= 20180227 =
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4292]]
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4293]]
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4294]]


== Today's activities ==
Workers: Simon, Akutsu
 * Replaced a tentative breadboard supporting photosensors, a coil, and a burndy connector with a small but vacuum compatible one; see [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4292|here]].
  * As described in the above link, the breadboard got rust during the natural dry after washing, so the rust was polished out and then again washed.
 * Relocated the photosensors, the coil, and the burndy connector.
 * Measured with the coil injection; see [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4293|here]]; needs more analysis.
  * Several couplings among the DoFs are observed and should be investigated [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4294|which is which]].
 * '''[Ongoing]''' Need cares of water springs from anchor bolts for oplev pylons.
 * '''[Ongoing]''' Need to confirm what are the scratch lines made by the measurement by the KEK team last week.

== Next plan ==
 * Complete the calibration of the oplev; the arm length was reported by Simon, so....
 * Check the balance of the suspended WAB with some wires and sensors are attached.
 * Check how the damping would be now after the replacement of the damping magnets.
 * Check the reproducibility of the alignment of the suspension among several modes.  
 * Check heights of several points.
 * Take care of water spring??

== Wanted! ==
 * Two burndy connectors, vacuum compatible.
 * '''''Stages outside the chamber''''' to ease wiping our legs.
 * Good '''''rail(?)''''' to move the WAB suspension in the cryostat in the main beam direction.
 * '''''Chain block?''''' to support the load in the chamber.
 * A clock to know the time easily.
 * M6 screw set.