pulse measurement for 500hhz signal

[Flamboyant]

I am using USB 6251 daq card. I need to measure the number of pulses arrived with in some start time and end time. the saignal can vary upto 500k hz.Also i need the pulse arrival time for all pulses.

if i configure  task for pulse width mesaurement in daqmx can i be able to measure the pulse count and pulse arrival time (upto 500khz)

[Pranchal Srivastava]

Hi,

     What do you mean by pulse arrival time ?

[Flamboyant]

Time of occurrence of each rising edge in the pulse train. If he signal is periodic, then we can add the ((pulse width)*n) seconds to the starting time(time at which first rising pulse occurred), here 'n'  is  the 'n'th pulse.

[Shreyas · Accepted solution]

I suppose what you are reffering to is the timestamp. when you use the low level VI's of DAQmx you can obtain the signals as waveform data type, which has the initial sample time t0, the sampling intervals dt as well the sample values array Y. You can do the rest by obtaining each of the parameters in waveform pallette.

Hope this helps!