Hai all..
Im using the counter port in Usb 6009 to measure the engine rpm for every 0.1s and save it in lvm file.Aquistion and and logging of data at initial stage say for 10 mins pulse generated is acurate and data are stored for every 0.1s,after 10th minute acquistion speed and and logging speed goes slow and instead of acquiring data for for every 0.1s it measures for 0.12,0.14,0.16, ...0.2,0.3s..and stores it.Due to this i miss n number of pulses and i couldn't provide the proper time resolution.
After an analysis i found that the acquistion depends on both hardware used and the system used.
My system Configuration is
Intel core 2 Duo CPU
2.67GHz, 1GB Ram
can anybody suggest a solution for the above problem,is there any other wya to measure the signals without any loss and delay.?
