Lena/Oct 2016: Difference between revisions
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== 10/03/2016 == |
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=== fMCG setup TODO === |
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* Feedback system to keep the fields from "running away". Only the main XYZ fields need to be stabilized, the gradients don't change much day to day |
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* Reduce the polarimeter noise when misbalanced |
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=== Eliminating Polarimeter noise when misbalanced === |
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The existing current amplifier consists of two photodiodes connected in a way to add or subtract their photocurrents. The output of this passive circuit is connected to SRS current preamplifier SR570. |
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[[File:Passive PD connection schematic.png|300px]] |
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Revision as of 19:52, 3 October 2016
October 2016
BACK/NEXT
10/03/2016
fMCG setup TODO
- Feedback system to keep the fields from "running away". Only the main XYZ fields need to be stabilized, the gradients don't change much day to day
- Reduce the polarimeter noise when misbalanced
Eliminating Polarimeter noise when misbalanced
The existing current amplifier consists of two photodiodes connected in a way to add or subtract their photocurrents. The output of this passive circuit is connected to SRS current preamplifier SR570.
