Leaderboard

Assuming your pulse is a pulse on the strain gauge itself and not the lightbar, the specifications of the hardware you selected should be capable of capturing a pulse in that range. I would recommend taking buffered measurements with a Windows system. If you need to react to this pulse as it occurs, you may need a real-time system instead. The NI 9237 can capture at 50 kS/s (or 20 us per sample) - http://www.ni.com/pdf/manuals/374186a_02.pdf. This is more than enough to detect your pulse without aliasing (>2 times the frequency) and to give a decently accurate representation of the signal (>10 times the frequency - http://www.ni.com/white-paper/13655/en/). The NI 9425 is less clear, but it appears to be able to measure down to 8 us per sample - http://www.ni.com/pdf/manuals/373782b_02.pdf. However it may not be capable of buffered measurement (https://forums.ni.com/t5/Digital-I-O/Can-NI-9425-DI-be-buffered/td-p/3368527).