Oscilloscopes and Mystery Box (0505)

Oscilloscopes and Mystery Box

We began the class introduced to a piece of equipment named Cathode Ray Tube.The Cathode Ray Tube is an electrical component in some vacuum tubes that produces a narrow, collimated electron beam that has a precise kinetic energy. 

We were asked to predict how the Cathode Ray Tube on the Oscilloscope would change based off a change in voltage from a DC supply, we said the output would be shifted upwards and were correct because the y-axis is in units of voltage and adding voltage would just increase the y-intercept.

The oscilloscope showed a straight line because the voltage source is constant (battery). Here we used the y-division is 0.5; therefore, the voltage of the battery was roughly about 1.3 V.

Here we used the current generator connected to the oscilloscope. The lines jumped up and down continuously because the current changed the direction.

Here we input 96Hz to the scope. The interval peak to peak is 5.2 with 2mS. 1/(5.2*2*10^-3) is roughly about 96Hz.

We recorded our lab work on the white board.

The image above is Blue and Black(DC)

The image above is Red and Black (AC)

The image above is from Yellow & Black (Open) and Black & Yellow (Open)

The image above is from Black & Green (DC) and Black & Blue (DC)

Summary:

     In today’s class, we learned how to use the oscilloscope. We use different electronics to measure and visualize voltage changes. We learned to how to observant and to manipulate the settings on the machine to reveal the true wave patterns on screen. We learned many things about frequency and DC/AC circuits when connecting them to the oscilloscope. We find to use oscilloscopes in order to see voltage changes and use a simple amplifier to look at how analog electronics are used as a conversion to boost a weak signal into a sound we can hear