Reports of 16910
VIS (EX)
takafumi.ushiba - 13:36 Wednesday 27 October 2021 (18709) Print this report
User code error of ETMX guardian at Tripped state

I saw the user code error of ETMX guardian today.
I didn't fix the bug and manually went to SAFE state for my work.

Images attached to this report
PEM (Center)
shinji.miyoki - 12:25 Wednesday 27 October 2021 (18708) Print this report
Comment to Increased the temperature at parking area inside the mine (?) (18706)

This enhancement is correlated with the temp change in the corner station machine room where Rishabh kun set several instruments that generate heat!

As you know, this room and the front area of IXYV are connected with each other thtough the spiral staircase hole, and a strong fan is set to flow the air from the top of this spiral staircase to the front room in the first floor.

So, I guess his activity is the source. But anyway, I hope it will be harmless, and it is not related to some troubles that generate heat.

FCL (Air)
shinji.miyoki - 12:13 Wednesday 27 October 2021 (18707) Print this report
Comment to Temp adjustment in the corner station (18674)

Hayakawa-kun found a different performance in BS-C cooler from others. It seems to repeat "defrosting" (~18 C air generation) and cooling (~9C air generation) because the BS-C cooler got a lot of frosting in its cooling system. Others have no such frosting even if the operation condition, such as the amount of water flow, seems to be same with each other.

We reported this to the maker, and now wait his opinions.

PEM (Center)
takaaki.yokozawa - 11:22 Wednesday 27 October 2021 (18706) Print this report
Increased the temperature at parking area inside the mine (?)
This is just the notification.

This morning, I felt very hot (higher temperature) at the parking area inside the mine.
I checked the temperature monitor which is placed at the zenshitsu(between parking area and experiment area)
From this monitor, the temperature increased 1 deg yesterday noon.
But from the information of the Hayakawa-san and Miyoki-san, they didn't do special work which affect them.
Images attached to this report
Comments to this report:
shinji.miyoki - 12:25 Wednesday 27 October 2021 (18708) Print this report

This enhancement is correlated with the temp change in the corner station machine room where Rishabh kun set several instruments that generate heat!

As you know, this room and the front area of IXYV are connected with each other thtough the spiral staircase hole, and a strong fan is set to flow the air from the top of this spiral staircase to the front room in the first floor.

So, I guess his activity is the source. But anyway, I hope it will be harmless, and it is not related to some troubles that generate heat.

PEM (Center)
takaaki.yokozawa - 11:18 Wednesday 27 October 2021 (18705) Print this report
Compared the spectrum of OMC chamber vacuum vs air
I compared the spectrum of the OMC chamber(geophone on the optical table and seismometer on the floor of the OMC area) between vacuum(10/25 night) and air(10/26 night)
Mainly, there are four difference between 10/25 night and 10/26 night
1. Ground motion is different
2. Tentative large frange was removed and placed the alminium
3. Air vs vacuum
4. Removed the vacuum pump and its tube

The spectrum showed
1. the spectrum shape difference below 2 Hz may come from the ground motion itself (from the spectrum of both geophone and seimometer)
2. Very large peak at 6.3 Hz was disappeared, this peak may come from the tentative large frange.
3. The new peak around 7 and 9 Hz appeared, this is also detected in previous klog18449.
4. 5.35 Hz ground motion peak which was appeared only 26 night is unknown.
Images attached to this report
DetChar (General)
shoichi.oshino - 9:21 Wednesday 27 October 2021 (18703) Print this report
SummaryPage trouble: process was stopped from 10/26 17:00 UTC
SummaryPage GIF process was stopped from 10/26 17:00 UTC.
I deleted this process.
After this work, SummaryPage starts to create plots.
VIS (PR2)
takaaki.yokozawa - 7:59 Wednesday 27 October 2021 (18702) Print this report
Comment to Survey of POS and POP for consideration of installing a rebooter (18698)
POS-POM

