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Lena/Dec 2016: Difference between revisions
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ElenaZhivun (talk | contribs) |
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# purple, gray = Z coil
# black, white = thermoresistor
== 12/09/2016 ==
Tested the polarimeter boards assembled by Alec. Most boards work, there are a few connectivity issues with the ones that don't work. Realigned the magnetometer and verified it works with the new Helmholtz system.
== 12/12/2016 ==
Found a bug in the FPGA firmware that affected the single channel magnetometer setup in Chamberlain. It prevented chrips from coming out due to a race condition. Making a measurement with the buffer gas cell to verify the new coils work correctly.
Resistor values in the current source in Chamberlain and WIMR are: 50 Ω, 50o Ω, 1 kΩ, 5 kΩ. The values in the chamberlain magnetometer VI have to be multiplied by 2 because of how the circuit is designed.
=== Buffer gas cell runs ===
* Run 09
** Noise 0 - magnetic field noise (other two didn't work)
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