- Alternating frequency
- Частота изменения.
Краткий толковый словарь по полиграфии. 2010.
Alternating frequency
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Alternating current — (green curve). The horizontal axis measures time; the vertical, current or voltage. In alternating current (AC, also ac) the movement of electric charge periodically reverses direction. In direct current (DC, also dc), the flow of electric charge … Wikipedia
Frequency (disambiguation) — Frequency refers to how often an event occurs within a period of time.It may also refer to: General * Audio frequency, a periodic vibration whose frequency is audible to the average human. * Statistical frequency, the number of times an event… … Wikipedia
Frequency — For other uses, see Frequency (disambiguation). Three cyclically flashing lights, from lowest frequency (top) to highest frequency (bottom). f is the frequency in hertz (Hz), meaning the number of cycles per second. T is the period in seconds (s) … Wikipedia
Frequency changer — A frequency changer or frequency converter is an electronic device that converts alternating current (AC) of one frequency to alternating current of another frequency. The device may also change the voltage, but if it does, that is incidental to… … Wikipedia
alternating current — Synonyms and related words: AC, DC, absorption current, active current, conduction current, convection current, cycle, delta current, dielectric displacement current, direct current, displacement current, eddy current, electric current, electric… … Moby Thesaurus
frequency — /free kweuhn see/, n., pl. frequencies. 1. Also, frequence. the state or fact of being frequent; frequent occurrence: We are alarmed by the frequency of fires in the neighborhood. 2. rate of occurrence: The doctor has increased the frequency of… … Universalium
alternating current — an electric current that reverses direction at regular intervals, having a magnitude that varies continuously in sinusoidal manner. Abbr.: ac Cf. direct current. [1830 40] * * * ▪ electronics abbreviation AC flow of electric charge that… … Universalium
frequency changer — noun or frequency converter : a motor generator used to change the frequency of an alternating current circuit with or without a phase or voltage change … Useful english dictionary
alternating current (AC) — Flow of electric charge that reverses periodically, unlike direct current. It starts from zero, grows to a maximum, decreases to zero, reverses, reaches a maximum in the opposite direction, returns again to zero, and repeats the cycle… … Universalium
Frequency — The number of cycles which an alternating current moves through in each second. Standard electric utility frequency in the United States is 60 cycles per second, or 60 Hertz. California Energy Comission. Dictionary of Energy Terms … Energy terms
