 Mon Jul 17 11:46:24 2023, Pamella, Update, FLIR, Thermocouple plot. 
|
[Pamella]
I collected data to plot a calibration with the heater. I took measurements with current and temperature (the thermocouple - thermometer)
to compare with the FLIR measurements.
I made a plot with this data and we can see how temperature vs current behaves.
Note: This data
I measured manually.
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 Tue Jul 18 16:12:27 2023, Pamella, Update, FLIR, Thermocouple plot.
|
I noticed that these measurements have some issues with the weather on different days. We can see in the photo attached below how different the
temperatures are on different days, I took the data with the same procedure every day, but we can see the differences between them.
To Do: I
will do a new data collection using FLIR and thermocouple at the same time to plot comparison between both.
|
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Tue Jul 18 16:04:26 2023, Pamella, Update, FLIR, Setup FLIR with black wall (black body)
|
[Pamella]
Today I tried get data the heater with the black screen but doesn't looks possible have just one "energy" point straight to FLIR camera.
Tyler and I tried different current and temperatures but keep very bad data. I attached a snap below.
I attached a photo about the new setup
below. The FLIR is in the most close point possible/safety with the heater. The heater is very close to the black wall but is not touch the screen so is |
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Tue Jul 18 14:13:46 2023, Sophia , Update, Scripts/Programs, Update on Laser Noise Data Collection and Analysis 6x
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We [Sophia and Tyler] have found a code which will partition our data and generate PSD's and CSD's automatically. We are now in the stage of writing this
into a dynamic code, which so far has been fast-paced because of the framework we have built for it over the past few weeks.
Something to note is that
we have found, especially over long periods of time, the laser goes through periods of extreme noise and the signals often cross from where we set them |
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Mon Jul 17 14:01:41 2023, Aiden, Update, VAC, VAC System Heating Update
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The insulation on the lid of the vacuum chamber has some discoloration and it may be wise to place a sensor closer to this spot in future bakes.
|
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Mon Jul 17 13:50:41 2023, Aiden, Update, VAC, VAC System Heating Update
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Started to cool down the chamber today. Final temperature readings of the chamber were 146C and 91C for the body and cross respectively.
|
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Sun Jul 16 15:21:56 2023, Pamella, Update, General, General update about some problems in the lab.
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[Pamella]
General information about the lab facility.
Changed sticky floor mats, because close to entrance the cleanroom,
both sticky floor had a many died ants on top.
The light on top of the internet cable bridge is burned out.. I just saw this today but I am
not sure if was like this before.
The ant bait traps seem very efficient and right now only a few ants are running around in the lab, most are |
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Fri Jul 14 16:49:42 2023, Pamella, Update, FLIR, New bridge and calibration data
|
[Pamella]
Aiden 3D printed a new bridge for the heater and I installed the new bridge yesterday.
I started collecting data to plot
a calibration with the heater. I'm doing measurements with current and the thermocouple (thermometer) to compare with FLIR measurements and have a good
calibration. |
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Fri Jul 14 14:37:25 2023, Aiden, Update, VAC, VAC System Heating Update
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Checked on the vacuum system and it looks like it will either need to be increased in temperature or baked for a longer time. The main body is at 146C
while the cross is at 91C.
|
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Thu Jul 13 15:31:21 2023, Jon, Update, General, Ant traps placed around lab
|
In response to reports that ants have been observed in the lab, I placed five ant bait traps around the room today. Each is sitting on the floor on top
of a piece of aluminum foil, in areas unlikely to be inadvertently stepped on. They contain liquid which will spill
out if picked up, so please take care not to disturb them. |
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Thu Jul 13 16:59:03 2023, Jon, Update, General, Ant traps placed around lab
|
Update: After seeing the strong response to the first set, I redistributed them to the hottest spots and added one more trap.
Quote:
In response to reports that ants have been observed in the lab, |
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Thu Jul 13 14:56:43 2023, Aiden, Update, VAC, VAC System Heating Update
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Checked on the vacuum system today to change the PID controls back to their default values in order to try and get the temperature of the cross in
front of the turbo pump higher. Currently it is sitting at 90 degC before changing the controls. While the main body is at 146 degC.
Will update
again tomorrow on new equilibrium with the default PID settings.
|
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Mon Jul 10 13:23:23 2023, Aiden, Update, VAC, VAC System Heating Update
|
Checked on the system today.
