Counter
The counter is used to measure the frequency and period of a signal or count the events happening within it. The counter
is asynchronous to the acquisition system of the oscilloscope. It can work well even if the acquisition of the oscilloscope
is stopped (indicated by a red-colored Run/Stop button)
18.1
Counter Configuration
To enable the counter function:
1.
Touch
Analysis > Counter
on the menu bar.
–
The
Counter
will be displayed.
2.
Touch
Counter
to toggle the counter function on and off.
3.
Touch
Mode
to select the counter mode. See section
for more de-
tails.
4.
Touch
Source
to select an analog channel.
5.
Touch
Level
to adjust the level of the counter using the
Universal Knob
or
the virtual keypad.
6.
Touch
Statistics
to toggle the statistics table on and off.
7.
Touch
Reset Statistics
to reset the count used to calculate the statistics
values.
–
Pressing the
Clear Sweeps
key will also restart statistics.
Statistics
When statistics are enabled, the counter will increment the data and display the
statistics results on the screen.
Figure 18.1
Counter Menu
Figure 18.2
Statistics Table
•
Value
: The latest count
•
Mean
: The average of all historical counts
•
Min
: The minimum of all historical counts
•
Max
: The maximum of all historical counts
•
Stdv
: The standard deviation of all
historical counts, used to judge the
distribution of historical count parameters
•
Count
: Number of counts obtained
