BLUE: Output of filter bank during an FM9 turn off. This is the transient which goes to the DAC.
The transients are mostly of the same magnitude as this.
RED: This is the input of the filter module during another such transient.
GREEN: Tried another switch; this time I filtered the time series in DTT by typing the SimDW into
the Triggered Time Series filter field. This should be simulating what comes out of the
output of the DW board - to convert to volts multiply by 15/32768.
PURPLE: Same kind of filtering as the GREEN, but with also a double 30 Hz highpass to remove the low
frequency damping control signals. You can see that the total transient is only ~5 counts
or ~1 mV at the coil driver output. This is comparable to the relative offset in the bypass
and filter paths.
- setsval.m uses mDV to get the minute trend from some specified start time
and duration in the past. It then writes that 'good' value to the
.SVAL field of the SUSPOS, SUSPIT, and SUSYAW records for all the
- setHILO.m reads the .SVAL field and then sets the alarm levels and severity
for the same records given a "sigma" as an argument. i.e. 1 sigma = HIGH,
2 sigma = HIHI.
OD = 0.0036" = 0.091 mm
Length = 46" = 1168.4 mm
Resistance = 33.3 Ohms
resistivity = R * pi * (OD/2)^2
----------------- = 1.85e-7 Ohm-meters
resistivity (Ohm-meter x 10^-7)
304 Stainless 7.2
316 Stainless 7.4
Cast Steel 1.6
SRM, ITMX, ETMX, ITMY and ETMY lost damping at 4:55am this morning from 4.8 magnitude earthquake.
Their damping were restored.
C1:SUS-ITMX_URSEN_OUTPUT swich was found in off position. It was turned on.
MZehnder and MC were locked.
The WFS qpd spot needs recentering
ITMX, ITMY, BS, SRM, PRM op levs were all recentered. ETM's looked okay enough to leave as-is.
ETMY sus damping was found to be tripped.
It was retored.
All fluorecent light were turned off. Please try to conserve some energy.