is a phase modulated signal.
Source: 702-06-36 MOD
[IEV number 314-08-03]FR
modulation de phase
opération par laquelle la phase d'une onde porteuse, par rapport à une fonction sinusoïdale de référence, varie selon une loi spécifiée
NOTE – Le résultat de cette opération est un signal modulé en phase.
Source: 702-06-36 MOD
[IEV number 314-08-03]Тематики
- измерение электр. величин в целом
EN
DE
FR
Русско-французский словарь нормативно-технической терминологии > фазовая модуляция
-
2 основная частота
основная частота
первая гармоника
Низшая собственная частота колебательной системы.
Единица измерения
Гц
[Система неразрушающего контроля. Виды (методы) и технология неразрушающего контроля. Термины и определения (справочное пособие). Москва 2003 г.]
основная частота
Частота в спектре, полученном путем преобразования Фурье функции времени, относительно которой рассматриваются все частоты спектра.
В случае возможного риска неопределенности при определении основной частоты данная частота должна быть определена с учетом числа полюсов и скорости вращения синхронного генератора (генераторов), питающего систему электроснабжения.
[ ГОСТ Р 51317.4.30-2008 (МЭК 61000-4-30:2008)]EN
fundamental frequency
frequency in the spectrum obtained from a Fourier transform of a time function, to which all the frequencies of the spectrum are referred
NOTE In case of any remaining risk of ambiguity, the fundamental frequency may be derived from the number of poles and speed of rotation of the synchronous generator(s) feeding the system
[IEC 61000-4-30, ed. 2.0 (2008-10)]FR
fréquence fondamentale
fréquence du spectre obtenue à partir d’une transformée de Fourier d’une fonction temporelle, servant de référence à toutes les autres fréquences du spectre
NOTE S’il subsiste un risque d’ambiguïté, la fréquence fondamentale peut être déterminée à partir du nombre de pôles et de la vitesse de rotation du ou des générateurs synchrones alimentant le réseau.
[IEC 61000-4-30, ed. 2.0 (2008-10)]Тематики
- виды (методы) и технология неразр. контроля
- качество электрической энергии
Синонимы
EN
FR
Русско-французский словарь нормативно-технической терминологии > основная частота
См. также в других словарях:
Reference ranges for blood tests — Reference ranges edit in: blood urine CSF feces Reference ranges for blood tests are sets of values used by a health professional to interpret a set of … Wikipedia
Reference range — Reference ranges edit in: blood urine CSF feces In health related fields, a reference range or reference interval usually describes the variations of a measurement or value in healthy i … Wikipedia
function — function, functionalism Although the use of the concepts of function and functionalism is usually associated with the work of Talcott Parsons in modern sociology, there is a long tradition of functional explanation in studying societies, and a… … Dictionary of sociology
Reference re Amendments to the Residential Tenancies Act (N.S.) — [1996] 1 S.C.R. 186 is a reference question put to the Supreme Court of Canada regarding the ability of the federal government to appoint judges under section 96 of the Constitution Act, 1867.The Court considered that giving all of the jurisdict … Wikipedia
Reference (C++) — In the C++ programming language, a reference is a simple reference datatype that is less powerful but safer than the pointer type inherited from C. The name C++ reference may cause confusion, as in computer science a reference is a general… … Wikipedia
Reference — For help in citing references, see Wikipedia:Citing sources. For the Wikipedia Reference Desk, see Wikipedia:Reference desk. Reference is derived from Middle English referren, from Middle French rèférer, from Latin referre, to carry back , formed … Wikipedia
Function (mathematics) — f(x) redirects here. For the band, see f(x) (band). Graph of example function, In mathematics, a function associates one quantity, the a … Wikipedia
Reference (computer science) — This article is about a general notion of reference in computing. For the more specific notion of reference used in C++, see Reference (C++). In computer science, a reference is a value that enables a program to indirectly access a particular… … Wikipedia
Function prologue — In assembly language programming, the function prologue is a few lines of code which appear at the beginning of a function, which prepare the stack and registers for use within the function. Similarly, the function epilogue appears at the end of… … Wikipedia
reference group — The term reference group was coined by Herbert Hyman inArchives of Psychology (1942), to apply to the group against which an individual evaluates his or her own situation or conduct. Hyman distinguished between a membership group to which people… … Dictionary of sociology
Reference ellipsoid — In geodesy, a reference ellipsoid is a mathematically defined surface that approximates the geoid, the truer figure of the Earth, or other planetary body.Because of their relative simplicity, reference ellipsoids are used as a preferred surface… … Wikipedia
