| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
264
|
Mon Nov 13 11:07:50 2023 |
Tyler | Update | VAC | RTD Analysis |
After initial analysis from last week
on a single RTD, I then extended to looking
at all 8 in series with R_ref (set to 1 kOhm). |
|
|
271
|
Mon Nov 20 10:10:50 2023 |
Tyler | Configuration | Electronics | RTD Logic/Schematic Diagrams |
Below are a basic diagram of what the
RTD measurement circuit logically looks like
and an example schematic of the actual wiring. |
|
|
274
|
Tue Nov 21 14:47:24 2023 |
Tyler | Update | Lore | 1129 Workbench Assembly Update 1 |
[Tyler, Shane, Mohak, Cynthia, Luke,
Michael, Luis]
Started assembly of the workbench |
|
|
278
|
Mon Nov 27 14:22:30 2023 |
Tyler | Update | Lore | 1129 Assembly Update | [Tyler, Michael, Luke, Cynthia]
The
tabletops have been attached to the workbench
frames. Unfortunately, one of the tabletops |
|
|
281
|
Thu Nov 30 13:50:32 2023 |
Tyler | Update | Lore | Workbench Assembly Completed | [Tyler, Luke, Aiden]
The workbenches
are now completely assembled and put into
their final places. Additionally, the tool |
|
|
300
|
Tue Jan 9 12:08:59 2024 |
Tyler | Configuration | Electronics | RTD Readout Chassis Update |
Below is the current state of the RTD
readout chassis wiring. Initial continuity
tests seem good, will run through one more |
|
|
305
|
Tue Jan 16 12:20:21 2024 |
Tyler | Configuration | Electronics | RTD Readout Chassis Update 2 |
I performed another continuity test on
the RTD chassis wiring, and everything seems
to be set up correctly. The chassis should |
|
|
310
|
Tue Jan 23 12:17:41 2024 |
Tyler | Update | Electronics | RTD Chassis |
After updating the wiring in the RTD
Chassis, a signal is now seen at each ADC
input. However, there seems to be a discrepancy |
|
|
311
|
Tue Jan 30 11:36:19 2024 |
Tyler | Update | Electronics | RTD Chassis |
|
|
|
323
|
Tue Feb 13 11:54:45 2024 |
Tyler | Configuration | FLIR | In-Air Optical Test Configuration |
Below is the proposed schematic for FROSTI
optical testing, chosen so enough space is
allotted for prototype assembly.
|
|
|
324
|
Tue Feb 13 12:26:23 2024 |
Tyler | Update | Interferometer Simulations | BS Code Update | I reproduced Cao's CE beamsplitter code
(see below for example plots). I received
the current info on the beamsplitter parameters |
|
|
331
|
Tue Feb 20 11:31:49 2024 |
Tyler | Update | Cleanroom | Garment Cabinet Door Replacement | [Luis, Luke, Pooyan, Tyler]
The replacement
door for the HEPA garment cabinet arrived
last week, and was installed on Thursday. |
|
|
338
|
Fri Feb 23 18:03:27 2024 |
Tyler | Update | FLIR | Optical Test Setup in Cleanroom | [Tyler, Xuesi]
The FLIR and test mass
stand-in have been transferred into the cleanroom.
A software test will be run as soon as we |
|
|
344
|
Wed Feb 28 12:02:08 2024 |
Tyler | Update | General | Resistors for Heater Elements Update | Power Res (Ohm) RTD Res (Ohm)
Heater
1= 72.8; 80.6
Heater 2= 69.5; 80.8
Heater
3= 70; 83.2
Heater 4= 70.6; 78.7
Heater |
|
|
345
|
Wed Feb 28 17:49:18 2024 |
Tyler | Update | TCS | FROSTI Assembly - Days 2-3 | [Aiden, Jon, Luis, Luke, Michael, Tyler]
FROSTI
assembly was completed today. The RTD and
power wires were terminated at the DB-25 |
|
|
347
|
Wed Mar 6 09:57:52 2024 |
Tyler | Update | TCS | FROSTI Wiring | Upon finishing the FROSTI assembly last
week, we ran into some electrical issues.
