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ID Date Author Type Category Subject Text   17656   Sat Jun 24 21:31:02 2023 Mayank Update Electronics Transfer function of the new coil driver board I  measured the transfer function of the new coil driver board. This was done to estimate the correct Sim-Dewhithinng and      17676   Mon Jul 10 17:12:02 2023 Mayank Update Electronics ETMX Coil Driver Mode I modified the Binary Input DB9 connector. The coil drivers are now operating with the Run/Acq LED off. As per 17656      3126   Mon Jun 28 11:27:08 2010 Megan Update Electronics Marconi Phase Noise Using the three Marconis in 40m at 11.1 MHz, the Three Cornered Hat technique was used to find the individual noise of each      3240   Fri Jul 16 20:25:52 2010 Megan Update PSL Reference Cavity Insulation Rana and I 1) took the temperature sensors off the reference cavity;      3260   Wed Jul 21 15:43:38 2010 Megan Summary PSL Copper Layer Thickness on the Reference Cavity Using the equation for thermal resistance Rthermal = L/(k*A) where k is the thermal conductivity      3159   Tue Jul 6 17:05:30 2010 Megan and Joe Update Computers c1iovme reboot We rebooted c1iovme because the lines stopped responding to inputs on C1:I00-MC_DRUM1. This fixed the problem.      6341   Wed Feb 29 17:32:11 2012 Mike Update Computers PyNDS and a Plot                                6479   Tue Apr 3 12:42:19 2012 Mike J. Update Computers Hysteresis Model Here's my first hysteresis model in Simulink. It's based on the equation y=Amplitude*sin(frequency*t+phase)+(hysteresis/frequency2) as a solution to y''+frequency2*y+hysteresis=0.      6485   Wed Apr 4 21:43:16 2012 Mike J. Update Computers Better Hysteresis Model A better hysteresis model based on the simple harmonic oscillator equation. Useless variables have been removed and output can      6487   Thu Apr 5 01:07:08 2012 Mike J. Update Computers Hysteresis Plots Here are the hysteresis plots from the most recent model, which uses a modified harmonic      6500   Fri Apr 6 19:40:57 2012 Mike J. Summary General Laser Emergency Shutoff I accidently shut off the laser at 19:34 with the emergency shutoff button while trying to tap into a video line for the Sensoray      6502   Fri Apr 6 20:24:31 2012 Mike J. Update Computers Sensoray The Sensoray device is currently viewing Monitor 4 and plugged into Pianosa.  The user interface is run at /home/controls/Downloads/sdk_2253_1.2.2_linux/python      6503   Fri Apr 6 20:38:41 2012 Mike J. Update Computers Sensoray  Turns out that the "MPEG-4 VES" video format is just bad for captured video.  Everything except "MP4" and "MPEG-TS"      6505   Sat Apr 7 01:45:02 2012 Mike J. Update Computers Even Better Hysteresis Model and Plots  The new hysteresis model is slightly based on the SHO equation, but with the force being out of phase with the position by an      6507   Sat Apr 7 02:01:29 2012 Mike J. Update Computers Projector Cable Management I replaced the projector video and power cables with longer ones, and zip-tied them to the ceiling and wall so they don't block      6513   Mon Apr 9 20:02:19 2012 Mike J. Update Computers Sensoray The highest resolution available is 720x480 pixels. Bit depth of captured images and video is most likely 16 bits per pixel. Video      6530   Thu Apr 12 22:04:17 2012 Mike J. Update Computers New Hysteresis Model & Plots The new hysteresis model uses a triangle wave with offset zero points as the position function and a sinusoidal force function,      6592   Tue May 1 17:42:15 2012 Mike J. Update Computers Sensoray I've upgraded the Sensoray GUI so it can now switch the video channel it receives, thanks to the videoswitch script.      6645   Tue May 15 23:40:46 2012 Mike J. Update Computers Image Subtraction I acquired 2 raw frames of MC2 using "/users/mjenson/sensoray/sdk_2253_1.2.2_linux/capture -n -s 720x480 -f 1", one while the laser was off the mode cleaner and another      7362   Fri Sep 7 15:31:52 2012 Mike J. Update Computers Sensoray back up Video Capture with the Sensoray works again. Pianosa just needed mplayer installed for it to play properly.      7364   Fri Sep 7 17:24:16 2012 Mike J. Update Computers Sensoray Video Capture To capture video with the Sensoray, open the GUI (python ./demo.py), simply press "Save," enter a filename, and hit      7380   Thu Sep 13 19:59:43 2012 Mike J. Update Electronics AS beam scan **EDIT:** Mixed up X and Y. Beam is 3.5844      7386   Fri Sep 14 01:35:55 2012 Mike J. Update Electronics AS beam scan PLOTS        7404   Tue Sep 18 22:06:21 2012 Mike J. Update Electronics AS beam scan plots and chi-squared Results of the Razor Blade Beam Scan The horizontal blade test measured the beam intensity as a razor blade passed      7427   Fri Sep 21 22:25:44 2012 Mike J. Update General POX, POY, PR2 pics Unaltered PR2 images, with IR card, without card, and steering mirror:  10x    14626   Mon May 20 21:45:20 2019 Milind Update   Traditional cv for beam spot motion Went through all of Pooja's elog posts, her report and am currently cleaning up her code and working on setting up the