All Forums  Origin Forum for Programming  Forum for Automation Server/COM and LabVIEW  Zero crossing phase diff. through digital samplin

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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Anti-Spam Code: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by Lucien85[/i] [br]A software is to be developed with Lab-View to record and compare two voltage signals simultaneously. The software shall be of the function to determine the time difference at the zero-crosses of the two signals with confirmed errors. The analyzed results will be interpreted as the phase differences to do phase calibrations. I am using 'Clark-Hess Model 5500-2 Digital phase standard' which generates 2 analog sine waves of the same frequency, connected to a PC with Labview via GPIB. May i know 1)How do i generate the waveform of the 2 sine waves concurrently on Labview? The instrument driver is not available and thus the driver samples are not available to me. 2)What sampling rate & resolution of the analog to digital converter hardware do i need? Or are there better/cheaper ways to digitize the 2 sine waves? 3)Using Labview, how do i perform linear regressions at the zero crossings of the signals to measure phase difference? [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.