Madeline Horn edited subsection_Mehod_for_Shot_Noise__.tex  over 8 years ago

Commit id: 40457021129224414610fa3163e838b41789cf36

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To avoid saturating the values of Vsq (read from the multimeter attached after the signal ($V_{sq}$) went through the filter, the gain, and the multiplier) we had to vary the gain ($G2$) from $\times5000$, to $\times4000$, and finally to $\times3000$. Our multiplier had a setting of AxA because we needed to square the signal. We recorded the Vsq values in Volts and we recorded the V across the photo-diode in mV. $V_{sq}$ is the signal that has been filtered.  To obtain all of our voltage values for Johson Shot  Noise, we averaged 100 data points using the multi-meter. This reduced our error significantly as instead of 36 data points per resistance, there are actually 3,600 data points. significantly.  Figure \ref{fig:ShotSchem} shows the diagram for how to set up the Noise Fundaments for Shot Noise.