The flange on the turbo pump has reached an equilibrium temperature of 87 degC when set at 150 degC. While
the main body of the chamber has reached an equilibrium temperature of 142 degC.
|
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Fri Jul 7 15:11:39 2023, Aiden, Update, VAC, VAC System Heating Update
|
The temperature of the flange connecting to the turbo pump after reaching equilibrium is 74 degC. This means that it is safe to proceed with raising
the temperature from 120 degC to 150 degC.
Raised the set temperature of the chamber from 120 degC to 150 degC in 15 deg steps.
|
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Thu Jul 6 18:03:19 2023, Pamella, Update, FLIR, FLIR project - New configuration
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[Pamella]
Cao suggested using the project without the reflector and mask because in this case we probably got good images around the screen. So I started
this yesterday and today I started to get some data to see the stabilization position and check how the parameters fluctuated. I was looking and taking
snaps for an hour and a half. I'll repeat this one more time to make sure we have enough data to do analysis.
To do: The next step is to start |
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Thu Jul 6 16:16:03 2023, Aiden, Summary, VAC, Vacuum Chamber Baking Update
|
Pressure Measured Before Removing Gauge 2.31 E-7 Torr.
Went in and turned on the heating tape in increments of 30 degC until 120 degC was
reached. I will let it equilibrate over night and then asses whether or not the chamber can be raised to 150 degC without having the flange to the turbo
pump reach over 120 degC as it is not recommended for that flange to be any hotter.
If it can safely be raised to 150 degC, then only 2 days |
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Thu Jul 6 13:34:48 2023, Pamella, Shane, Julian, Aiden, Update, Cleanroom, cleaning and particle count
|
[Pamella, Julian, Aiden, and Shane]
cleaning cleanroom and particle count
12:00 pm: started particle count
Zone 3: 0.3 u: 28260.5 u: 4571.0 u: 166
Zone 4: 0.3
u: 4570.5 u: 831.0 u: 41
12:17 pm: began surface check and wipedown. NOTE: found |
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Wed Jul 5 16:02:12 2023, Aiden, Update, Clean & Bake, Clean and Bake batch 14 Bagging
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| Bagged and Tagged the 2.75" copper gaskets from Batch 14 and placed them into the clean room on the work bench. |
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Wed Jul 5 15:46:47 2023, Aiden, Cao, Infrastructure, VAC, Vacuum Chamber Baking Update
|
Cao and Aiden put the RGA back on to the chamber and measured the outgassing rate after the chamber has cooled down from its first bake. The figure
attached shows the RGA measurements with the Argon leak open.
Also put the Full Range Gauge #2 [RGA line] back onto the system to measure the pressure and got a reading of 2.78 E-7 Torr. We believe it |
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Tue Jul 4 15:35:38 2023, Pamella, Update, FLIR, FLIR - reflexion problem
|
[Pamella]
I was testing all the positions we need to cover when moving the FLIR camera or the reflector. I tried to find out more about the problem so
I tested the position without the mask, just with the old bridge and I got the same problems, in the middle of the screen we have a very good image but
if we move we have the visualization problem and we don't see the reflection very well (intensity, emissivity) in FLIR.
For this test I used very low |
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Mon Jul 3 18:38:13 2023, Pamella, Update, FLIR, FLIR project
|
[Pamella]
I was able to work on the python code to do analysis on the FLIR-Reflector data.
I could plot images of total area (Tyler
help me on that) with csv file and also could have isolation area for triangles. I have attached examples below. Just for now the images are of different
data, so there are some differences in the shapes.
I'm working on getting a complete analysis code to work with the different positions of the |
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Mon Jul 3 16:26:21 2023, Cao, Infrastructure, DAQ, Access and control Red Pitaya remotely and run it on local machine
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[Cao]
To access and control the Red Pitaya using Python locally on a machine within the local network, one should follow these steps:
Start the SCPI server. This is achieved by first log onto the Red Piatay page
rp-xxxxxx.local/
Go to Development >> SCPI server and turn the server on. (Note : The server is currently running)
|
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Mon Jul 3 14:32:24 2023, Cao, Infrastructure, VAC, Cooling down vacuum chamber
|
[Cao]
After leaving the the chamber to bake at 120 deg C from Thursday 3:41 pm. Today I started to cool the chamber down to room temperature at
11:30 am (total bake duration: 91 hours 49 minutes). Ideally, this process should be ramped down slowly, approx. 6 degree per hour. However we had no ramping
function with out controller. The only method to tune this cool/ heat rate is to tune the PID parameters, which are:
Pb : Proportional |
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Fri Jun 30 16:43:14 2023, Pamella, Update, FLIR, Updates: Small moving the FLIR camera
|
[Pamella]
Today, I was able to make some adjustments to the FLIR camera angle, suggested by Dr. Richardson, and we got small possible movements
keeping the same pattern in the shapes of the triangles. I have attached photos below. I was able to move left and right as well as up and down and it
worked in four points that I marked on the table.
