R&D on an Automatic Fiber Filling Machine · R&D on an Automatic Fiber Filling Machine sPHENIX in...
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Fudan University R&D on an Automatic Fiber Filling Machine sPHENIX in Asia meeting 2019/3/26 @ National Central University Fudan University Wanbing He, Yu Hu, Weihu Ma
Transcript of R&D on an Automatic Fiber Filling Machine · R&D on an Automatic Fiber Filling Machine sPHENIX in...
Fudan University
R&D on an Automatic Fiber Filling Machine
sPHENIX in Asia meeting
2019/3/26 @ National Central University
Fudan University
Wanbing He, Yu Hu, Weihu Ma
Fudan University
2019/3/26 sPHENIX in Asia meeting 1
EMCal Block
EMCal Block
6 Screens in one block
2668 fibers through each screen
(5 x 5 cm2)
Filling fiber by handBoringNeed check carefully
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Screen
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The principle of AFMM
LED
Screens
Filbers
Photoresistor
Locating plate
Stepper motor
Holder of screensEvery layer can slide with
each other
Fibers are not in parallel.Move the screen to make the holes vertical
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Screen holders
The top layer is fixed on the main frame
Screen
Locating plate
The locating plate through this gap
locating plates through the gaps
Springs to press Springs
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The bottom layer
Cellphone screen protectorCellphone screen protector
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Rail sliders for the bottom layer
The bottom layer is mounted on a 2D rail sliderThe middle layers are just piled on the bottom layer
Middle layer
Bottom layer
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Assembled
Main frame
Top layer
Bottom layer
Locating plateLocating plate
steppers
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Filling control
3D steppers
Photoresistor
Mechanical pencil
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Assembled
This part will be produced next week
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Steppers
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Control system
Photoresistor
stepper
controller
controller
stepper
stepper
stepper
stepper
Software of control system
By now, we use 3 USB ports to connect to 1 photoresistor and 2 controllersof steppers.
Next step, We will make a single chip microcomputer to control them all
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Software of AFFM
Based on ROOT GUI libs 5 steppers are controlled from this
GUI 1 Photoresistor signal is used Position of screens are monitored
The positions of 4 holes at the cornerare need before filling.
All positons for other holes can be gotby calculation
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Software of AFFM
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Different states can be determined by different strength of the photoresistor signal.
1. Holes are not moved to right position.
2. LED light shoot on the photoresister directly
3. Fiber is filling into the screens
4. The end of a fiber touches the photoresistor
21 3 4
Different steps for filling a fiber
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