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Madeline Horn edited textit_Johnson_Noise_To_perform__.tex
over 8 years ago
Commit id: 446fc6c95ef3f7c2035c9e5ef5fd46ac23e9ec40
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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.