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Hoe to use Counter for pulse train generation with higher accuracy?

Hi, For one of our project there is a requirement to generate pulse train. Core requirement is that we have to generate a Torque Pulse follows one reference pulse & the delay of this torque pulse from reference pulse should be more precise means,this delay should have an accuracy of ± 2ns (ns-nano seconds). Our idea is to use counter to generate this pulse train.I have gone through the possible solutions from NI & to achieve this accuracy thought to use NI PXIe 6356 Which is having 100MHz base clock for counters.Since 100MHz=10ns will help me to achieve that much precise requirements of delay (multiples of 10ns will better give better accuracy).Against to this I have some more queries which are mentioned below. ·         Since I am not using analog output which has output rate of 3.33MS/s, will it be possible to utilize 100% base clock of 100MHz for counter to generate pulse train?       I called for support from NI & I got a reply that it is possible. So is it true?·         What is the rise time & fall time for this one period of clock?·         What is the possible deviation/Noise in this clock period of 10ns?·         What could be the delay in this clock period if we trigger the counter by using LabVIEW?·         What are the triggering sources & accuracy available internally to trigger the counter?·         How we can achieve better accuracy by using external triggering method? Your quick feedback on these queries will help us a lot. E-mail me to nilesh.adat@goodrich.com also. Thanks & Regards,

Nilesh

 

 
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