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3.6. Application of X-Y function
Viewing Impedance Changes in a Network
Connect the oscilloscope to monitor the input and output of the circuit
To view the input and output of the circuit in an XY display, follow these steps:
1
）
Press the “CH 1” MENU button and set the Probe option attenuation to 10X.
2) Press the “CH 2” MENU button and set the Probe option attenuation to 10X.
3). Set the switch of the probe to 10X.
4). Connect the channel 1 probe to the input of the network, and connect the channel
2 probe to the output.
5). Press the “AUTO” button.
6). Turn the “Volts/div” knobs to display approximately the same amplitude signals
on each channel.
7). Press the “DISPLAY” button.
8). Press the Format option button and select “XY”.
The oscilloscope displays a Lissajous pattern representing the input and output
characteristics of the circuit.
9).Turn the VOLTS/DIV and VERTICAL POSITION knobs to optimize the display.
10).Press the “Persist” option button and select “Infinite”.
11).Press the “Intensity” or “Brightness ” option buttons and turn the “Universal
”
knob to adjust the contrast of the screen.
12). Apply the Ellipse method to observe the phase difference between the two
channels
Summary of Contents for SDS1000 Series
Page 146: ...138 Coupling DC...
