Introduction:
We will use the following:
- an Oscilloscope
- a Function Generator set to 5kHz sine wave and 5 Volts
- a DMM
Experiment:
The oscilloscope was adjusted to show about 2 periods and above the x-axis. The period is 200 microseconds. The voltage was adjusted to have a peak-to-peak voltage of 5 volts. The was a measured DC voltage of 0V and an AC voltage of 1.05V.
Next we set DC offset on the Function Generator measured a DC voltage of 2.517V and an AC voltage of 1.051V. It showed the following:
Next we had the function generator display square waves. The square waves gave a DC voltage of 2.516V and and AC voltage of 1.375V. The Oscilloscope displayed the following:
Finally, we were given a mystery signal to identify. Once the oscilloscope was properly adjusted.we saw the following:
From this we identified the signal as a time varying ramp function!
Conclusion: Oscilloscopes can show voltage in a circuit as well as how it varies with time. It can also calculate frequency and allows one to focus on certain parts of a signal.
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