AC1 Fundamentals Unit 2 – AC Measurements
Exercise 4 – Phase Angle
EXERCISE OBJECTIVE
When you have completed this exercise, you will be able to measure phase angle by using an
oscilloscope. You will verify your results with information found in this exercise.
DISCUSSION
- The number of degrees separating two sine waves of the same frequency is referred to as
phase angle. - The waveforms must have the same frequency but, do not necessarily have the same
amplitude. - The degree of phase shift created by circuit components can be determined by comparing and
measuring the phase angle between the input and output waveforms. - Phase angle can be measured using the oscilloscope. One channel displays the reference
waveform while the other channel displays the second signal. - A lagging waveform is shifted to the right of the reference.
- A leading waveform is shifted to the left of the reference.