The only problem is that it only worked on a part of the screen, if I try to place it farther |
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Fri Jun 30 15:57:28 2023, Pamella, Update, FLIR, Data and python code update
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[Pamella]
Updates: Problems with the emission intensity and python code.
Yesterday I was working on get data from FLIR
reflector but unfortunately we got some problems:
I realized than if I move the reflector a to left or right the screen
doesn't get data very well(I attached a photo below). This is a problem because our idea is have the same type of emission every part on screen. Tyler |
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Thu Jun 29 18:27:26 2023, Jon, Cao, Infrastructure, VAC, Vacuum bake attempt 3: success!
|
[Jon, Cao]
Summary : We resolved problems with heaters tripping power and were able to proceed with chamber baking
1. Circuit connection adjustment
After yesterday elog 137, today we resolved
most of these issues. After Jon contacted Facilities, the LP3B 6 circuit was reset and the cleanroom filter & light panels resumed to work as normal.
|
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Wed Jun 28 15:58:56 2023, Shane, Cao, Infrastructure, VAC, Power trip problem remains, source of smoke is insulation
|
[Shane, Cao]
With the new change in wiring configuration described in elog 136, we tried
to power up the heaters for baking the vacuum chamber again.
Given that we were worried about the turbo pump overheats, we set the setpoints of of bother high temperature controller and PID controller to |
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Wed Jun 21 20:25:05 2023, Cao, Infrastructure, VAC, Vacuum chamber bake attempt 1 6x
|
TL;DR:
We are not yet able to bake the chamber at 150 deg C due to some current limit, most likely caused power supply switching off. Also,
smoke was observed at some insulation points, mainly in the small arm sections, This is likely because the insulation does not fit well and the velcro
came into direct contact with heat tape. Some Velcro (made from Nylon/ Polyester) has lower melting temperature point (in 90-120 deg C range)
Full |
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Tue Jun 27 21:47:56 2023, Jon, Infrastructure, VAC, Vacuum chamber bake attempt 1
|
The electrical overload problem encountered in ELOG 130 has been resolved. The two heater controllers,
which draw up to 14.1 A each, overloaded the UPS and tripped one of its circuit breakers, shutting off power to both power strips mounted above the optical
table. |
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Tue Jun 27 15:18:26 2023, Pamella, Update, FLIR, New data collection
|
[Pamella]
Yesterday, I did a new data collection. I could get a better data in this time and I realized than I need use some
angle on the reflector for got a better shot. I need do that because the FLIR camera just is able to get the triangle shape for complete if I keep exactly
in same line for center point on the camera but for the data now I need move the refletor to go up and go down. So wasn't working very well if I keep the |
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Tue Jun 27 14:04:42 2023, Sophia A. , Update, Measuring Noise in Interferometer, Interferometer set up and connection to red pitaya
|
Today we (Sophia and Tyler) constructed the set-up for the electrical noise calculation that I will be conducting this summer. I have included images of
the setup below. Our system is effectively a green laser, that feeds into a type of polarizer, then into a beam splitter which sends the laser light down
two arms into detectors. We started by connecting the detectors to an oscilloscope to determine whether the signal will exceed 1V, as the red pitaya (our |
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Tue Jun 27 12:09:37 2023, Shane, Update, Cleanroom, cleanroom 5 zone particle count measurement
|
Attached is 5 zone measurement for cleanroom particulate count. Zone 3 (in front of vacuum chamber) higher than usual, likely due to recent vac work. Slightly
above ISO class 5 standard in 1.0 micron range, measuring 997 particles/cubic meter while ISO standard is 832 particles/cubic meter in this range.
Zero
count test on particle counter performed prior to today's measurement. |
|
Fri Jun 23 15:47:06 2023, Pamella, Update, FLIR, Collecting data - Moving horizontal and vertical on screen. 6x
|
[Pamella]
02:09 pm: Turned on the device (current on)
02:42 pm: Started taking snap on position one (Reference point: 0,-0.062).
Parameters:0.10A,1.5V,41.5C
I took multiplier snap on the same position for compare after on data analyzes. I just wanted one/two minute
break between the snaps. I did that same for every position.
