Hello,
i am currently using a tektronix DPO7254 oscilloscope for data acquisition controlled with labview.
i will explain you my problem:
the idea is to acquire (at least) 100 waveforms per second with labview 8.5;
i made a programme with the ready-to-use vi's for the DPO7000 series from www.ni.com..
(http://sine.ni.com/apps/utf8/niid_web_display.model_page?p_model_id=8903)
i have the following settings:
DPO7254
sample rate: 100Ms/s
horizontal scale: 10µs/div --> horizontal range: 100µs
so, according to those settings, that should be 10000 samples per waveform, resulting in 10ns/pt
triggering is made with a given trigger (on another channel), synchronized at 100 Hz,
which means that there is a triggering signal every 0.01 s
theoretically i should acquire every 0.01 s a waveform (in 'single shot' mode on the scope),
resulting in 100 waveforms per second..
actually i receive a waveform approx every second, so it takes me ages to acquire 100 waveforms..
(according to the data sheet that scope is able to acquire 250,000 WFMS/s..)
is that problem related to the slow GPIB connection between the scope and the computer?
are there any hidden time-delays in talking/listening mode when using labview?
do you have any solutions to that problem (acquiring as many waveforms as possible in a short time)?
best,
E
