Would like to measure the amplitude of a signal as attached file 'Ori.jpg', if using N samples method (1k samples, 239kHz rate) for data acqusition, the result was perfect as file '1k_N.jpg'. But the speed was too slow.
Though the continuously sampling method carried out much faster, the values were not usable. As files '1k_continuous.jpg' . Do not know what cause these outliers, and it not occured occasionally. The 10.5537 should be the maxmum reading value of NI 6361.
Btw, is that impossible to accelerate the N sample method? Even tried 20 samples instead of 1000, the loop still cost similar time. The DAQ was not stopped in each loop.
Helps with either decreasing N sampling time or taking correct readings from continuously sampling method are greatly appreciated.
Pem