02:55 pm: Started taking snap on position two (Reference point:-0.10,-0.062 |
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Thu Jun 22 13:58:00 2023, Pamella, Julian and Shane, Update, Cleanroom, Cleaning and Particle Count
|
[Pamella, Shane, and Julian]
cleaning cleanroom and particle count
12:00 pm: started particle
count
Zone 3
0.3u: 3533
0.5u: 540
1.0u: 166
Zone 4
0.3u: 290
0.5u:
124
1.0u: 41
12:31 pm: Started checking the surface inside the cleanroom and began surface wipedown
12:50 |
|
Tue Jun 20 22:14:24 2023, Pamella, Cao, Infrastructure, VAC, Short term testing of vacuum heater controller units
|
[Pamella, Cao]
Fuse replacement
Replace blown 10A fuse in ucontroller outside cleanroom
Replace 10 A fuse in
main power connection slot of the controller unit inside cleanroom
Pamella wiped down unit outside cleanroom.
Controller units
turned on and temperature setpoint set to be 80 deg C
Temperature settle in approx. 15 minutes(as recorded by the RTD). No problems with |
|
Tue Jun 20 17:28:23 2023, Pamella, Update, Electronics, Heater system parts - Wiped
|
[Pamella]
Heating system
Wiping the heater system parts.
04:37 pm: Started wiping the electronic device
part for the heater system (HL101 Series Digital Benchtop temperature limit control).
05:19 pm: Finished wiping the parts to the heater
system (HL101 Series Digital Benchtop temperature limit control). I wiped the HL101 Series Digital Benchtop temperature limit control and I didn't bagged |
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Mon Jun 19 11:20:57 2023, Pamella, Update, FLIR, FLIR - Fixed some problems
|
[Pamella]
08:59 am: Turned on the electronic device (current on) for started taking data.
09:37 am: Tried understanding the
error in the focal point. I realized the pillars was in the wrong place and because of that we got problems to keep the reflector in the correct position
to FLIR focus.
09:58 am: Started checking the temperature and the parameters.Changed the pillars to the original position (0.5645m) just |
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Fri Jun 16 17:40:28 2023, Aiden, Update, Clean & Bake, Clean and Bake Batch 14
|
Cleaned and Baked the new and 2.75" copper gaskets for the vacuum system. Cleaned them with liquinox in the ultra sonic washer for 10 minutes. Then dried
them with nitrogen. Then put the copper parts into the oven for the following steps; 1. Ramp to 100 degC in 15 minutes 2. Dwell at 100 degC for 30 minutes
3. Ramp to 175 degC in 30 minutes 4. Dwell at 175 degC for 24 hours 5. Turn off
Also bagged and tagged the parts from Batch 13 and placed them into |
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Fri Jun 16 16:17:13 2023, Pamella, Update, FLIR, FLIR - Change the position
|
[Pamella]
Today I change the distance between the FLIR camera and reflector (3D-Mask with mirrors and light). Now the distance is 0.3282 m.
Note: In this distance is possible move up and down the reflector and take data to compare.
The focal point inside the reflector keeping
like little problem, every time I tried adjust this I got some triangles is not with "perfect emission" (looks like different than the others). Also if |
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Wed Jun 14 15:35:36 2023, Pamella, Update, VAC, Heating system installation
|
[Pamella and Cao]
Heating system installation - Second day.
Today we kept installing the equipment for the heating system.
First: Started installing the two heating cable around the chamber vacuum, the arms and covered it with aluminum tape.
Second: Started
installing the insulation stuff around the vacuum chamber and around the connections points (the arms) in the vacuum chamber.
Third:Started |
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Tue Jun 13 21:33:46 2023, Pamella, Update, General, New cabinet for PPI
|
[Pamella and Dr.Richardson]
Dr. Richardson installed the new cabinet outside the room for the PPI equipments, and then I wiped all surfaces inside
and outside of the new cabinet.
Dr.Richardson and I have finished organizing the PPI within the new cabinet. Also we have new supplies of gloves,
and will likely have more supplies for other PPIs soon. |
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Tue Jun 13 21:08:46 2023, Pamella, Infrastructure, VAC, Heater system - Installation
|
[Pamella, Cao and Jon]
Heating system installation
Today we started installing the equipments for the heating system.
First: Started installing the heating cable on the top lid and covered it with aluminum tape.
Second: Started installing the insulation
cover on top of the chamber lid.
