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unit

Frequency

periodic process

Definition

The frequency (periodic process) is the physical measure, which defines the periodical process and expresses the repeats number of the cycle in a period. The frequency is the inverse value of the period.

1 hertz is the frequency, for which in 1 second there takes place an alternation or 1 cycle of the periodical process.

 

system of units:   SI;
statute:   derived unit (with a special name);
name the value:   f;
unit name:   hertz;
symbol unit:   Hz;
relationship of definition:   υ = n/t;
dimension:   T-1;
expression in other units:   s-1;

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Units of measurement

namesymbol value in SI unit:
Hz
note
1 unit per hourh-1≈ 2.(7) × 10-4(1)
1 unit per minutemin-1≈ 0.01(6)(2)
1 unit per seconds-1= 1.0(3)
1 cycle per hourcph≈ 2.(7) × 10-4 
1 cycle per minutescpm≈ 0.01(6) 
1 cycle per secondcps= 1.0 
1 revolution per minuterpm≈ 0.01(6) 
1 revolution per secondrps= 1.0 

Note:

(1) - 1/h;

(2) - 1/min;

(3) - 1/s;