Analyze Waveforms
Use Vertical Cursors on a
Waveform
To use the curso
rs for a time measurement (T, 1/T), for a mVs-mAs-mWs
measurement, or for an RMS measurement of the trace section between the
cursors, do the following:
1. Press the Cursors button
2. Select the ׀
׀ cursors. The cursor type options are:
׀ : Single vertical cursor
׀׀ : Two vertical cursors
= : Two horizontal cursors
: Rise time cursor
: Fall time cursor
3. Select T
(time) for the measurement type. The measurement type options are:
T: time
1/T: 1/time or frequency
mVs: Millivolts per second
NOTE. This option varies depending on the probe type you have selected in
the channel button Probe menu. Other options include mAs (milliamperes
per s
econd) for current probes, and mWs (milliwatts per second) when y ou
are using the Mathematical function x and the probe type for one channel is
voltage and another channel is current. If you are taking cursor measurements
while using mathematical functions +, -,orx, no measurement will be
available if the input 1 and 2 measurement units are different. If you are using
the m athematical function FFT, you must activate cursors from the Cursor
bu
tton menu. You can then turn cursors on and off from the FFT menu. You
can read more about using the Mathematical functions. (See page 40.)
R
MS: Root mean squared
4. Press the function key under the MOVE menu item to highlight the left cursor
(if it is not already highlighted).
5. Use the left and right arrow keys to position the left cursor.
6. Press the function key under the MOVE menu item to highlight the right
cursor.
56 THS3000 Series Oscilloscopes User Manual
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