هرتز

Also known as Hz, cps, CPS, cycles per second

یکای اندازه‌گیری فرکانس در SI

AI overview

A hertz is a unit that measures how often something repeats per second—for example, a sound wave vibrating 440 times per second has a frequency of 440 hertz. It matters because it's the standard way scientists and engineers worldwide describe the speed of any recurring event, from the pitch of musical notes to the signals in wireless networks.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Unit.name: hertz
Unit.image: FrequencyAnimation.gif
Unit.caption: Top to bottom: Lights flashing at frequencies , and ; that is, at 0.5, 1.0 and 2.0 flashes per second, respectively. The time between each flash – the period T – is given by (the reciprocal of f); that is, 2, 1 and 0.5 seconds, respectively.
Unit.standard: SI
Unit.quantity: frequency
Unit.symbol: Hz
Unit.dimension: T−1
Unit.namedafter: Heinrich Hertz
Unit.extralabel: In SI base units
Unit.extradata: s−1