We found the driver is placed in the SR2 mini rack on the 2nd floor of the clean booth, and there are cable between mini rack and SR2 feedthrough(1st floor).
From our eye, there are already set the rebooter, but we will ask Ikeda-san about installation.
VAC (General)
nobuhiro.kimura - 5:02 Wednesday 27 October 2021 (18701) Print this report
Vacuum break for OMC
When:
13:21~14:40 26/Oct./2021
Who:
Kimura (ICRR), M. Takahashi (ICRR) and Sawada (Hokuto)
Task:
Vacuum break for OMC.
OMC chamber was pressurized up to atmospheric pressure.
Provisional falnge of SRM side will be removed on 27/Oct./ morning.
See attached photos.
Images attached to this report
CRY (Cryostat EY)
nobuhiro.kimura - 4:56 Wednesday 27 October 2021 (18700) Print this report
Set up Oplev glass window ports at EYC
When:
25/Oct./2021~26/Oct./2021
Who:
Kimura (ICRR), M.Takahashi (ICRR) and Sawada (Hokuto)
Task:
Set up Oplev glass window ports to inner and outer shields in the EYC.
Attached the ports in this work are as follows;
For the platform;
(1) -X,+Y for inner shield
(2) -X,+Y for outer shield
(3) +X,+Y for inner shield
(4) +X,+Y for outer shield

For the marionette;
(1) -X,+Y for inner shield
(2) -X,+Y for outer shield
(3) -X,-Y for inner shield
(4) -X,-Y for outer shield
(5) +X,-Y for inner shield
(6) +X,-Y for outer shield

Re-tightening of the bolts will be done on 27/Oct. afternoon.
See attached photos.
Images attached to this report
VIS (IX)
ryutaro.takahashi - 21:03 Tuesday 26 October 2021 (18699) Print this report
Recovery of BF actuator

[Takahashi, Sato]

We checked the BF actuator.

  • DC magunitude of the transfer function from the actuator to the LVDT was <-70dB in the fixed BF and -60dB in the free BF, respectively. 
  • The secondary coil may touch the primary coil when the BF was fixed with the weight on the cup. The secondary coil was centered for the primary coil as much as possible.
  • The wrong magnets were assembled in the yoke. Direction of the polarization (N/S) was horizontal. We replaced them to the magnets with the vertical polarization.
  • DC magunitude of the transfer function was improved to -40dB in both fixed and free BF.
Images attached to this report
VIS (PR2)
koji.nakagaki - 19:21 Tuesday 26 October 2021 (18698) Print this report
Survey of POS and POP for consideration of installing a rebooter
[Yokozawa, Nakagaki]

In order to make a decision on the installation of the rebooter, we surveyed the POP and POS picos.

POS optical table
There is one set of pico motor (mirror mount) on the optical table: Photo 1
There is one pico driver on the side of the optical table: Photo 2
Pico motor and Pico driver are not connected to each other.

POP optical table
There are three sets of pico motor (mirror mount) on the optical table: Photo 3,4
There is one pico driver on the optical table: Photo 5
Pico motor (3 sets) and Pico driver are not connected.

POP-POM
There is a Dsub-IF for Pico in the feedthrough on the first floor of PR2: Photo 6
One Pico driver is placed in a small plastic rack next to the PR2: Photo 7
Pico motor and Pico driver are connected to each other.

[Confirmation]
1.For both POS and POP, the pico motors on the optical table were not connected, but do they need to be in operation during the observation?
2. Is a rebooter necessary for the pico motor drivers on the POS and POP optical tables?
3. The pico motor on the POP-POM is running, so I'm thinking of installing a rebooter, is that correct?
Images attached to this report
Comments to this report:
takaaki.yokozawa - 7:59 Wednesday 27 October 2021 (18702) Print this report
POS-POM

We found the driver is placed in the SR2 mini rack on the 2nd floor of the clean booth, and there are cable between mini rack and SR2 feedthrough(1st floor).
From our eye, there are already set the rebooter, but we will ask Ikeda-san about installation.
VIS (General)
takafumi.ushiba - 18:37 Tuesday 26 October 2021 (18697) Print this report
Making template files for measuring TF from each coil excitation

I made template files from COILOUTF excitatyion to each sensors.
To check the template and automeasurement scripts, I am running the scripts tonight.

CRY (Cryostat IY)
rishabh.bajpai - 18:30 Tuesday 26 October 2021 (18696) Print this report
IYC Experiment
I set up my cryogenic and RION accelerometer near the cryocoolers in the machine room and did some measurements
Images attached to this report
VIS (General)
satoru.ikeda - 18:06 Tuesday 26 October 2021 (18695) Print this report
Comment to Installation of temperature control equipment (17964)

[Ikeda, Nakagaki-san, Yasui-san, Ushiba-san(Remote)]

Installed ribbon heaters on PRM and PR2.
PRM is all installed.
PR2 could not be installed until the end because of the missing three-prong outlet, lack of parts, and lack of time.
The thermometer and two seals installed in the PR2 chamber were moved down a bit after consulting with Ushiba-san, Yokozawa-san and Kimura-san respectively.