An electrical short was found between two |
|
|
349
|
Tue Mar 19 10:55:30 2024 |
Tyler | Update | FLIR | In-Air Optical Test | Below is an image I took using the FLIR just
before leaving for the LVK meeting. The profile
is roughly what we would expect (annular). |
|
|
351
|
Thu Mar 21 16:56:42 2024 |
Tyler | Update | DAQ | RTD Parameter Calibration | [Jon,Tyler]
We noticed that the RTD
temperature readings given on the Cymac were
off, and traced the issue to miscalibration |
|
|
354
|
Mon Mar 25 10:55:33 2024 |
Tyler | Update | DAQ | RTD Parameter Calibration | Refitted RTD calibration, neglecting quadratic
term:
R_0
(ohm) Alpha (1/C) |
|
|
355
|
Tue Mar 26 13:51:56 2024 |
Tyler | Update | DAQ | RTD Parameter Calibration | Another re-fit, but this time the quadratic
coefficient (beta) is set to 1.003e-6:
R_0 (ohm) Alpha |
|
|
364
|
Thu May 2 22:43:36 2024 |
Tyler | Update | Electronics | RTD Readout Chassis Redesign | [Tyler, Jon]
Today the FROSTI RTD
readout chassis underwent a redesign:
Instead of the original ratiometric |
|
|
366
|
Mon May 13 13:03:41 2024 |
Tyler | Update | FLIR | Readout Code Updates | [Tyler]
Some changes have been made
to the FLIR readout code to help improve
its functionality:
More accurate |
|
|
373
|
Mon Jun 3 14:14:39 2024 |
Tyler | Update | FLIR | Initial CIT FROSTI Analysis | [Tyler]
Attached below are the initial
results of the CIT FROSTI testing analysis.
|
|
|
375
|
Mon Jun 10 14:52:38 2024 |
Tyler | Update | FLIR | CIT FROSTI Analysis Update | [Tyler]
Upon further inspection, one
adjustment was made to the FROSTI profile
analysis: changing the transmission value |
|
|
416
|
Mon Jul 29 13:39:16 2024 |
Tyler | Update | DAQ | RTD Parameter Calibration | [Tyler]
Using the data taken during
the FROSTI testing at Caltech, I attempted
to find a better calibration of the RTD sensors, |
|
|
417
|
Mon Jul 29 14:30:16 2024 |
Tyler | Update | Cleanroom | RIN Measurement Set-up | [Tyler]
I have begun moving parts
into the cleanroom for the upcoming FROSTI
RIN tests that will be conducted within the |
|
|
422
|
Mon Aug 12 16:24:34 2024 |
Tyler | Update | Cleanroom | RIN Measurement Update 1 | [Tyler]
For some preliminary tests,
I moved the IR photodetectors outside of
the cleanroom and onto the other optical |
|
|
434
|
Tue Sep 3 18:24:17 2024 |
Tyler | Update | CDS | Cymac Timing Chassis Issue | [Tyler, Jon]
The timing chassis used
for the cymac has been shut off due to an
unknown issue causing its supplied current |
|
|
442
|
Mon Sep 16 14:59:51 2024 |
Tyler | Update | TCS | FLIR RIN Update 09/16 |
Below is the dark noise spectrum of the
Red Pitaya, which was measured over the course
of a weekend. Additionally, I have successfully |
|
|
447
|
Mon Sep 23 15:11:21 2024 |
Tyler | Update | Scripts/Programs | Effective Emissivity Analysis and RIN Update | A quick update on the effective emissivity
analysis for the CIT FROSTI testing:
I was able to (roughly) match |
|
|
453
|
Wed Oct 2 12:20:43 2024 |
Tyler | Update | TCS | Updated FROSTI Analysis 10/02/2024 | Attached below are updates on current FROSTI
prototype analysis. |
|
|
457
|
Wed Oct 9 13:52:31 2024 |
Tyler | Update | TCS | RIN Update 10/09/2024 | I tried adjusting the gain settings on
the photodetectors to check if this would
help improve the RIN spectra measurements. |
|
|
466
|
Tue Oct 29 16:37:35 2024 |
Tyler | Update | Electronics | Red Pitaya OS Update | The Red Pitaya ecosystem has been upgraded
to OS 2.00-35, with a key feature
being greater freedom in adjusting the sampling |
|
|
470
|
Wed Nov 13 14:03:32 2024 |
Tyler | Update | Electronics | RIN Update | [Tyler]
We've added two low-pass filters
in hopes of reducing any potential aliasing
that may be introducing additional noise |
|
|
477
|
Wed Nov 20 12:59:37 2024 |
Tyler | Update | Electronics | RIN Update | I went ahead and compared the noise spectrum
of the ADC to those of the photodetectors
with the FROSTI on and off. As discussed |
|
|
479
|
Wed Nov 27 13:48:01 2024 |
Tyler | Update | Electronics | RIN Update | [Tyler]
I downgraded the Red Pitaya
back to OS 2.00-18 due to runtime errors
during measurement. Once I did this, the |
|
|
486
|
Wed Dec 11 13:39:30 2024 |
Tyler | Update | Electronics | RIN Update 12/11/2024 | [Tyler]
Attached below are updated
ASD plots for the FROSTI RIN measurements.
