data overlap or shift when i make a continuous counting of pulse width

[benjamin79]

hello,

I have problem when i ma a buffering continuous counting of pulse width , if i want to wount more 570 000 sample at 100 khz , my data has shift after one read and shift continuous after read time.

i try to increase the size of buffer, to read the buffer in many time, and i haven't a error in output of read vi

thanks for help

[ElRambo]

Hello,

What kind of hardware and software do you use ?

Regards,

[benjamin79]

yes sorry,

i use labview 7.1 with a 6602 pci card

[akella]

Hi

I am trying build an auto-correlator using PCI-6602, BNC-2121and LabVIEW8.5. I am using the "buffered period measurement" function of the PCI 6602. I acquire data in packets of 1000 samples and then append it to an array. i have a problem with the first point of every 1000 points, which is generally shifted (the shift is random). i m sure that it is not the problem with my experimental set-up, since i checked it with a known gate signal. if any one of u think that there is a better way to do it. pls suggest me.

thanks 

sathish.