Performed temperature rise test on PRM.
We set the SLOPE of the temperature controller to 4 and the target temperature to 40°C. We heated the unit for about an hour and a half, and the temperature rose to 34.1°C.
PR2 will be tested again later.

We checked the value of TM_WIT in PR3 before and after the work and found that the value fluctuated as shown in K-Log #18691, but it was due to LED lighting and was not affected by this work.

[Remaining work on temperature control equipment]

IY, EY: Installed ribbon heaters, installed thermocouples, wrapped aluminum tape, installed power regulator, temperature rise test
IX, EX, PRM: Available
BS, SR2, SR3, SRM: Temperature rise test completed, power regulator installed after delivery (November)
PR2: Need to re-purchase three-prong outlet, otherwise complete, temperature rise test not yet conducted
PR3: Ribbon heater purchased, to be installed after confirming need for installation.

[Main work]
Installation of power regulator: waiting for power regulator to be obtained
Temperature rise test: Determine the SLOP value of the power regulator and set it to rise to about 30°C.
 

Images attached to this comment
Non-image files attached to this comment
VIS (IY)
masahide.tamaki - 17:57 Tuesday 26 October 2021 (18693) Print this report
Template diaggui files for health check (ITMY IM)

[Ushiba-san, Tamaki]

Today, I made the template diaggui file for health check of ITMY IM in the same way as MN (klog #18642).
The figres of the templates I made are attached to this report.

Images attached to this report
DGS (General)
shoichi.oshino - 17:53 Tuesday 26 October 2021 (18694) Print this report
Recovered hardware resource monitor
Today, I found that several hardware resource monitors were not working.
I can't find the reason for this problem.
I restarted the supervisor to make sure that the values were entered correctly.
VIS (BS)
hiromi.yasui - 17:27 Tuesday 26 October 2021 (18692) Print this report
Comment to Target Sticker pasting (18655)

Tomaru-san, Yasui

We pasted the Design Height Stickers of PR3, PRM, and IMM.

VIS (General)
takafumi.ushiba - 16:58 Tuesday 26 October 2021 (18691) Print this report
LED light affects OpLev signals

[Ikeda, Yasui, Ushiba]

Abstract:
Today, I found there are strange jumps of signals of PRM, PR2, and PR3 OpLevs, so we checked the reason.
Finaly, we found that the LED lights at the cleanbooth affects the OpLev signals a lot.
So, we need to take care the LED light condition before and after the mine work.

Detail:
Tere are several strange jumps of the signals of PRs' OpLevs today (fig1).
First, we suspected the work for VIS heaters but we found no change by turning on and off the installed heaters.
Then, we  suspected the effect from the LED light and found that the LED light affets a lot for OpLevs.
So, we turne on and off one by one, and now all PRs' OpLev signals seems to be back in the morning condition.

We need to take care the LED light condition not to lose the OpLev references.

Images attached to this report
VIS (IX)
Takumu Sugiyama - 16:15 Tuesday 26 October 2021 (18690) Print this report
Comment to Tuning of LVDT type accelerometer for ITMX (16468)
I calculated the matrix which transforms the signals of the accelerometer to L, T, Y direction, and modified FLDACC2EUL matrix.
Then, I accepted the SDFs.
Please check the following figures.
Images attached to this comment
CAL (YPcal)
dan.chen - 15:15 Tuesday 26 October 2021 (18689) Print this report
Fixing conectors on Tx and Rx module

Date: 2021/10/26

Members: Dan Chen, Darkhan Tuyenbayev

We fixed every connectors with screws on YPcal Tx/Rx module except the connector which includes interlock cables and a thermometer in Tx module.

We did not connect this connector because there is an unstable soldering (?) on it and we will repair it later.

So the temperature output in Tx module of YPcal always shows ~0 degrees.

(The laser and AOM driver are OFF, and the shutters are close now, so the temperature inside the Tx module will never be higher.)

