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Phase between signal

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  • November 3, 2009 um 1:40 am Uhr #12576
    mathias andriamisainamathias andriamisaina
    Mitglied

    Hi,

    I would like to trace the evolution of the phase between two signals ( voltage and current ).
    How can I do this with flexpro 8 ?

    Thx for help.
    NNRZ

    November 3, 2009 um 1:40 am Uhr #8239
    mathias andriamisainamathias andriamisaina
    Mitglied

    Hi,

    I would like to trace the evolution of the phase between two signals ( voltage and current ).
    How can I do this with flexpro 8 ?

    Thx for help.
    NNRZ

    November 3, 2009 um 7:25 pm Uhr #8927
    Bernhard KantzBernhard Kantz
    Teilnehmer

    Calculate the time delay between the two signals and the frequency of the signals. E.g. you could calculate the level crossings (level 0) using the event isolation analysis object to receive the time delay. After that you can use the following formula:
    phase = 2 * PI * frequency * delta t

    support@weisang.com

    November 6, 2009 um 12:00 am Uhr #8928
    mathias andriamisainamathias andriamisaina
    Mitglied

    It does not really answer my needs because the phase is not constant between the two signals and I would like to trace the phase shift evolution.
    I already have a method using power calculation but it works only with pure sine signals.

    November 7, 2009 um 1:27 am Uhr #8929
    Bernhard KantzBernhard Kantz
    Teilnehmer

    You can calcalute the phase of as signal using the FourierSpectrum analysis object (result type phase).
    Calculate the phase of both signals. After that you can calcuate the difference between both phase signals: Phase1 – Phase2

    support@weisang.com

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