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Hz

ID:15605
GUID:-
Type:UNIT
Version:52
Version date:2013-02-22
Status:DRAFT
Owner:IFD-Nederland

Names

en-INhertz
en-INHz
nl-NLhertz
nl-NLHz

Description

[en-IN]
1 Hz = 1 s-1


References

Table 2 - SI derived units with special names, including SI supplementary units
plane angle - radian (rad), solid angle - steradian (sr), frequency - hertz (Hz), force - newton (N), pressure/stress - pascal (Pa), energy/work/quantity of heat -joule (J), power/radiant flux - watt (W), electric charge/quantity of electricity - coulomb (C), electric potential/potential difference/tension/electromotive force - volt (V), capacitance - farad (F), electric resistance - ohm (Ω), electric conductance - siemens (S), magnetic flux - weber (Wb), magnetic flux density - tesla (T), inductance - henry (H), Celcius temperature - degree Celcius (ºC), luminous flux - lumen (lm), illuminance - lux (lx).
[ISO 31-00:1992.2.3.2.2]


hertz
[ISO 31-02:1992.2-03.a]


hertz
[ISO 31-05:1992.5-41.a]


hertz
[ISO 31-06:1992.6-01.a]


hertz
[ISO 31-07:1992.7-02.a]


Hertz
The hertz (symbol: Hz) is a measure of frequency, informally defined as the number of events occurring per second. It is the basic unit of frequency in the International System of Units (SI), and is used worldwide in both general-purpose and scientific contexts. Hertz can be used to measure any periodic event; the most common use for hertz is to describe frequency of rotation, in which case a speed of 1 Hz is equal to one cycle per second. More formally, the unit hertz is defined by the International System of Units (SI) such that the hyperfine splitting in the ground state of the caesium 133 atom is exactly 9 192 631 770 hertz, ? (hfs Cs) = 9 192 631 770 Hz. Equivalently, 1 Hz = 1/9,192,631,770 ? (hfs Cs). This definition is derived from the SI definition of the second. The base unit for hertz is s-1 (also called inverse seconds, reciprocal seconds). As hertz is commonly used to measure rotational speed, the base unit is sometimes represented as cycle/s.
[Wikipedia (En)]


Hertz
De hertz (symbool: Hz, geen meervoud) is de SI-eenheid van frequentie. De hertz wordt gebruikt bij periodieke (zich herhalende) verschijnselen. 1 Hz komt daarbij overeen met een periode van 1 seconde. Zou iemand regelmatig, éénmaal per seconde op een tafel tikken, dan heeft dat tikken een frequentie van 1 Hz. Tikt de persoon sneller, bijvoorbeeld tweemaal per seconde (de periode is dan 0,5 s), dan bedraagt de frequentie 2 Hz. In SI-basiseenheden uitgedrukt komt de Hz overeen met s-1.
[Wikipedia (Nl)]


Hertz
In the International System of Units, the derived unit of frequency; one (period or cycle of any periodic event) per second.
[Wiktionary (En)]