simulations      14632   Thu May 23 08:51:30 2019 Milind Update Cameras Setting up beam spot simulation I have done the following thus far since elog #14626: Simulation:      14635   Thu May 23 15:37:30 2019 Milind Update Cameras Simulation enhancements and performance of contour detection Implemented image level noise for simulation. Added only uniform random noise. Implemented addition of uniform random noise to any sinusoidal  6x    14638   Sat May 25 20:29:08 2019 Milind Update Cameras Simulation enhancements and performance of contour detection I used the same motion as defined in the previous elog. I gradually added noise to the images. Noise added was uniform random      14649   Mon Jun 3 21:03:54 2019 Milind Update Cameras Steps to interact with GigE The following steps summarize the steps to setting up and interacting with a GigE camera.      14650   Mon Jun 3 23:18:59 2019 Milind Update Computer Scripts / Programs updating bashrc I was working with the git repo in the SnapPy_pypylon folder (/cvs/cds/rtcds/caltech/c1/scripts/GigE/SnapPy_pypylon) and needed to create a branch. To avoid any      14654   Tue Jun 4 22:24:45 2019 Milind Update Cameras Steps to interact with GigE Figured out how to get/grab frames by looking at the pypylon documenation as that turned out to be      14656   Wed Jun 5 22:30:13 2019 Milind Update Cameras Steps to interact with GigE Thanks! It does indeed do the trick! With that I was able to Obtain current exposure      14657   Thu Jun 6 16:01:52 2019 Milind Update Cameras Steps to interact with GigE [Koji, Milind]   Today I ran into the following      14661   Mon Jun 10 22:22:19 2019 Milind Update Cameras Steps to interact with GigE Steps to take snapshots using GigE at different exposures [Instructions for Kruthi]: Setup C1-CAM-ETMX.ini (/opt/rtcds/caltech/c1/scripts/GigE/SnapPy_pypylon/C1-CAM-ETMX.ini)      14662   Tue Jun 11 00:00:15 2019 Milind HowTo PSL Steps to lock the PMC Today, Rana had me key the PSL crate. Locating the rack: the crate is 1X1. This      14667   Wed Jun 12 22:02:04 2019 Milind Update Cameras Simulation enhancements Today, Rana asked me to work on improving simulations based on the ideas we discussed last week. As of the previous elog the simulation      14669   Thu Jun 13 15:08:31 2019 Milind Update Electronics VCO pickup by Rich Rich dropped by at around 3:00 PM today and picked up the VCO in Attachment #1 and left the note in Attachment #2 on Gautam's      14671   Thu Jun 13 21:29:52 2019 Milind Update Cameras Steps to interact with GigE As directed by Gautam, I have set up one script- interact.py (at /opt/rtcds/caltech/c1/scripts/GigE/SnapPy_pypylon/interact.py) to perform the following two tasks:      14678   Mon Jun 17 14:36:13 2019 Milind Update Cameras Convolutional neural networks for beam tracking Begun setting up an environment (as mentioned before, on my local machine) and scripts to run experiments with Convolutional      14680   Mon Jun 17 22:19:04 2019 Milind Update Computer Scripts / Programs PMC autolocker As Rana asked me to in the last meeting, I dug through the elogs to determine what had become of the previous autolockers. I      14682   Tue Jun 18 22:54:59 2019 Milind Update Cameras Convolutional neural networks for beam tracking Worked further on this. I skimmed through a few resources to look for details of what pre-processing can be done. Here      14694   Tue Jun 25 00:25:47 2019 Milind Update Cameras Convolutional neural networks for beam tracking In the previous meeting, Koji pointed out (once again) that I should determine if the displacement values and frames are synchronized  8x    14697   Tue Jun 25 22:14:10 2019 Milind Update Cameras Convolutional neural networks for beam tracking I discussed this with Gautam and he asked me to come up with a list of signals that I would need for my use and then design the      14698   Tue Jun 25 23:52:37 2019 Milind Update Cameras Simulation enhancements Yesterday, Rana asked me to look at Hiro Yamamoto's      14700   Wed Jun 26 11:11:40 2019 Milind Update IOO PMC and IMC locked again, some MEDM maintenance After helping Aaron key the crate and do a burt restore, I realized that it would probably be best to record the steps that      14706   Thu Jun 27 20:48:22 2019 Milind Update Cameras Convolutional neural networks for beam tracking And finally, a network is trained! Result summary (TLDR :-P)      14710   Sun Jun 30 22:02:26 2019 Milind Update Cameras Keyed c1aux crate I wanted to try out the unstick.py script on c1aux but kept running into timeout errors. I was also confronted by a blank GigE screen.      14711   Sun Jun 30 22:21:07 2019 Milind Update IOO PMC and IMC locked again, some MEDM maintenance Wrote the script. It currently lives at /users/milind/NonlinearControl/milind/unstick/unstick.py. Also pushed it to the repo here.      14713   Mon Jul 1 11:02:05 2019 Milind Update IOO PMC and IMC locked again, some MEDM maintenance Made changes as discussed in this issue. Further, I need to add signal handling capabilities to the code. I belive Jon has

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