Day 17 Electronic

Measuring changing voltage:

In this lab, we set the function generator to 96 HZ then we got the graph above. We were asked to get the experimental and theoretical period which is T(period) = 1/f .
For theoretical : T = 0.0104
For experimental: T = 0.01
However there are no different between DC & AC

Triangular

Rectangular

Graphs above are the function generator triangular and rectangular setting, and both of them are 96 HZ.

DC Power Supply:

We were asked to find amplitude and period, but this graph make us hard to find it.

AC Transformer:

Amplitude: 20 V
Period: 0.017
frequency: 58.8 HZ

Lissajous Figure (AC Transformer)

frequency: 30 HZ

But we set it to oscilloscope in XY mode which come up with Lissjous figures.

frequency: 60 HZ
Shape was circular or oval.

Mystery Box:

We were asked to solve which one is useful one which can create waves or frequencies shape.

Red and Black

 

Square Frequency

Amp = 4V

Period = 0.0044s

Red and Blue

Square Frequency

Amp = 1.8V

Period = 0.0043 s

Red and Green

Square Frequency

Amp = 4V

Period = 0.0042s

Blue and Black

Random Frquency

Amp = 0.02 V

Period = 0.003s

Green and Black

Sinusoidal square Frequency

Amp = 0.008 V

Period = 0.0044s

Result:

Yellow : none complete wave

Rest determine the combination of square and sinusoidal frequencies.