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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=11465|11465]]). ||[[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8125|8125]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8645|8645]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=11465|11465]] ||
||Standard Filter || || ||
||Bottom Filter ||So far it's been working, but we haven't tried using it at all every temperature condition.|| ||		 == 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's 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 lower it's not ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8645|8645]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=11465|11465]]).
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=== 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. We set the keystone to 488 µm and couldn't move it down more ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8125|8125]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8645|8645]]).
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=== Bottom filter ===
 * This fishing rod didn't seem to have any problems before but we haven't tried to use it at every temperature condition we've had.
 * Range:''' '''from''' '''-1000 µm to +1800 µm in the LVDT and from -746,000 to +746,000 steps in the stepper motor ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=3280|3280]]).What was the temperature that day?

== SR2 ==
=== Top filter ===
Range: ''' [ -1,700,000 , 1,500,000 ]'''

=== Stardard filter ===
Range: from -750 µm to 1000 µm in the LVDT and from 300,000 to 1,000,00 steps in the stepper motor ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4431|4431]]).

=== Bottom filter ===
Range: from -500 µm to 600 µm in the LVDT and from -550,000 to -250,000 ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4430|4430]]).

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

== SR3 ==
=== Top filter ===
([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=7758|7758]])

=== Standard Flter ===
([[http://p://klog.icrr.u-tokyo.ac.jp/osl/?r=4720|4720]])

=== Bottom Filter ===
([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4654|4654]])

=== 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]])

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's possible to use the fishing rod to set the keystone at nominal position (8125).

    • at 24.5 ºC or lower it's 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. We set the keystone to 488 µm and couldn't move it down more (8125, 8645).

Bottom filter

  • This fishing rod didn't seem to have any problems before but we haven't tried to use it at every temperature condition we've had.

  • Range: from -1000 µm to +1800 µm in the LVDT and from -746,000 to +746,000 steps in the stepper motor (3280).What was the temperature that day?

SR2

Top filter

Range: [ -1,700,000 , 1,500,000 ]

Stardard filter

Range: from -750 µm to 1000 µm in the LVDT and from 300,000 to 1,000,00 steps in the stepper motor (4431).

Bottom filter

Range: from -500 µm to 600 µm in the LVDT and from -550,000 to -250,000 (4430).

8082

SR3

Top filter

(7758)

Standard Flter

(4720)

Bottom Filter

(4654)

SRM

Top Filter

(7857)

Standard Filter

(4721)

Bottom Filter

(4721)

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