243
edits
Lena/Oct 2016: Difference between revisions
Jump to navigation
Jump to search
→BACK/NEXT
ElenaZhivun (talk | contribs) |
ElenaZhivun (talk | contribs) |
||
|
[[Lena/Sep 2016|<< BACK]] [[Lena/Nov 2016|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.
[[File:Passive PD connection schematic.png|300px]]
| |||