|
Size: 2195
Comment:
|
Size: 2410
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 18: | Line 18: |
| * coil bobbin [Takahashi-san] | * Coil bobbin [Takahashi-san] |
| Line 20: | Line 20: |
| * coil winding [Kuwahara-san, and Ushiba-san] * coil wires from the bobbin to Dsub connector were too short(20cm). The length must be 40cm or more. |
* Coil winding [Kuwahara-san, and Ushiba-san] * Coil wires from the bobbin to Dsub connector were too short(20cm). The length must be 40cm or more. |
| Line 26: | Line 26: |
| * mirror container [Tatsumi-san] | * Mirror container [Tatsumi-san] |
| Line 28: | Line 28: |
| * magnets for dummy mirror (4 ; 2-phi-L-5mm Nd magnets) [Tomaru, Yamamoto] | * Magnets for dummy mirror (4 ; 2-phi-L-5mm Nd magnets) [Tomaru, Yamamoto] |
| Line 30: | Line 30: |
| * some screws in replace with Cu screws [Ohishi] | * Screws in replace with Cu screws [Ohishi] |
| Line 32: | Line 32: |
| ==== pico-motors and PZTs ==== | ==== Pico-motors and PZTs ==== |
| Line 35: | Line 35: |
| ==== coil driver ==== | ==== Coil driver ==== |
| Line 37: | Line 37: |
| ==== cables ==== | ==== Cables ==== |
| Line 39: | Line 39: |
| ==== Assembling [Tomaru, Ohishi, Yamamoto] ==== | ==== Assembling [Tomaru-san, Ohishi, Yamamoto-san] ==== |
| Line 47: | Line 47: |
| ==== Transportation to the End ==== | ==== Transportation to the End [Prof. Kimura, Sawada-san, Tomaru-san(KEK),]==== KEK |
| Line 49: | Line 50: |
| ==== Mirrors ==== Two TAMA PRM mirrors (with about 50% and 90% reflectivities each, resultant contrast becomes 96%) were delivered to Kamioka on 12th Feb. |
iKAGRA ETM suspension preparation log
Schedule
- 12th Jan- (2 weeks) Disassembling, Washing, and transportation
- 25th Jan - (2 weeks) Assembling and Test Hanging with an Al dummy mirror
- 7th Feb- (1 week) coil winding, measurement of transfer function, transportation to the End area and installation test
- 15th Feb- (1 week)installation
Disassembling at ATC Mitaka [Ohishi] (12th-19th Jan.)
- Two nuts stuck. Hirata-san removed them.
- A Cu screw stuck. Hirata-san removed it.
Washing and transportation to Kamioka [Hirata-san]
- The ultra sonic washer at ATC was broken on 20th Jan. A new washer was ordered on 22th(Fri) and arrived at Mitaka on 25th(Mon).
- Eight screws for adjusting the IM holding plate was dirty. Takahashi-san ordered similar screws.
New parts
- Coil bobbin [Takahashi-san]
- Coil winding [Kuwahara-san, and Ushiba-san]
- Coil wires from the bobbin to Dsub connector were too short(20cm). The length must be 40cm or more.
- At the end of coil wires, D-sub pins are swaged. We have run short of pins and waiting for delivery on 29th Feb.
- Peeling off the coating of wires longer than the length of those pins make the wire broken easily.
- D-sub fixture plates [Takahashi-san]
- M3 holes were drilled to phi3.2 holes.
- Mirror container [Tatsumi-san]
- Magnets for dummy mirror (4 ; 2-phi-L-5mm Nd magnets) [Tomaru, Yamamoto]
- Screws in replace with Cu screws [Ohishi] [problem] replaced all Cu screws to stainless. Magnetism problem was indicated.
Pico-motors and PZTs
- We have 4 pico-motors except for x-axis (the direction of the light ) y, z, pitch, yaw
Coil driver
- We use KAGRA coil driver; we need to cheek its performance.
Cables
Assembling [Tomaru-san, Ohishi, Yamamoto-san]
- On 21th, suspension frame, security frame, xy stages completed
Hanging
- Hanging jig preparation
Transfer Function Measurement
==== Transportation to the End [Prof. Kimura, Sawada-san, Tomaru-san(KEK),]====
- KEK
Mirrors
- Two TAMA PRM mirrors (with about 50% and 90% reflectivities each, resultant contrast becomes 96%) were delivered to Kamioka on 12th Feb.