Tektronix TDS2000C series - Viewing Impedance Changes in a Network

Application Examples
6. Push the Operat
ion option button and select -.
7. Push the CH1-CH2 option button to display a new waveform that is the
difference be
tween the displayed waveforms.
8. To adjust the vertical scale and position of the Math waveform, follow these
steps:
a. Remove the channel 1 and channel 2 waveforms from the display.
b. Turn the c hannel 1 and channel 2 Vertical Scale and Vertical Position
knobs to adjust the vertical scale and position of the Math waveform.
For a more stable display, push the Single button to control the acquisition of
the waveform. Each time you push the Single button, the oscilloscope acquires
a snapsho
t of the digita l data stream. You can use the cursors or automatic
measurements to analyze the waveform, or you can store the waveform to analyze
later.
Viewing Impedance Changes in a Network
You have designed a circuit that needs to operate o ver a wide temperature range.
You need to evaluate the change in impedance of the circuit as the ambient
temperature is changed.
Connect the oscilloscope to m onitor the input and output of the circuit and capture
the changes that occur as you vary the temperature.
50 TDS2000C and TDS1000C-EDU Series Oscilloscope User Manual