Tektronix TDS2000C series User Manual page 62

Application Examples
Measuring Rise Time
38
NOTE.
The Positive Width measurement is available as an automatic measurement
in the Measure Menu. (See page 89, Taking Measurements.)
NOTE.
The Positive Width measurement also displays when you select the
Single-Cycle Square option in the AutoSet Menu. (See page 81, Square Wave
or Pulse.)
After measuring the pulse width, you decide that you need to check the rise time
of the pulse. Typically, you measure rise time between the 10% and 90% levels of
the waveform. To measure the rise time, follow these steps:
1. Turn the Horizontal Scale (seconds/division) knob to display the rising edge
of the waveform.
2. Turn the Vertical Scale (volts/division) and Vertical Position knobs to set
the waveform amplitude to about five divisions.
3. Push the 1 (channel 1 menu) button.
4. Push Volts/Div ► Fine.
5. Turn the Vertical Scale (volts/division) knob to set the waveform amplitude
to exactly five divisions.
6. Turn the Vertical Position knob to center the waveform; position the baseline
of the waveform 2.5 divisions below the center graticule.
7. Push the Cursor button to see the Cursor Menu.
8. Push Type ► Time.
9. Push Source ► CH1.
10. Push the Cursor 1 option button.
TDS2000C and TDS1000C-EDU Series Oscilloscope User Manual
Type
Time
Source
CH1
Δt 500.0µs
1/Δt 2.000kHz
ΔV 1.38V
Cursor 1
0.00s
0.98V
Cursor 2
500µs
-1.00V