deletions | additions       diff --git a/section_Methods_textit_experimental_set__.tex b/section_Methods_textit_experimental_set__.tex  index 22c640b..a197056 100644  --- a/section_Methods_textit_experimental_set__.tex  +++ b/section_Methods_textit_experimental_set__.tex 
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%techniques used to generate data \\}  Our setup consisted of a TeachSpin Earth's-Field NMR instrument, as well as two variable current inputs and an oscilloscope. The Earth's Field NMR instrument consisted of a solenoid, gradient coils, and Helmholtz coils, the magnetic field of which could all be varied separately. \textbf{(I will create and insert a more detailed figure of these)} A bottle of the substance for which we were performing NMR (in this case, water) was inserted into the center of the solenoid. The solenoid, with a coil constant of 15 mT/Amp, was used to apply a magnetic field to polarize the water. We could adjust the polarization time (time over which a field was applied) using the Earth's Field NMR instrument, and the magnetic field could be varied by using a variable current input. The field of the Helmholtz coils, which effectively artificially increased or decreased the Earth's magnetic field applied in the sample, was adjusted using a separate variable current input. The gradient coils changed the gradient of the magnetic field in the x, y, and z directions, but the gradient was not varied over the course of the experiment. A bandpass filter, part of the NMR instrument, was used to only let through the Larmor precession frequency and reduce and background noise such as 60 Hz fluctuations in the field due to current-carrying wires in the room. The oscilloscope, which was recording the variations in magnetization due to the Larmor precession, was triggered to start by the NMR instrument when the magnetic field from the solenoid stopped being applied. A simplified block diagram of the electronic setup for this is shown in Fig.~/ref{fig:block}. %%Our setup consisted of a TeachSpin Earth's-Field NMR instrument, as well as two variable current inputs and an oscilloscope. The Earth's Field NMR instrument consisted of a solenoid, gradient coils, and Helmholtz coils, the magnetic field of which could all be varied separately. \textbf{(I will create and insert a more detailed figure of these)}   %%In our experiment, we were performing NMR on $H_{2}O$. As shown in Fig. ,the bottle of water was inserted into the center of the solenoid. In order to perform the nuclear magnetic resonance, there are a few key parts of the apparatus to discuss.  %%The solenoid, a coil constant of 15mT/A, was used to apply a magnetic field to polarize the water. The field of the Helmholtz coils, which effectively artificially increased or decreased the Earth's magnetic field applied in the sample, was adjusted using a separate variable current input. The gradient coils changed the gradient of the magnetic field in the x, y, and z directions, but the gradient was not varied over the course of our experiment.  %%A bandpass filter, part of the NMR instrument, was used to only let through the Larmor precession frequency and reduce and background noise such as 60 Hz fluctuations in the field due to current-carrying wires in the room.   %%In order to measure our findings, the oscilloscope was recording the variations in magnetization due to the Larmor precession. In our experiment, we set the oscilloscope to voltage of the decaying signal. Depending on the relationship that we were studying, sometimes we measured a frequency by averaging over 10 cycles; whereas,sometimes we measured the amplitude of the voltage.   %%To summarize the different electronics used, a simplified block diagram of the electronic setup for this is shown in Fig.~/ref{fig:block}.