User manual

POSCOPE4 AND MEGA1+ MANUAL

www.poscope.com

X/Y SCOPE

There are applications where we need to know phase differences between two or more varying

voltages. Oscilloscope can be used to track phase differences between multiple input signals. X/Y

scope plots them out as one voltage versus another. If input signals are periodic resulting curves are

called Lissajous figures. We can use this tool in different fields:

 component characteristic (I-V curves),

 broadcast engineering (stereo – left/right),

 audio amplifiers (distortion between in & out),

 guitar tuning,

 etc.

For this example we need 1 oscilloscope (PoScopeMega1) and 2 voltage sources. Analog generator is

a standard feature of Mega1 oscilloscope, but since it’s a single-channel, we need 2 of Mega1

devices. In order to use multiple devices in PoScope4, go to Settings and set a higher number of

device instances.

AGEN1-CH.B AGEN2-CH.A

You can open the X/Y scope by clicking it’s icon in the DISPLAYS tab of PoScope 4 software: