-
1 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:
Hardware random number generator — This SSL Accelerator computer card uses a hardware random number generator to generate cryptographic keys to encrypt data sent over computer networks. In computing, a hardware random number generator is an apparatus that generates random numbers… … Wikipedia
Utility frequency — The waveform of 230 volt, 50 Hz compared with 110 V, 60 Hz. The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the frequency at which alternating current (ac, also AC) is transmitted from a… … Wikipedia
Clock generator — A desktop PC clock generator, based on the chip ICS 952018AF and 14.3 MHz resonator (on the left) … Wikipedia
Video signal generator — A video signal generator is a type of signal generator which outputs predetermined video and/or television waveforms, and other signals used to stimulate faults in, or aid in parametric measurements of, television and video systems. There are… … Wikipedia
FM4 Frequency Festival — The FM4 Frequency Festival, also Frequency Festival or just Frequency, formerly Vienna City Festival, is a music festival that takes place near Salzburg, Austria, usually every August. It is promoted by one of Austria s national radio stations,… … Wikipedia
генератор опорной частоты — — [Я.Н.Лугинский, М.С.Фези Жилинская, Ю.С.Кабиров. Англо русский словарь по электротехнике и электроэнергетике, Москва, 1999 г.] Тематики электротехника, основные понятия EN reference frequency generatorfrequency reference … Справочник технического переводчика
Crystal oscillator frequencies — Crystal oscillators can be manufactured for oscillation over a wide range of frequencies, from a few kilohertz up to several hundred megahertz. Many applications call for a crystal oscillator frequency conveniently related to some other desired… … Wikipedia
List of electronics topics — Alphabetization has been neglected in some parts of this article (the b section in particular). You can help by editing it. This is a list of communications, computers, electronic circuits, fiberoptics, microelectronics, medical electronics,… … Wikipedia
Microelectromechanical system oscillator — Microelectromechanical system (MEMS) oscillators are timing devices that generate highly stable reference frequencies. These reference frequencies are used to sequence electronic systems, manage data transfer, define radio frequencies, and… … Wikipedia
PLL multibit — A PLL multibit or Multibit PLL is a phase locked loop (PLL) which uses more of the information available in the PLL, to achieve improved performance. Unibit PLLs use only one bit of each counter s output bus, the most significant bit (MSB) to… … Wikipedia
Phase-locked loop — PLL redirects here. For other uses, see PLL (disambiguation). A phase locked loop or phase lock loop (PLL) is a control system that generates an output signal whose phase is related to the phase of an input reference signal. It is an electronic… … Wikipedia