Third:Started installing the heating cable from under the vacuum chamber and covered with aluminum tape.
|
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Tue Jun 13 13:25:05 2023, Aiden, Summary, Clean & Bake, Clean and Bake Batch 13
|
Cleaned and Baked the new 1.33" and 2.75" blanks for the vacuum system. Cleaned them with liquinox in the ultra sonic washer for 10 minutes. Then dried
them with nitrogen. Then put the two stainless steel parts into the oven for the following steps;
1. Ramp to 100 degC in 15 minutes
2. Dwell at 100 degC
for 30 minutes
3. Ramp to 200 degC in 30 minutes
4. Dwell at 200 degC for 48 hours
5. Turn off |
|
Tue Jun 13 10:28:50 2023, Pamella, Update, General, Wiped and bagged the heating and cords.
|
[Pamella]
Cleaning the heater system parts.
09:13 am: Started wiping the last parts for the heater system (heating and cords).
10:18 am: Finished wiping the parts to the heater system (heating and cords). I wiped, tagged and bagged the heating and cords.
Note: In some parts looks like the silicone insulation material is having some sort of residue on the wipe so I wiped very careful this part and just for |
|
Mon Jun 12 18:52:00 2023, Pamella, Update, General, Heater system parts - Wiped and bagged
|
[Pamella]
Cleaning the heater system parts.
04:32 pm: Started wiping the heater system parts.
06:38 pm: Finished wiping the heater
and some parts to the system. I wiped, tagged and bagged the heater system, power cables, adapter cables and power connectors. Also I wiped, bagged and
tagged the aluminum foil tape.
06:43 pm: I putted all bags inside the cleanroom.
To do: I started but I was not able to finished |
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Mon Jun 12 12:15:10 2023, Pamella, Update, FLIR, FLIR- Take data in the closest point.
|
[Pamella]
Used the closest point possible for the reflector in front of the FLIR camera.
11:32 am : Turned on the electronic device
(current on) for started taking data.
11:50 am: Started checking the temperature and the parameters.
12:04 pm: Started taking snap
after waited for 30 minutes with the current on. Parameters: Current: 0.13A , Volt: 1.8V and Temperature: 51.4 C.
Note: This snap is in the |
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Thu Jun 8 14:51:58 2023, Pamella, Update, FLIR, FLIR- Distance
|
[Pamella, Tyler]
Today we change the distance between the FLIR camera and reflector (3D-Mask with mirrors and light). Now the distance is
0.2032 m.
Note: This distance is just for take a snap most close possible but we need move again for a little far way because in this distance
we can't move up and down the reflector for have data to compare.
|
|
Tue Jun 6 16:15:09 2023, Peter, Update, VLC Update, Launch Optics for Visible Light Cavity
|
I assembled the first few components of the launch optics for the visible light cavity. Below is an image of the current table configuration, and the image
is how the cavity will be oriented on the table. |
|
Tue Jun 6 16:04:46 2023, Aiden, Update, General, Water
|
| Aiden went and refilled the de-ionized water to continue clean and bake batches. |
|
Fri Jun 2 14:28:40 2023, Pamella, Update, FLIR, FLIR project - Test without the black wall.
|
[Pamella]
Test without the black wall.
Note: So today i collected data for some positions in axis Y (height) for starting
analyses and compares the triangles shapes. I tried keep the same parameters every time.
First position:
01:20 pm :
Started testing and collection data. Parameters: 0.10 A, 1.6V. Reference position: (0,0.05).
01:30 pm : Started snapping the screen. Parameters: |
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Thu Jun 1 14:41:36 2023, Pamella, Update, FLIR, FLIR project - Test without the black wall.
|
[Pamella]
Test without the black wall.
General test:.
11:15 am : Started running the code. Parameters: 0.11 A, 1.9V and
focus distance around 0.55m.
11:28 am : Started snapping the screen. Parameters: 0.12 A, 1.8V and 44.1 C .
First trying:
01:18 pm : Started testing and collection data. Parameters: 0.09 A, 1.4V. Reference position: (0,0).
01:28 pm : Started snapping the screen. |
|
Wed May 31 16:55:55 2023, Pamella, Update, FLIR, FLIR- Focus distance
|
[Pamella and Tyler]
We changed the FLIR Focus Distance for around 0.55 m.
Note: The old focus distance was 1.3 m.
We
tested this new focus distances and looks good. I attached a snap below.
Parameters: 0.1 A , 1.5 V and 38.4 C.
|
|
Wed May 31 16:18:41 2023, Aiden, Summary, General, Mock FROSTI
|
| Finished assembly on the Mock FROSTI so it is ready for the fit test at LIGO lab. |