Madeline Horn edited subsection_Johnson_Noise_To_perform__.tex  over 8 years ago

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\section{Johnson Noise}  To perform the Johnson Noise Experiment, we used the Noise Fundamentals devices and two digital multi-meters. Our settings for the Noise Fundamentals devices were as follows: We did two trials, one with a  $10K$ ohm resistor, we used a Gain 1 (G1) of $600$ for all values that comes directly from the Noise Fundamental device, and one with  a Gain 2 (G2) of $1000$ for all values, we used $1K$ ohm resistor. We also did an experiment on  a room temperature of $295$ degrees Kelvin, and we varied the high and low pass filters' frequency for each data set $1$ ohm resistor  in order to vary the bandwidth. In Table 1, you can see how we varied the low pass filter (f2) and find  the high pass filter (f1) noise  inorder to change the bandwidth. The values are taken from the multi-meter after going through  the filters, gain, and multiplier. All of the values are in mV; we took $36$ sets of data points. apparatus used.