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Fri Sep 30 06:25:20 2011, kiwamu, Update, LSC, Calbiration of BS, ITMs and PRM actuators
Sat Oct 8 00:44:42 2011, kiwamu, Update, LSC, calibration of SRM actuator
Fri Sep 30 06:25:20 2011
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Calbiration of BS, ITMs and PRM actuators
The AC responses of the BS, ITMs and PRM actuators have been calibrated.
To perform some interferometric works such as
, the actuator responses must be measured.
BS = 2.190e-08 / f
ITMX = 4.913e-09 / f
ITMY = 4.832e-09 / f
PRM = 2.022e-08 / f
The same technique as I reported some times ago (
) were used for measuring the BS and ITMs actuators.
In order to measure the PRM actuator, power-recycled ITMY (PR-ITMY) was locked and the same measurement was applied.
The sensor response of PR-ITMY was calibrated by exciting the ITMY actuator since the response of the ITMY had been already measured.