IOLITE®
TECHNICAL REFERENCE MANUAL
3.3.3. Sample rate
One of the most important settings is the sample rate. The sample rate defines how many data points
IOLITE® will transfer to DEWESoft®. A higher sample rate also means that more data needs to be
transferred via EtherCAT® to your computer.
The sampling speed mainly depends on your application. To display your signal in a time domain with a
good time resolution, you should sample 10 to 20 times faster than the frequency of the signal that you
want to measure, e.g. 1 kS/s for a 50 Hz sine-wave. If you have a lot of high frequency components, it may
be necessary to sample 100 times faster, e.g. 5 kS/s for the 50 Hz sine-wave, or even more. If you display
only the frequency domain (FFT analysis), a 2.5 times faster sampling would be sufficient (125 S/s for the
50 Hz sine-wave). The higher the sampling rate, the better the time resolution. But also the file size will
increase.
Sample rate
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