Reports until 21:32, Tuesday 02 May 2023
H1 ISC (CAL, SQZ, TCS)
jennifer.wright@LIGO.ORG - posted 21:32, Tuesday 02 May 2023 - last comment - 17:00, Wednesday 03 May 2023(69261)
Measuring SRC detuning during thermalisation

Jennie, Camilla, Vicky

I used Craig and Camilla's code in /ligo/gitcommon/noise_recorder to measure the DARM OLG and the PCAL to DARM TF in order to look at the SRC detuning over thermalisation and whether we can change it.

To measure the DARM TF use:

darm_noise_injection_caller.py

but change the common_name_prefix to reflect your specific measurement (ie. SRCL1 offset).

pcal_noise_injection_caller.py

but change the common_name_prefix to reflect your specific measurement (ie. SRCL1 offset).

darm_sensing_function_processor.py

make sure the .hdf5 filenames for the pcal and darm measurements are correct, and make sure you have updated date_str to reflect the correct date and label_prefix to reflect the common name label of the two measurements. Also copy across the PCAL measurement to the DARM measurement folder as these will have been saved separately due to different time stamps. Then change date_dir_str to the name of the DARM measurement directory. I just made a new process_sensing_function_measurement() function in the script for each measurement I had to do.

SRCL1 OFFSET

Time Into Lock DARM Injection Start PCAL > DARM Injection Start DARM Measurement hdf5 file PCAL Measurement hdf5 file Processed Data Folder (.txt)

Figures Folder

(.pdf)

-165 3 mins 1367105753 1367105978  /ligo/gitcommon/noise_recorder/data/darm_noise/202305021635/darm_noise_srcl_-165_src1_p_-6_50_6_50_Hz_gps_start_1367105753.hdf5 /ligo/gitcommon/noise_recorder/data/darm_noise/202305021639/pcaly_srcl_-165_src1_p_-6_50_6_50_Hz_gps_start_1367105978.hdf5 /ligo/gitcommon/noise_recorder/data/darm_noise/ /ligo/gitcommon/noise_recorder/figures/darm_noise/
 
-165 24 mins 1367107033 1367107233 Processing file 1/1
/ligo/gitcommon/noise_recorder/data/darm_noise/202305021656/darm_noise_srcl_-165_src1_p_-6_50_6_50_Hz_gps_start_1367107033.hdf5
 

/ligo/gitcommon/noise_recorder/data/darm_noise/202305021656/pcaly_srcl_-165_src1_p_-6_50_6_50_Hz_gps_start_1367107233.hdf5

 

Stitched TF file saved at
/ligo/gitcommon/noise_recorder/data/darm_noise/202305021656/
/ligo/gitcommon/noise_recorder/figures/darm_noise/202305021656/
0 11 mins 1367112023 1367112223 /ligo/gitcommon/noise_recorder/data/darm_noise/202305021820/darm_noise_srcl_0_src1_p_-6_50_6_50_Hz_gps_start_1367112023.hdf5
 
