| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
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 |
|
|
134
|
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 |
|
|
162
|
Tue Jul 18 14:13:46 2023 |
Sophia | Update | Scripts/Programs | Update on Laser Noise Data Collection and Analysis | 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 |
6x |
|
174
|
Thu Jul 27 11:28:36 2023 |
Sophia | Update | Scripts/Programs | Update on Laser Noise Data Collection and Analysis: Dynamic CSD and PSD Plots | This week I have successfully been able to
implement our dynamic CSD and PSD plotting
code, but along the way I encountered a few |
|
|
175
|
Thu Jul 27 14:11:42 2023 |
Sophia | Update | Scripts/Programs | Update on Laser Noise Data Collection and Analysis: Dynamic CSD and PSD Plots | Here's a screen recording of the dynamic raw
data and PSD/CSD plots as they are now. Will
begin working on implementing a code to generate |
|
|
183
|
Mon Jul 31 19:27:30 2023 |
Sophia | Update | Scripts/Programs | Update on Laser Noise Data Collection and Analysis: Dynamic CSD and PSD Plots | An update on the CSD/PSD code:
The code
is now taking a dynamic average of the points,
and that has significantly reduced the noise |
|
|
186
|
Tue Aug 1 15:44:31 2023 |
Sophia | Update | Scripts/Programs | Update on Laser Noise Data Collection and Analysis: Dynamic CSD and PSD Plots | We have identified two problems facing the
intensity noise calculations, which we are
working to solve.
The first of these |
6x |
|
194
|
Mon Aug 7 15:36:18 2023 |
Sophia | Update | Scripts/Programs | Update on Laser Noise Data Collection and Analysis: Dynamic CSD and PSD Plots | Today I was able to fix the red pitaya's plotting
problem, and get my code to recognize driving
frequencies from the function generator to |
7x |
|
196
|
Tue Aug 8 16:47:11 2023 |
Sophia | Update | Scripts/Programs | Update on Dynamic CSD and PSD Plots | We have fixed our rapid plotting error, and
realized that this has not been affecting
our data intake! Below is a video of the |
|
|
206
|
Tue Aug 15 10:35:00 2023 |
Sophia | Update | Scripts/Programs | Update on Laser Noise Data Collection and Analysis: Dynamic CSD and PSD Plots | I have successfully added a button to my graphics,
but it has posed a strange issue with the
CSD and PSD values. When I plot my original |
|
|
207
|
Tue Aug 15 13:32:37 2023 |
Sophia | Update | Scripts/Programs | Update on Laser Noise Data Collection and Analysis: Dynamic CSD and PSD Plots | I have now fixed all issues that I was having
this morning, and have added text boxes which
show the peak values of both PSD's and the |
|
|
391
|
Mon Jul 1 11:45:45 2024 |
Sid | Update | Interferometer Simulations | | Progress update: Most of last week was spent
getting set up with SIS, and learning how
to do basic simulations. The goal for this |
|
|
259
|
Thu Nov 9 13:57:58 2023 |
Shane, Luis, Aiden, Tyler | Update | Cleanroom | cleanroom cleaning and particle count |
[Aiden, Shane,
Luis, Tyler]
cleaning cleanroom
and particle count |
|
|
290
|
Mon Dec 11 12:58:57 2023 |
Shane, Luis | Update | CDS | DAC-ADC loopback test debugging | [Luis, Shane]
Working on debugging last
week's weird results for the ADC-DAC loopback
test for channels 14 and 15. With DAC output |
|
|
254
|
Thu Nov 2 17:14:36 2023 |
Shane, Jon | Update | CDS | CyMAC set up permanentized |
CyMAC connections
have been finalized and made permanent. Also
tested voltages, which are all looking good. |
|
|
171
|
Mon Jul 24 16:19:29 2023 |
Shane, Jon | Update | Electronics | Chassis semi-assembled and moved | Began assembly on AA and AI chassis today,
moved them both to top work bench shelf (image
attached). They are delicate so please do |
|
|
176
|
Thu Jul 27 14:46:55 2023 |
Shane, Jon | Update | Electronics | AA chassis DC on/off switch assembled | Made the first DC on/off switch assembly today
and installed in anti-aliasing chassis. Second
switch assembly to be completed later. |
|
|
191
|
Thu Aug 3 18:03:42 2023 |
Shane, Jon | Update | CDS | Anti-Aliasing chassis complete | We finished installing the internal power
supply cables in the anti-aliasing chassis
today, which concludes its assembly. Work |
|
|
197
|
Tue Aug 8 17:03:22 2023 |
Shane, Jon | Update | CDS | Binary input chassis finished | Finished assembly of the binary input chassis
today, including DC on/off switch and LED
installation. external cable assemblies still |
|
|
210
|
Wed Aug 16 16:55:40 2023 |
Shane, Jon | Update | CDS | external power supply cables finished | All four external power supply cables for
the CyMAC chassis are now assembled. Using
them now to test if chassis power up correctly. |
|
|
211
|
Wed Aug 16 17:17:02 2023 |
Shane, Jon | Update | CDS | Binary input chassis powering correctly | Binary input chassis passed power-on test,
and is lighting up as expected. Binary output
chassis also successfully powered on. AA |
|
|
225
|
Thu Sep 14 17:05:38 2023 |
Shane, Jon | Update | CDS | Timing chassis setup and testing | Tested the setup today for the timing chassis
(intended to provide the timing reference
for the CyMAC). Was able to read the correct |
|
|
231
|
Fri Sep 29 17:27:30 2023 |
Shane, Jon | Update | CDS | Timing chassis assembly progress (CyMAC) | Worked on timing chassis assembly today for
the CyMAC, settled on layout (see attachment
1). Frequency synthesizer and frequency divider |
|
|
236
|
Mon Oct 9 16:59:21 2023 |
Shane, Jon | Update | CDS | timing chassis power cable and AI chassis testing for CyMAC |
[Shane, Jon]
Today's
CyMAC work:
Finished assembling
external power supply cable for the timing |
|