many updates
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@@ -1,3 +0,0 @@
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invalid color string: rgba(50, 48, 47)
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(termite:25037): GLib-WARNING **: 14:10:26.520: GChildWatchSource: Exit status of a child process was requested but ECHILD was received by waitpid(). See the documentation of g_child_watch_source_new() for possible causes.
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@@ -1,5 +1,5 @@
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* DONE Measure of the noise of the Voltage Amplifier
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CLOSED: [2019-05-06 lun. 09:00]
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CLOSED: [2019-05-06 lun. 09:00]
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- The two inputs (differential) of the voltage amplifier are shunted with 50Ohms
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- The AC/DC option of the Voltage amplifier is on AC
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- The low pass filter is set to 1hHz
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@@ -13,7 +13,7 @@ meas6: Ampli ON 60dB
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meas7: Ampli ON 80dB
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* DONE Measure of the noise induced by the Slip-Ring
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CLOSED: [2019-05-06 lun. 09:28]
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CLOSED: [2019-05-06 lun. 09:28]
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Setup:
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- 0V is generated by the DAC of the Speedgoat
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- Using a T, one part goes to ADC
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@@ -33,7 +33,7 @@ Measurements:
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- meas11: Slip-Ring ON and omega=60rpm
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* DONE Measure of the noise induced by the slip ring when using a geophone
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CLOSED: [2019-05-06 lun. 09:28]
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CLOSED: [2019-05-06 lun. 09:28]
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The geophone is located at the sample location
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The two Voltage amplifiers have the following settings:
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- AC
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@@ -58,7 +58,7 @@ Redone the measurements with 1kHz additional low pass filter:
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- meas17: Slip-Ring ON
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* DONE Measure of the influence of the AC/DC option on the voltage amplifiers
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CLOSED: [2019-05-06 lun. 09:28]
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CLOSED: [2019-05-06 lun. 09:28]
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One geophone is located on the marble.
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It's signal goes to two voltage amplifiers with a gain of 60dB.
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On voltage amplifier is on the AC option, the other on the DC option.
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