/ligo/gitcommon/noise_recorder/data/darm_noise/202305021823/pcaly_srcl_0_src1_p_-6_50_6_50_Hz_gps_start_1367112223.hdf5 /ligo/gitcommon/noise_recorder/data/darm_noise/202305021820/ /ligo/gitcommon/noise_recorder/figures/darm_noise/202305021820/
+100 28 1367112998 1367113217 /ligo/gitcommon/noise_recorder/data/darm_noise/202305021836/darm_noise_srcl_+100_src1_p_-6_50_6_50_Hz_gps_start_1367112998.hdf5 /ligo/gitcommon/noise_recorder/data/darm_noise/202305021839/pcaly_srcl_+100_src1_p_-6_50_6_50_Hz_gps_start_1367113217.hdf5 /ligo/gitcommon/noise_recorder/data/darm_noise/202305021836/ /ligo/gitcommon/noise_recorder/figures/darm_noise/202305021836/
0 56 1367114970 1367115221 Data file saved at
/ligo/gitcommon/noise_recorder/data/darm_noise/202305021909/darm_noise_srcl_0_src1_1hr_in_p_-6_50_6_50_Hz_gps_start_1367114970.hdf5
/ligo/gitcommon/noise_recorder/data/darm_noise/202305021913/pcaly_srcl_0_src1_1hr_in_p_-6_50_6_50_Hz_gps_start_1367115221.hdf5 /ligo/gitcommon/noise_recorder/data/darm_noise/202305021909 /ligo/gitcommon/noise_recorder/figures/darm_noise/202305021909
-180 1.5hrs 1367116767 1367116962 /ligo/gitcommon/noise_recorder/data/darm_noise/202305021939/darm_noise_srcl_-180_src1_1-5hr_in_p_-6_50_6_50_Hz_gps_start_1367116767.hdf5 /ligo/gitcommon/noise_recorder/data/darm_noise/202305021942/pcaly_srcl_-180_src1_1-5hr_in_p_-6_50_6_50_Hz_gps_start_1367116962.hdf5 /ligo/gitcommon/noise_recorder/data/darm_noise/202305021939 /ligo/gitcommon/noise_recorder/figures/darm_noise/202305021939
-200 1hr 50 mins 1367117947 1367118143 /ligo/gitcommon/noise_recorder/data/darm_noise/202305021958/darm_noise_srcl_-200_src1_1hr48_in_p_-6_50_6_50_Hz_gps_start_1367117947.hdf5 /ligo/gitcommon/noise_recorder/data/darm_noise/202305022002/pcaly_srcl_-200_src1_1hr48_in_p_-6_50_6_50_Hz_gps_start_1367118143.hdf5 /ligo/gitcommon/noise_recorder/data/darm_noise/202305021958 /ligo/gitcommon/noise_recorder/figures/darm_noise/202305021958
-220 2 hrs 16 mins into lock 1367119477 1367119682 /ligo/gitcommon/noise_recorder/data/darm_noise/202305022024/darm_noise_srcl_-220_src1_2hr14_in_p_-6_50_6_50_Hz_gps_start_1367119477.hdf5 /ligo/gitcommon/noise_recorder/data/darm_noise/202305022027/pcaly_srcl_-220_src1_2hr14_in_p_-6_50_6_50_Hz_gps_start_1367119682.hdf5 /ligo/gitcommon/noise_recorder/data/darm_noise/202305022024/ /ligo/gitcommon/noise_recorder/figures/darm_noise/202305022024
-240 2 hrs 42 mins into lock 1367121055 1367121265 /ligo/gitcommon/noise_recorder/data/darm_noise/202305022050/darm_noise_srcl_-240_src1_2hr40_in_p_-6_50_6_50_Hz_gps_start_1367121055.hdf5 Data file saved at
/ligo/gitcommon/noise_recorder/data/darm_noise/202305022054/pcaly_srcl_-240_src1_2hr40_in_p_-6_50_6_50_Hz_gps_start_1367121265.hdf5
/ligo/gitcommon/noise_recorder/data/darm_noise/202305022050/ /ligo/gitcommon/noise_recorder/figures/darm_noise/202305022050
-165 3 hrs 3 mins into lock 1367122300 1367122491 /ligo/gitcommon/noise_recorder/data/darm_noise/202305022111/darm_noise_srcl_-165_src1_3hr3_in_p_-6_50_6_50_Hz_gps_start_1367122300.hdf5 /ligo/gitcommon/noise_recorder/data/darm_noise/202305022114/pcaly_srcl_-165_src1_3hr3_in_p_-6_50_6_50_Hz_gps_start_1367122491.hdf5 /ligo/gitcommon/noise_recorder/data/darm_noise/202305022111 /ligo/gitcommon/noise_recorder/figures/darm_noise/

Posting this now to show measurements taken. Will comment tomorrow with all graphs on one plot.

Attached to the report are the compiled plots from both measurements, which are in the data folders listed in the table.

Non-image files attached to this report
Comments related to this report
elenna.capote@LIGO.ORG - 17:00, Wednesday 03 May 2023 (69302)

Based on this test, and more measurements of the sensing function today, we have determined that -200 is a better SRCL offset. We don't want to increase much beyond this, to leave enough ADC range on LSC POP 45. I have changed the SRCL offset in the guardian (lownoise length control).