Differences between revisions 34 and 35
⇤ ← Revision 34 as of 2019-11-13 15:00:37 →
Size: 2787
Editor: fabian.arellano
Comment:
← Revision 35 as of 2019-11-13 15:07:28 → ⇥
Size: 2981
Editor: fabian.arellano
Comment:
Deletions are marked like this. Additions are marked like this.
Line 12: Line 12:
  * 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]]).		   * 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 16: Line 16:
 * '''Range'''  * '''Range:'''
Line 20: Line 20:
 * '''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]]).  * '''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 23: Line 25:
 * 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?		  * '''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 didn't seem to have any problems before but we haven't tried to use it at every temperature condition we've had.

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

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)