Diff for "KAGRA/Subgroups/VIS/OpsManual/FishingRods"

Differences between revisions 8 and 43 (spanning 35 versions)

Describe KAGRA/Subgroups/VIS/OpsManual/FishingRods here.

This page describes the status of the fishing rods.

Beam splitter

Top filter

Range:
- LVDT: [ -2500 , +4900 ] µm (7694).
- Stepper motor: [ -1,400,000 , +1,400,000 ] steps (7694).
- Temperature when measured:
Observations:
- At 25 ºC it was possible to use the fishing rod to set the keystone at nominal position (8125).
- at 24.5 ºC or colder it was not (8645, 11465).

Standard Filter

Range:
- LVDT: [ -700 , +700 ] µm (3558).
- Stepper motor: [ -870,000 to +835,000 ] steps (3558).
- Temperature when measured:
Observations:
- It's been at its lowest position since the temperature was 25 ºC (8125, 8645).
- We set the keystone to 488 µm and couldn't move it further down (8125, 8645).

Bottom filter

Range:
- LVDT: [ -1000 µm , +1800 ] µm (3280).
- Stepper motor: [ -746,000 , +746,000 ] steps (3280).
- Temperature when measured:
Observations: this fishing rod doesn't seem to have any problems, but we haven't used it at every temperature condition we've had.

SR2

Top filter

Range:
- LVDT: [ -990 , 903 ] µm (8082).
- Stepper motor: [ -1,700,000 , 1,500,000 ] steps (8082).
- Temperature when measured:
Observations:

Stardard filter

Range:
- LVDT: [ -750 , 1000 ] µm (4431).
- Stepper motor: [ 300,000 , 1,000,00 ] steps (4431).
- Temperature when measured:
Observations:

Bottom filter

Range:
- LVDT: [ -500 , 600 ] µm (4430).
- Stepper motor: [ -550,000 , -250,000 ] steps (4430).
- Temperature when measured:
Observations:

Other related entries

8082

SR3

Top filter

Range:
- LVDT: [ 885 , -1299 ] µm (7758).
- Stepper motor: [ -500,000 , 1,100,000 ] steps (7758).
- Temperature when measured:
Observations:

Standard Flter

Range:
- LVDT: [ -2000 , 2000 ] µm (4720).
- Stepper motor: [ -700,000 , 1,100,000 ] steps (4720).
- Temperature when measured:
Observations:

Bottom Filter

Range:
- LVDT: [ -1600 , +1000 ] µm (4654).
- Stepper motor: (4654).
- Temperature when measured:
Observations: After pump down I was not able to move the keystone to zero using the fishing rod. It went as high as -265 µm 8658.

Other related entries

8658, 8135.

SRM

KAGRA/Subgroups/VIS/OpsManual/FishingRods (last edited 2020-09-18 10:45:40 by fabian.arellano)

-  ⇤ ← Revision 8 as of 2019-11-11 19:11:58 → 
  Size: 613
  Editor: fabian.arellano
  Comment:
+   ← Revision 43 as of 2019-11-13 15:57:56 → ⇥
  Size: 4227
  Editor: fabian.arellano
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 5:
-Beam splitter
||<tablewidth="1202px" tableheight="156px">Stage ||Description ||Relevant log entries ||
||Top Filter ||At 25 ºC it's possible to use it to set the keystone at nominal ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8125|8125]]), but at 24.5 ºC or lower it's not ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8645|8645]]). ||[[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8125|8125]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8645|8645]] ||
||Standard Filter || || ||
||Bottom Filter || || ||
+== Beam splitter ==
=== Top filter ===
 * '''Range:'''
  * '''LVDT:''' [ -2500 , +4900 ] µm ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=7694|7694]]).
  * '''Stepper motor:''' [  -1,400,000 , +1,400,000 ] steps ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=7694|7694]]).
  * Temperature when measured:
 * '''Observations:'''
  * At 25 ºC it was possible to use the fishing rod to set the keystone at nominal position ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8125|8125]]).
  * at 24.5 ºC or colder it was not ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8645|8645]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=11465|11465]]).
-Line 11:
+Line 15:
+=== Standard Filter ===
 * '''Range:'''
  * '''LVDT:''' [ -700 , +700 ] µm ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=3358|3558]]).
  * '''Stepper motor:'''  [ -870,000 to +835,000 ] steps ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=3358|3558]]).
  * Temperature when measured:
 * '''Observations:'''
  * It's been at its lowest position since the temperature was 25 ºC ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8125|8125]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8645|8645]]).
  * We set the keystone to 488 µm and couldn't move it further down ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8125|8125]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8645|8645]]).
-Line 12:
+Line 24:
+=== Bottom filter ===
 * '''Range:'''
  * '''LVDT:''' [ -1000 µm , +1800 ] µm ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=3280|3280]]).
  * '''Stepper motor:''' [ -746,000 , +746,000 ] steps ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=3280|3280]]).
  * Temperature when measured:
 * '''Observations:''' this fishing rod doesn't seem to have any problems, but we haven't used it at every temperature condition we've had.

== SR2 ==
=== Top filter ===
 * '''Range:'''
  * '''LVDT:'''   [ -990 , 903 ] µm ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8082|8082]]).
  * Stepper motor: [ -1,700,000 , 1,500,000 ] steps ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8082|8082]]).
  * Temperature when measured:
 * Observations:

=== Stardard filter ===
 * '''Range:'''
  * '''LVDT:''' [ -750 , 1000 ] µm ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4431|4431]]).
  * '''Stepper motor:''' [ 300,000 , 1,000,00 ] steps ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4431|4431]]).
  * Temperature when measured:
 * Observations:

=== Bottom filter ===
 * '''Range:'''
  * '''LVDT:''' [ -500 , 600 ] µm ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4430|4430]]).
  * '''Stepper motor:''' [ -550,000 , -250,000 ] steps ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4430|4430]]).
  * Temperature when measured:
 * Observations:

=== Other related entries ===
[[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8082|8082]]

== SR3 ==
=== Top filter ===
 * '''Range:'''
  * '''LVDT:''' [ 885 , -1299 ] µm ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=7758|7758]]).
  * '''Stepper motor:''' [ -500,000 ,  1,100,000 ] steps ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=7758|7758]]).
  * Temperature when measured:
 * Observations:

=== Standard Flter ===
 * '''Range:'''
  * '''LVDT:''' [ -2000 , 2000 ]''' '''µm ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4720|4720]]).
  * '''Stepper motor:''' [ -700,000 , 1,100,000 ] steps ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4720|4720]]).
  * Temperature when measured:
 * Observations:

=== Bottom Filter ===
 * '''Range:'''
  * '''LVDT:''' [ -1600 , +1000 ] µm ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4654|4654]]).
  * Stepper motor:  ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4654|4654]]).
  * Temperature when measured:
 * Observations: After pump down I was not able to move the keystone to zero using the fishing rod. It went as high as -265 µm [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8658|8658]].

=== Other related entries ===
 . [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8658|8658]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8135|8135]].

== SRM ==
=== Top Filter ===
([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=7857|7857]])

=== Standard Filter ===
([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4721|4721]])

=== Bottom Filter ===
([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4721|4721]])