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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: 2537     Entry time: Fri Feb 14 16:46:47 2020     In reply to: 2520     Reply to this: 2541
Author: Ian MacMillan 
Type: Notes 
Category: FSS 
Subject: FSS Plant Model v2 

The PCB came in and I have assembled it. The preliminary look at the transfer function on the AG4395A shows that there is a problem. The function is very noisy and the signal is very low. I will go through and verify all the solder points are fully connected and generally debug the circuit. A quick measurement of the transfer function on the SR785 of the low frequency (10Hz-100kHz) showed good results earlier so I fear something has come loose. Note the low-fq measurement was not recorded properly. so I have no graph for it. 

I think this is a small fix that needs to be made. 

The graphs below show the EOM and PZT path TF measurements on the AG4395A. They make it clear that something is not connected. This is just a progress report.

Attachment 1: TFAG4395A_14-02-2020_155048.pdf  39 kB  | Hide | Hide all
TFAG4395A_14-02-2020_155048.pdf
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TFAG4395A_14-02-2020_165608.pdf
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