The parameters set for this are the following: |
|
|
492
|
Wed Dec 18 15:41:56 2024 |
Tyler | Update | TCS | FROSTI RIN | [Tyler]
I have begun the (hopefully)
final RIN measurements at 3:30 PM today.
If you need to go into the cleanroom at any |
|
|
495
|
Mon Dec 23 14:33:36 2024 |
Tyler | Update | TCS | Latest RIN Measurement Results | Attached below are the measurements I took
from the FROSTI from 12/18-12/22. |
|
|
498
|
Tue Jan 14 10:27:14 2025 |
Tyler | Update | TCS | RIN Updates | [Tyler]
Attached below are updated
plots for the FROSTI RIN measurements for
Jan 14 group meeting.
|
|
|
499
|
Fri Jan 17 13:27:07 2025 |
Tyler | Update | TCS | FROSTI Pre-disassembly | [Tyler, Ma, Cece, Jon, Luke, Cynthia, Michael]
On
Tuesday, we prepared the FROSTI for disassembly
in anticipation of the APS filming that is |
|
|
501
|
Wed Jan 22 10:50:08 2025 |
Tyler | Update | TCS | FROSTI Disassembly | [Tyler, Ma, Cece, Luis, Shane, Luke, Cynthia,
Liu, Jon]
On Tuesday (Jan 21), we took
the FROSTI apart in front of a filming crew. |
|
|
516
|
Tue Feb 18 10:12:39 2025 |
Tyler | Update | TCS | Final RIN Plot Update |
Below is a preview of the final RIN figure
that will be included in the FROSTI instrument
paper. A quick summary of what is shown below:
|
|
|
531
|
Tue Mar 4 10:28:58 2025 |
Tyler | Update | TCS | RIN Plot Updates | |
|
|
542
|
Tue Mar 25 12:56:47 2025 |
Tyler | Update | TCS | FROSTI Analysis Finalization | Upon final review of the FROSTI analysis
included in the (hopefully) soon-to-be submitted
instrument paper, I've made some adjustments |
|
|
570
|
Tue May 6 12:25:03 2025 |
Tyler | Configuration | CDS | Cymac ADC CSD measurement | An initial measurement of the cymbal ADC CSD
is attached below. As of now, it seems that
the sensitivity limit is roughly the same |
|
|
577
|
Tue May 13 12:41:06 2025 |
Tyler | Update | TCS | A# Profiles Update | Slides on the A# ITM FROSTI profile modeling
efforts can be found here. |
|
|
595
|
Tue Jun 17 12:46:47 2025 |
Tyler | Update | Electronics | CyMAC ADC Noise | Below are results from power spectra measurements
of the CyMAC ADC, computed form 30 hours
of time series data, compared to the performance |
|
|
597
|
Tue Jun 24 12:45:16 2025 |
Tyler | Update | General | Updated ADC spectra | [Tyler]
Updated ADC noise spectra measurements
using diaggui.
NOTE: Will update plots |
|
|
602
|
Tue Jul 1 12:39:42 2025 |
Tyler | Update | TCS | A# FROSTI Profile Optimization Update | [Tyler, Liu]
Slides |
|