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| Oscilloscope |
Today, we looked at how an oscilloscope works. An oscilloscope can essentially measure anything such as brain waves or a simple sound by the use of a transducer.
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| Inside an Oscilloscope |
Inside the analog oscilloscope, there is something like this. The oscilloscope produces a graph on the screen by shooting electrons on the screen after passing it through different plates positioned vertically and horizontally. The graphs the electrons produce depend on what is the oscilloscope is measuring. In the case above, the oscilloscope is measuring sinusoidal alternating current. The amplitude of the graph depends on the max voltage of the AC.
Summary
Today we focused mainly on AC circuit analysis. AC circuit analysis is different from the circuits we have been analyzing before, because they contain time varying voltages. We learned how to convert Cartesian coordinates to Polar coordinates and back again in order to make our calculations simpler. This must be done because we are dealing with alternating current. We also learned about how oscilloscopes work.
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