Sensors & Software pulseEKKO, Product Manual

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System Configuration
111
Figure 6-6: Setting the Sampling Interval
Press the + and
–
buttons to toggle between Normal and High . Selecting High will double the
sample points if you need to have higher resolution of the reflected wave. Note that this also
increases data volume and may slow down data collection.
It is rare for the user to change this value, unless they have specific requirements.
The following table displays recommended temporal sampling interval for different frequencies:
Center Frequency
(MHz)
Recommended
Sampling Interval (ps)
12.5 6400
25 3200
50 1600
100 800
200 400
250 400
500 200
1000 100
6.1.5 Stacks
In noisy environments, one way to improve the signal to noise ratio is to collect more than one
trace at each position, average them, and then record the average trace; this is known as