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Entry  Tue Jun 25 11:54:47 2019, Kruthi, Update, Cameras, GigE MC2_GigE.pdfCameras_final_setup.JPG
    Reply  Wed Jun 26 19:12:00 2019, Kruthi, Update, Cameras, GigE MC2_GigE_image.pdf
       Reply  Wed Jun 26 20:45:03 2019, gautam, Update, Cameras, Field of view options 
       Reply  Wed Jul 3 23:53:38 2019, Milind, Update, Cameras, data for nns 
Message ID: 14723     Entry time: Wed Jul 3 23:53:38 2019     In reply to: 14702
Author: Milind 
Type: Update 
Category: Cameras 
Subject: data for nns 

Tried collecting data today. Was unable to keep the camera_server code running for any length of time as it threw segfaults. Will take a shot again tomorrow.


The GigE is focused now (judged by eye) and I have closed the lid. I'm attaching a picture of the MC2 beam spot, captured using GigE at an exposure time of 400µs.

What was the solution to resolving the flaky video streaming during the alignment process????

-> I think, the issue was with either the poor wireless network conection or the GigE-PoE ethernet cable.


Turns out, focusing the GigE is actually a bit tricky. With pylon, everytime I change the exposure or the focus, I'm running into the error I had mentioned earlier in one of my elogs; so I tried using the python scripts to interact with the GigE. But whenever I try to change the focal plane distance by rotating the lens coupler, the ethernet cable connection becomes loose and the camera server needs to be relaunched every now and then. Also, everytime we want to change the distance between the lenses, the telescope needs to be dismantled and refocused again. I'll try to come up with a better telescope design for this.

Yesterday, I had focused the GigE using a low exposure time and small aperture of iris, to make sure that we are actually seeing a sharp image of the beam spot. I'm attaching a picture of the beam spot I had clicked while focusing it, unfortunately, I forgot to take a picture after I had focused it completely. I'm also attaching a picture of the final setup for future reference. 

Yesterday night, Rana asked me to lock the MC2. I figured that the PSL shutter was closed; I just opened it and was able to see the beam spot on the analog camera screen.

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