PEM (Center)
takaaki.yokozawa - 13:52 Tuesday 26 October 2021 (18688) Print this report
Reinforcing the PSL ondotori
[Kume, Yokozawa]

We performed the reinforcing the PSL ondotori (PT100_3 and PT100_4).
this work is 11:33-11:43 26th Oct.
Images attached to this report
VIS (SR2)
takaaki.yokozawa - 13:50 Tuesday 26 October 2021 (18687) Print this report
SR2 IM H1 cable disconnected
This is yesterday's report, sorry for late notice.
During the work with Nakagaki-san yesterday, I noticed the SR2 IM H1 D-sub cable was disconnected.
Please check it (or Please check all cables at all feedthrough)
Images attached to this report
VIS (General)
takafumi.ushiba - 12:39 Tuesday 26 October 2021 (18686) Print this report
Comment to Test for template files for spectra and PLANT measurement (18684)

I attached the screenshots of measure data for ITMX PLANT yesterday.
These data can be seen in the directry /kagra/Dropbox/Measurements/VIS/PLANT/ITMX/0/ as I explained in the original post.
For ETMX results can be seen in the directry /kagra/Dropbox/Measurements/VIS/PLANT/ETMX/0/ as well.

During the check of data, I found several templates have wrong reference, so I will fix them today.
Also , I found the data in PLANT_ETMX_STANDBY_IP_TEST_L_0001.xml was broken, so we cannot use it.
I'm not sure this problem due to my code or just failure of saving files due to other reasons, so I will again test it in this night.

Images attached to this comment
VIS (IY)
masahide.tamaki - 9:00 Tuesday 26 October 2021 (18685) Print this report
Comment to Template diaggui files for health check (18642)

Ushiba-san,

Thank you for your comment.
I'll check it and fix today.

VIS (General)
takafumi.ushiba - 21:52 Monday 25 October 2021 (18684) Print this report
Test for template files for spectra and PLANT measurement

[YamaT, Ushiba]

Abstract:
I tested the template files and automeasurement scripts for spectra and PLANT measurements.
Preparation of  templates for spectra has been finished and they can be measured from the scripts.
Preparation of template for PLANT measurement is ongoing and now we can measure the mechanical transfer function of following DoFs from scripts:
IP{L,T,Y},BF{L,T,V,R,P,Y},{F0,F1,F2,F3,BF} GAS,MN{L,T,R,P,Y}.

Details:
We prepared template and automeasurement scripts for spectra measurements.
Measured data was stored at /kagra/Dropbox/Measurements/VIS/SPECTRA/{DIRNAME}/ with the name of SPE_{SUSNAME}_{STATE}_{SIGNALS}_{REFNUM}.xml.
{SUSNAME} is like ITMX, ETMX, and so on.
{STATE} is the guardian state when the measurement starts such as SAFE, ISOLATED, ALIGNED, and so on.
{SIGNALS} is classification of signals and currently I prepared IP, BF, GAS, PAYLOAD, and OPLEV.
{REFNUM} is a serial number of the measurement like 0001, 0002, and so on.
{DIRNAME} is a round down numbers of REFNUM like 0, 100, 200, and so on.

Also, we prepared template and automesurement scripts for TF measurement.
Measured data was stored at /kagra/Dropbox/Measurements/VIS/PLANT/{SUSNAME}/{DIRNUM}/ with the name of PLANT_{SUSNAME}_{STATE}_{STAGE}_{PORT}_{DOF}_{REFNUM}.xml.
{STAGE} is a stage we excite like IP, BF, F0, MN, and so on.
{PORT} is a excitation port like TEST and COILOUT.
{DOF} is a degrees of freedom we excite like L, T, V, ... or H1, H2, and so on.

I continue to run the script tonight and will report measurement results tomorrow.

Comments to this report:
takafumi.ushiba - 12:39 Tuesday 26 October 2021 (18686) Print this report

I attached the screenshots of measure data for ITMX PLANT yesterday.
These data can be seen in the directry /kagra/Dropbox/Measurements/VIS/PLANT/ITMX/0/ as I explained in the original post.
For ETMX results can be seen in the directry /kagra/Dropbox/Measurements/VIS/PLANT/ETMX/0/ as well.

During the check of data, I found several templates have wrong reference, so I will fix them today.
Also , I found the data in PLANT_ETMX_STANDBY_IP_TEST_L_0001.xml was broken, so we cannot use it.
I'm not sure this problem due to my code or just failure of saving files due to other reasons, so I will again test it in this night.

Images attached to this comment
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