40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  PSL  Not logged in ELOG logo
Entry  Fri Oct 4 13:41:44 2019, anchal, Notes, FSS, FSS Plant Model FSS_Plant_Zero_Sim.pdfPlantModel.pdfPlantModel.zip
    Reply  Fri Oct 4 14:56:42 2019, Ian MacMillan, Notes, FSS, FSS Plant Model PlantModelCircuit.pdf
       Reply  Tue Oct 8 10:41:43 2019, anchal, Notes, FSS, FSS Plant Model 
          Reply  Mon Oct 14 12:54:41 2019, anchal, Notes, FSS, FSS Plant Model v2 FSS_Plant_Zero_Sim.pdfPlantModelv2.pdfPlantModelv2.zip
             Reply  Tue Oct 22 13:07:45 2019, Ian MacMillan, Notes, FSS, FSS Plant Model v2 PlantDig.pdfEOM_Transfer_Function.pdfPZT_Transfer_Function.pdf
                Reply  Thu Oct 24 11:42:06 2019, Ian MacMillan, Notes, FSS, FSS Plant Model v2 
                   Reply  Tue Dec 3 17:27:54 2019, Ian MacMillan, Notes, FSS, FSS Plant Model v2 IMG_8065.jpegIMG_8069.jpeg
                      Reply  Mon Dec 9 18:08:13 2019, Ian MacMillan, Notes, FSS, FSS Plant Model v2 OutputGraphsTransferFunction.pdf_Circuit_Design_V1.zip
                         Reply  Tue Dec 10 11:57:58 2019, Ian MacMillan, Notes, FSS, FSS Plant Model v2 IMG_8124.jpeg
                            Reply  Thu Dec 12 11:54:11 2019, Ian MacMillan, Notes, FSS, FSS Plant Model v2 PZT_LowFq_V1.pdfPZT_HighFq_V1.pdfEOM_LowFq_V1.pdfEOM_HighFq_V1.pdf
                               Reply  Thu Dec 12 19:05:33 2019, rana, Notes, FSS, FSS Plant Model v2 
                                  Reply  Mon Dec 16 09:43:56 2019, Ian MacMillan, Notes, FSS, FSS Plant Model v2 PZT_TF.pdfEOM_TF.pdfNon-Moku_Data_PlantCir_V1.zip
                                     Reply  Tue Jan 14 13:30:39 2020, Ian MacMillan, Notes, FSS, FSS Plant Model v2 EOM_TF_V1.pdfPZT_TF_V1.pdfPlant_CIR_TF.zip
                                        Reply  Tue Jan 14 13:32:16 2020, Ian MacMillan, Notes, FSS, FSS Plant Model v2 FSSPlantModelV2SCH.pdfFSSPlantModelV2.pdfPlant_Circuit_Board_Eagle.zip
                                           Reply  Tue Jan 28 13:27:25 2020, Ian MacMillan, Notes, FSS, FSS Plant Model v2 LIGO-D2000020-v1.pdfBOARD_LIGO-D2000020-v1.pdfEagle_LIGO-D2000020-v1.zip
                                              Reply  Mon Feb 10 12:46:17 2020, Ian MacMillan, Notes, FSS, FSS Plant Model v2 
                                              Reply  Fri Feb 14 16:46:47 2020, Ian MacMillan, Notes, FSS, FSS Plant Model v2 TFAG4395A_14-02-2020_155048.pdfTFAG4395A_14-02-2020_165608.pdf
                                                 Reply  Tue Feb 18 15:42:46 2020, Ian MacMillan, Notes, FSS, FSS Plant Model v2 PZT_TF_V1.pdfEOM_TF_V1.pdfTransfer_Functions_FSS.zip
                                                    Reply  Tue Mar 3 17:13:04 2020, Ian MacMillan, Notes, FSS, FSS Plant Model v2 image.pngPLT_Spectrum.pdf20200303_IanSimPlant.zipPLT_Spectrum.pdfPLT_TF.pdf
                                                       Reply  Wed Mar 11 15:40:50 2020, Ian MacMillan, Notes, FSS, FSS Plant Model v2 TFSR785_06-03-2020_135844_PZT.pdfTF_V1.zip
                                                          Reply  Thu Mar 12 16:21:49 2020, Ian MacMillan, Notes, FSS, FSS Plant Model v2 TFSR785_10-03-2020_175129.pdfTFSR785_10-03-2020_175129.txt
                                                          Reply  Thu Mar 12 17:18:51 2020, rana, Notes, FSS, FSS Plant Model v2 
Message ID: 2498     Entry time: Mon Dec 16 09:43:56 2019     In reply to: 2494     Reply to this: 2510
Author: Ian MacMillan 
Type: Notes 
Category: FSS 
Subject: FSS Plant Model v2 

In talks with Anchal, we have adapted our model and the transfer function fits rather well. These measurements were taken with the AGmeasure and SRmeasure script on the larger instruments in the CTN lab (I can't remember the exact make of them). Two were used for different frequency bands: one up to 100 kHz and the other one above. In order to have continuous measurements, the high-frequency measurement was shifted to be continuous with the lower frequency measurement. This was not a significant shift and does not impact the overall interpretation. It is merely a correction for different calibrations in the Instruments used to measure the transfer functions.

The Magnitude of the transfer functions matches well and Anchal agrees that they also look good. So the circuit can be used in its current form. It isn't currently in a box but that is an easy fix. I am still making full documentation on it and that should be done over break. I am also looking to make it as a single PCB to eliminate any points of failure that come from attaching multiple PCBs together. It is not entirely necessary because as is seen in the graphs, the circuit works well but designing a PCB is a good task for over break because it does not really require any in lab work and will be highly beneficial down the road. I am still talking to Anchal about the circuit and its implementation.

Attachment 1: PZT_TF.pdf  81 kB  | Hide | Hide all
PZT_TF.pdf
Attachment 2: EOM_TF.pdf  83 kB  | Hide | Hide all
EOM_TF.pdf
Attachment 3: Non-Moku_Data_PlantCir_V1.zip  175 kB
ELOG V3.1.3-