pulse width measurement

[JÞB]

Much better with the DAQmx Task.

Wire "Data" directly into pulse measurements (you need the timing information!) and the pulse duration will be in seconds rather than in samples

[29071985]

Dear Jeff!

i try to do follow what u say! but i recieved ... no result!

this is my pic, show to u!

do u want my program ( *.VI)

help me! thanks!

[crossrulz]

It would be best to have the actual VI.  Be sure to save the front panel defaults before sending on (Edit->Make Current Values Default).

[JÞB]

Check "Polarity" and "Export mode"

There isn't a full cycle of data so duty cycle can't be calculated

[29071985]

hii Crossrulz

i do that, but ... i have no more!

this is my program! help me check!

thanks!

[29071985]

hii Jeff

i check about that!

i have .... nothings, this my program!

help me

[29071985]

My program!

[crossrulz]

If you read the dt from the DAQmx data, what do you get.  For some reason, the graph has 0 for the dt when I change it to a control.  This could cause some problems.

[crossrulz]

I also found that you want export mode to be "no period and duty cycle" and the polarity should be "low pulse".

NOTE:  I only set the dt for the waveform because the graph was giving me a dt of 0.  Coming out of the DAQmx Read should have a non-zero dt.

[29071985]

Dear Crossrulz!

i know, i have many problem in may program! but i do not know how to correct that!

help me! i need to finish this next week!

thanks! because this is first time i do with labview!