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== Quadrants == As viewed looking at the QPD - double check! ||Q4||Q1|| ||Q3||Q2|| == Default OL2EUL Matrix == == Micrometer Function == ||Horizontal|| Vertical||Notes|| ||Points right||Points down||viewed facing QPD|| ||Anticlockwise||Anticlockwise||turn of micrometer knob|| ||Retracts tip||Retracts tip|| || ||Larger numbers||Larger numbers||on micrometer scale|| ||Stage moves with tip||Stage moves with body|| || ||QPD moves left||QPD moves down|| || ||Spot moves to right quadrants||Spot moves to upper quadrants|| || ||Simulates -yaw||Simulates +pitch|| || |
KAGRA VIS Operations Manual - Optical Levers
Info
JGW-T1605788 - Length-Sensing OpLevs for KAGRA, writeup by Simon
JGW-T1503946 - OpLev, writeup by Ettore Majorana of VIRGO
Data
KAGRA/Subgroups/AOS/DCQPDList - Inventory of QPDs for OLs
Quadrants
As viewed looking at the QPD - double check!
Q4 |
Q1 |
Q3 |
Q2 |
Default OL2EUL Matrix
Micrometer Function
Horizontal |
Vertical |
Notes |
Points right |
Points down |
viewed facing QPD |
Anticlockwise |
Anticlockwise |
turn of micrometer knob |
Retracts tip |
Retracts tip |
|
Larger numbers |
Larger numbers |
on micrometer scale |
Stage moves with tip |
Stage moves with body |
|
QPD moves left |
QPD moves down |
|
Spot moves to right quadrants |
Spot moves to upper quadrants |
|
Simulates -yaw |
Simulates +pitch |
|