Madeline Horn edited textit_Johnson_Noise_To_perform__.tex  over 8 years ago

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\textit{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: 10K $10K$  ohm resistor, we used a Gain of 1000 $1000$  for all values, we used a room temperature of 295 $295$  degrees Kelvin, and we varied the high and low pass filters' frequency for each data set in order to vary the bandwidth. We varied our high pass filter one as follows: we started with 10 $10$  Hz, 30 $30$  Hz, 100 $100$  Hz, 300 $300$  Hz, 1000 $1000$  Hz, and 3000 $3000$  Hz. We varied our low pass filter as follows: we started with 0.33K $0.33K$  Hz, 1K $1K$  Hz, 3.3K $3.3K$  Hz, 10K $10K$  Hz, 33K $33K$  Hz, and 100K $100K$  Hz. We recorded all the values from the multi-meter for each combination of filters. For example, when we had a low pass of 0.33K $0.33K$  Hz, a high pass of 10 $10$  Hz, our measured value was $5.13$ mV. In the end, we took 36 sets of data points.