User name Peter L
Log entry time 05:33:34 on June15,2004
Entry number 125821
This entry is a followup to: 125729
keyword=DAQ scan positions and ref. voltagesHere are the DAQ scanner position plots from run 2143. They match
the Labview outputs. I forgot to mention that the scale on the
short steps is .5cm per step and the longer steps are at 2cm per
step (you can read this on the Labview output in my previous entry).
It seems that our problem reported in entry 125729 has disappeared...
The top plot is the left (y position vs event num) and the bottom
is the (reference voltage vs ev_num) varying on the order of a few
mV. Recall that when we tried to calibrate the left side a few days
ago our reference voltage fluctuated greatly starting when the short
axis was maxed out and the long was at its minimum(described in
followup). In the data pictured it does not occur. What happened
the other day is still somewhat of a mystery.
Another related log entry is 125733 where the right side equivalent is shown during the run where we had problems with the left.
FIGURE 1
FIGURE 2
