Oscilliscope

    In physics, one thing we learned about was an oscilloscope. An oscilloscope is a device that shows a visual representation of voltage over time. You can set the oscilloscope to receive voltage from anything using probes such as sound/sound waves, and electromagnetic waves (light, radio waves, x-ray waves). 

During the term, by connecting the oscilloscope to our laptop's sound as a source we analyzed wave patterns and how they are formed using the oscilloscope. We mainly used sine and square waves as they produced the best visual representations of the sound. Some things we saw and found were amplitude frequency, how different shapes sound, and wave interference.

Typically most oscilloscopes plot waves with amplitude(y-axis) vs time (x-axis). We did this at the beginning to see the sound waves but also we changed it by plotting a left channel on the y-axis and a right channel on the x-axis. By using two wave sources instead of one, we were able to generate a 3D visualization rather than 2d. Though to actually create 3d movement, I just slightly detuned (decreased the frequency) of 1 channel.


                                                  
                                                                   Time: x-axis, Amplitude: y-axis
                                                                            square wave in second image
                                                                


                                                    left (wave) channel:y-axis, and Right channel: x-axis
                                                                          square waves in both images

                                                                            

Another part I explored with the oscilloscope is harmonics. I combined waves with different ratios of frequencies to see the resultant/net wave produced due to wave interference. Some ratios analyzed were 1:2, 2:3, 2:5, 5:8, and 5:4.



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