Pulse width measurement with MultiQ

[clark]

I am trying to measure the pulse width of a signal with my PC, and I
just have Quanser multiQ PCI board that can do A/D,D/A,timer, encoder,
can any one tell me how can I do it? do I need to use the labview ?
thanks,

Clark

[Spencer S.]

Clark,

To obtain specific information concerning the programming required to perform a pulse width measurement with a Quanser multiQ PCI board, your best resource will be Quanser's website. It is available HERE. With regards to using a Quanser multiQ PCI board in LabVIEW, I was unable to find any available VIs on Quanser's website. However, if they provide a driver DLL, which I assume they do, you can easily control the board in LabVIEW. Below, I have included a link to a KnowledgeBase that provides detailed information concerning this option:

External Code for La
bVIEW - CIN / DLL - Starting Point

Good luck with your application.

Spencer S.

[Dennis_Knutson]

I looked at Quanser's web site and couldn't find any specs on the board so I hope you have the information to answer the question. If the board has counter timer circuitry, then you could use that depending on the width of the pulse, the accuracy of the daq board's clock, and the resolution that you need for the measurement. If you just have the A/D to use, then it might be possible to acquire a signal with the pulse in it and then use software to analyze the acquired waveform data and calculate a pulse width. Again, it would depend on the acquistion rate of the board and the pulse you're measuring. A narrow pulse with a slow acquisition rate is not a good combination. What software you use is optional. If Quanser provides a software utility that can do it a
ll, use it. If Quanser has a LabVIEW driver, than that would work too. If my answer seems a little vague, it's because you need to provide a bit more information. If no else chimes in with experience with Quanser boards, the best for a detailed answer would be Quanser.