The angular frequency is a quantity resulting from the rotational motion of a vector and is used in the calculation of frequency-dependent impedances and reactances. The angular frequency is designated by the Greek letter small omega 'omega'.

In order to be independent of the radius of the circle in the case of a rotational motion as represented by a sinusoidal signal, one does not specify the circumferential velocity but the velocity of the rotating vector. Instead of specifying the angle, which is 360 degrees for a full circle, one uses the radian of 2pi, where pi is a Greek letter and has a value of 3.14159265.... has. This value is obtained from the ratio of the circumference of the circle to the diameter of the circle.

Circular frequency representation with amplitude, phase and phasors

If the vector with radius 1 rotates once per second, then the distance traveled is 360 degrees or 2pi. The distance traveled is therefore proportional to the frequency of the rotating vector.

Determining the angular frequency

The vector to be assigned to a certain phase position is called phasor, which is derived from phase vector. It is measured with a vector measuring device.

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 Englisch: radian frequency Updated at: 24.01.2022 #Words: 192 Links: frequency (f), vector, indium (In), order, signal Translations: DE Sharing: