Week of Sep. 11th 2018

[YoshinoriFujii]

=Taken-over=

• [ ] configure the STM-driver at IYV
  -> we have to wait until the circuit would be ready.

SR3

• prepare the masses and place
• measure resonant frequency vs. load
• Tune IP resonant frequency
• [ ] check the flexure information

=New to do=

ITMX

• [X] check the coil polarity for ITMX for IP
  • [ ] change the porality
• [ ] measure TF
• [ ] sensor diagonalization
• [ ] actuator diagonalization
• [ ] measure spectra with the environmental monitors like seismometer.
• [X] check if the IP coil driver is working.
• [ ] upload BF Yaw information onto Wiki.
• [ ] check if STM for F3/BF is working

ITMY

• [x] configure STM motor driver
• [ ] cabling
• [ ] try RT model reboot

SR2

• [ ] upload geophone information
• [ ] warn them about the noise level of geo-6.

PRM

• [ ] check the LVDT board circuit.

[YoshinoriFujii]

[YoshinoriFujii]

check if the IP coil driver is working.

It is working though, the 1st and 2nd peak of IPL have shifted: 1st: from ~100 mHz to ~150 mHz 2nd: ~220 mHz to 300 mHz

-> payload seems to be locked to the frame. see /users/VIS/TypeA/ITMX/TF/test/180913/TF_IPL_exc.xml

[YoshinoriFujii]

close simple loops for IP:

IP_DAMP_L: zpk([0.03],[0.0001;0.8;0.8],50,"n")gain(10) zpk([0.08;0.08],[5.71429+i5.59883;5.71429-i5.59883;5.55556+i8.31479;5.55556-i8.31479],1,"n")
IP_DAMP_T: zpk([0.03],[0.0001;0.8;0.8],50,"n")gain(10) zpk([0.08;0.08],[5.71429+i5.59883;5.71429-i5.59883;5.55556+i8.31479;5.55556-i8.31479],1,"n")
IP_DAMP_Y: zpk([0.3],[0.0001;0.9;0.9],50,"n")gain(1000)zpk([0.214286+i0.209956;0.214286-i0.209956], [7.14286+i6.99854;7.14286-i6.99854;8.33333+i12.4722;8.33333-i12.4722],1,"n")

[YoshinoriFujii]

configure STM motor driver

http://klog.icrr.u-tokyo.ac.jp/osl/?r=6162