Procedure And Results During This Lab You Will Be Asked To Make Several Plots Of What You See On The Oscilloscope Screen 1 (81.94 KiB) Viewed 26 times
Procedure and Results During this lab you will be asked to make several plots of what you see on the oscilloscope screen. Making neat and accurate plots is an important part of reporting laboratory results, so you will be asked to take care to do a good job with this. In particular: a) Be sure your plots are large enough to be read accurately. In general, you should take at least half a page to draw a good graph. Be sure your graphs have axes that include tick marks, numbers along the tick marks (scales), axis labels indicating what is being plotted, and correct units. If you wish to label these plots with variables such as the time constant t, that is fine, as long as you also include numbers as well. b) If your graphs do not conform to these rules, the grader will subtract credit from your report. Although there is software and online tools that allow for making plots very conveniently, for this lab we want you to make these plots by hand. The experience you get from this exercise will help you to understand the material better. Step 1: Examine the circuit shown in Figure 1. Calculate the time constant of this circuit and record it in Table 1 column 1. If you assume that a voltage source with a Thévenin resistance of 50[22] is connected to the input port labeled VIN and that the oscilloscope is connected to the output port, labeled vour, would the time constant change? You will soon find out with your oscilloscope measurements, but for now just write down your prediction in column 2 of Table 1.
+ vc + VIN 0.022 [μF] Figure 1. First of Two RC Circuits. T calculated 47[k] YOUT Table 1: Time Constant Measurement; Circuit 1 T calculated including instrument resistance T measured (0 to 5[V]) 7 measured (5 to 0[V])
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