mayra.diaz-acevedo@LIGO.ORG - posted 09:21, Thursday 14 July 2022 - last comment - 10:11, Friday 15 July 2022(63945)
In-Lock Charge Measurments
At around 8:45 this morning Sheila and I (Mayra Diaz) have ran the In-Lock charge measurements for ITMX, ITMY, and ETMY. The measurements where taken from 1341848718 until 1341849467.
This is what I ran to take all three measurements at once:
/opt/rtcds/userapps/trunk/sus/common/scripts/quad/InLockChargeMeasurements/run_charge_measurements.py
These where the frequencies that each TM was driven at: ETMY - 12 Hz, ITMX - 13 Hz, ITMY - 14 Hz
Then in /opt/rtcds/userapps/trunk/sus/common/scripts/quad/InLockChargeMeasurements/rec_LHO/ the files are:
ETMY_12_Hz_1341848839.txt
ITMX_13_Hz_1341848839.txt
ITMY_15_Hz_1341848839.txt
I have ran the measurements through the matlab analysis code:
cd /opt/rtcds/userapps/trunk/sus/common/scripts/quad/InLockChargeMeasurements/process_single_charge_meas.m
I have attached I got when running the analysis of ETMY,ITMX, and ITMY:
ETMY:
alpha: 2.9772x10-10, beta -2.4793x10-8, beta2: -1.977x10-8, gamma: 1.1861x10-10
ITMX:
alpha: 1.3175x10-11, beta: 3.8723x10-11, beta2: 7.6561x10-12, gamma: 2.8538x10-11
ITMY:
alpha: 1.8684x10-11, beta: 1.7050x10-9, beta2:1.7994x10-9, gamma: 2.6422x10-11