Angular frequency

Discussion in 'General Electronics Chat' started by sharanbr, Jul 18, 2015.

  1. sharanbr

    Thread Starter Active Member

    Apr 13, 2009
    76
    1
    Dear All,

    I would like to get understand the concept of angular frequency. I do understand that it is rotation rate.
    However, I am not able to appreciate how that is related to regular frequency in Hz, which is measured in cycles per second.

    For example, if I take a a sine signal with N cycles per second. How does it show up in terms when seen with angular frequency?
    How does a signal which almost never repeats (not a periodic signal in time domain) look like in angular terms?

    Thanks,
     
  2. cmartinez

    AAC Fanatic!

    Jan 17, 2007
    3,574
    2,543
    In the above quote, italics are mine. Are you familiar with Fourier transforms?
     
  3. DickCappels

    Moderator

    Aug 21, 2008
    2,656
    632
    Angular frequency is, as you stated, the rate of rotation. In the case of a continuous signal, you could say that the angular frequency is 2 x Pi x Hz radians per second, or 360 x Hz degrees per second. The angular frequency of the 50 Hz power line feeding my house is 18,000 degrees per second.

    I will leave the more difficult question for somebody else.
     
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