Rename folders. Put data in correct folder

slip-ring-electrical-noise/index.org

@@ -573,6 +573,28 @@ Finally, we compare the Amplitude Spectral Density of the signals (figure [[fig:
 #+end_important
 
 * TODO New LPF at 1kHz
+Voltage amplifier:
+- 60db
+- AC
+- 1kHz
+
+Additionnal LPF at 1kHz
+
+- meas35: All off
+- meas36: slip-ring ON
+
+geophone at the sample location
+slit into 2 BNC:
+- first one (column one): direct wire
+- second one (second column): slip-ring wire
+
+Each of the signal is amplified by voltage amplifier:
+- 60db
+- AC
+- 1kHz
+
+Additionnal LPF is added before the voltage amplifiers
+
 * Effect of the rotation of the Slip-Ring - Noise
   :PROPERTIES:
   :header-args:matlab+: :tangle matlab/meas_effect_sr.m
@@ -939,3 +961,20 @@ And we plot the ASD of the measured signals (figure [[fig:sr_psd_compare]]);
 #+begin_note
   All the files (data and Matlab scripts) are accessible [[file:data/meas_slip_ring_lpf.zip][here]].
 #+end_note
+
+** Description
+
+Voltage amplifier:
+- 60db
+- AC
+- 1kHz
+
+Additionnal LPF at 1kHz
+
+- meas30: All off
+- meas31: Slip-ring on
+- meas32: slip-ring 6rpm
+- meas33: slip-ring 60rpm
+
+Channel 1: direct
+Channel 2: slip-ring