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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 ||It's been at its lowest position since the temperature was 25 ºC. We set the keystone to 488 µm ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8125|8125]]). ||[[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8125|8125]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8645|8645]],|| ||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 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]]). |
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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 ([[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]]). |
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=== 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:''' After pump down it was not possible to move the keystone to zero using the fishing rod. It went as high as -750 µm at the time ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8135|8135]]). === 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:'''This fishing rod of not working at all ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8135|8135]]). It's a real shame because it had a large range of 4 mm total. === Bottom Filter === * '''Range:''' * '''LVDT:''' [ -1600 , +1000 ] µm ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4654|4654]]). * Stepper motor: [ -200,000 , 250,000 ] steps ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4654|4654]]). * Temperature when measured: * '''Observations:''' * After pump down it was not possible to move the keystone to zero using the fishing rod. It went as high as -265 µm at the time [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8658|8658]]. * The number of steps for the stepper motor seem relatively small. In principle there's nothing wrong with this but let's point this out. === 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 === * '''Range:''' * '''LVDT:''' [ -865 , 626 ] µm ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=7857|7857]]). * '''Stepper motor:''' [ -1,600,000 , 1,600,00 ] steps ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=7857|7857]]). * Temperature when measured: * '''Observations:''' === Standard Filter === * '''Range:''' * '''LVDT:''' [ ] µm ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4721|4721]]) . * Stepper motor: [ ] steps ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4721|4721]]) . * Temperature when measured: * '''Observations:''' === Bottom Filter === ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4721|4721]]) * '''Range:''' * '''LVDT:''' [ ] µm . * Stepper motor: [ ] steps . * Temperature when measured: * '''Observations:''' |
Describe KAGRA/Subgroups/VIS/OpsManual/FishingRods here.
This page describes the status of the fishing rods.
Beam splitter
Top filter
Range:
Observations:
Standard Filter
Range:
Observations:
Bottom filter
Range:
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:
- Observations:
Stardard filter
Range:
- Observations:
Bottom filter
Range:
- Observations:
Other related entries
SR3
Top filter
Range:
Observations: After pump down it was not possible to move the keystone to zero using the fishing rod. It went as high as -750 µm at the time (8135).
Standard Flter
Range:
Observations:This fishing rod of not working at all (8135). It's a real shame because it had a large range of 4 mm total.
Bottom Filter
Range:
Observations:
After pump down it was not possible to move the keystone to zero using the fishing rod. It went as high as -265 µm at the time 8658.
- The number of steps for the stepper motor seem relatively small. In principle there's nothing wrong with this but let's point this out.
Other related entries
SRM
Top Filter
Range:
Observations:
Standard Filter
Range:
Observations:
Bottom Filter
(4721)
Range:
LVDT: [ ] µm .
- Stepper motor: [ ] steps .
- Temperature when measured:
Observations: