R&D ON STABILIZATION MBQ: FROM CDR TO TECHNICAL IMPLEMENTATION PHASE K. Artoos, C. Collette **, P....
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Transcript of R&D ON STABILIZATION MBQ: FROM CDR TO TECHNICAL IMPLEMENTATION PHASE K. Artoos, C. Collette **, P....
![Page 1: R&D ON STABILIZATION MBQ: FROM CDR TO TECHNICAL IMPLEMENTATION PHASE K. Artoos, C. Collette **, P. Fernandez Carmona, M. Guinchard, C. Hauviller, S. Janssens.](https://reader036.fdocuments.us/reader036/viewer/2022081603/56649f1f5503460f94c375c4/html5/thumbnails/1.jpg)
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R&D ON STABILIZATION MBQ: FROM CDR TO TECHNICAL
IMPLEMENTATION PHASE
K. Artoos, C. Collette**, P. Fernandez Carmona, M. Guinchard, C. Hauviller, S. Janssens*, A. Kuzmin, R. Leuxe, M. Esposito.
The research leading to these results has received funding from the European Commission under the FP7 Research Infrastructures project EuCARD
* PhD student ULB-CERN * * Associate ULB
K. Artoos, ACE 6, Geneva 2nd February 2011
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Collaboration
K. Artoos, ACE 6, Geneva 2nd February 2011
CERN is collaborating on the stabilization of accelerator components with the following institutes:
Active Structures LaboratoryDepartment of Mechanical Engineering and RoboticsUniversité Libre de Bruxelles (ULB), Belgium
Institut de Recherche sur les lois Fondamentales de l'UniversCEA (Commissariat à l'énergy atomique) Saclay, France
Laboratories in Annecy (France) working on VIbration STAbilisation
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Outline
K. Artoos, ACE 6, Geneva 2nd February 2011
Requirements (reminder) Strategy stabilisation MBQ Status and results for feasibility
demonstration CDR Strategy after CDR + some first results!
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Requirements
Stability (magnetic axis):
Nano-positioning
3992 CLIC Main Beam Quadrupoles:Four types :Mass: ~ 100 to 400 kgLength: 500 to 2000 mm
K. Artoos, ACE 6, Geneva 2nd February 2011
Type 4: 2m, 400 kgType 1: 0.5 m, 100 kg
A. Samoshkin
FF MBQ
Vert. 0.2 nm> 4Hz
1.5 nm > 1 Hz
Lat. 5 nm > 4 Hz
5 nm >1 Hz
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Characterisation vibration sources
K. Artoos, ACE 6, Geneva 2nd February 2011
Running accelerator in deep tunnel comparable to LHC: - Between 2 and 5 nm ground vertical integrated R.M.S. Displacement- Amplitude to be reduced by factor 4-5 in frequency range 1-20 Hz-Above 20 Hz contribution to integrated RMS is small- Environment should be part of strategy
vertical vertical
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Other requirements
K. Artoos, ACE 6, Geneva 2nd February 2011
Available spaceIntegration in two beam module620 mm beam height, width~470 mmAccelerator environment- High radiation - Stray magnetic field
A. Samoshkin
Stiffness-Robustness - Applied forces (water cooling, vacuum pipes,…- Compatibility alignment- Uncertainty -Transportability
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Additional objectives MBQ
K. Artoos, ACE 6, Geneva 2nd February 2011
« Nano-positioning» proposalModify position quadrupole in between pulses (~ 5 ms)
Range ± 5 μm, increments 10 to 50 nm, precision ± 1nm
• In addition/ alternative dipole correctors• Might increases time to next realignment with cams
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Comparison existing s.o.a. active stabilisation strategies
2009: Lithography WO 084,966 A1
IR on payload
k~0.01 N/µm
2007: US 2007/003,5074 A1
IR on the ground
k~0.01 N/µm
C. ColletteS. Janssens
1994: Proc. SPIE vol. 2264
Two stages
k~1 N/µm
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K. Artoos, ACE 6, Geneva 2nd February 2011
C. ColletteS. Janssens
(Without noise curves)
Comparison existing S.O.A. stabilisation strategies
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Comparison Active Isolation
Very Soft (1 Hz) Stiff (200 Hz)
• Pneumatic actuator• Hydraulic actuator
+ Broadband isolation- Stiffness too low- Noisy
• Electromagnetic in parallel with a spring• Piezo actuator in series with soft element (rubber)
+ Passive isolation at high freq.+ Stable- Low dynamic stiffness- Low compatibility with alignment and AE
Soft (20 Hz)
• Piezoelectric actuator in series with stiff element (flexible joint)
+ Extremely robust to forces+ Fully compatible with AE+ Comply with requirements- Noise transmission- Strong coupling
K. Artoos, ACE 6, Geneva 2nd February 2011C. Collette
COMPARISON
TNO+AIMSk~0.01 N/µm
TMC k~1 N/µm Piezo k~100-500 N/µm
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4 steps toward demonstrationstiff stabilisation support
2010 : 4 steps toward demonstration on MBQ type 4 (+ type 1):
1. Stabilisation 1 d.o.f. with small weight(“membrane”)
2. Stabilisation 1 d.o.f. with type 1 weight(“tripod”)
3. Stabilisation 2 d.o.f. with type 1 weight (“quadruped”)
4. Stabilisation of type 4 (and type 1)CLIC MB quadrupole proto type
K. Artoos, ACE 6, Geneva 2nd February 2011
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4 steps toward demonstration stiff stabilisation support
2010 : 4 steps toward demonstration on MBQ type 4 (+ type 1):
1. Stabilisation 1 d.o.f. with small weight(“membrane”)
2. Stabilisation 1 d.o.f. with type 1 weight(“tripod”)
3. Stabilisation 2 d.o.f. with type 1 weight (“quadruped”)
4. Stabilisation of type 4 (and type 1)CLIC MB quadrupole proto type
K. Artoos, ACE 6, Geneva 2nd February 2011
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Step 1: One d.o.f. scaled set-up
K. Artoos, ACE 6, Geneva 2nd February 2011
• System (sensor) modelled and fully understood•Controller improved• Real time behaviour improved• Improved cabling and power supply have decreased the noise levelNoise study P. Fernandez Carmona
Since last ACE :
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Experimental results
Result: 0.6 nm at 1 Hz from 2.2 nm
day: 1.6 nm from 6.4 nm
0.44 nm at 4 Hz
Objectives reached
K. Artoos, ACE 6, Geneva 2nd February 2011
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4 steps toward demonstration stiff stabilisation support
2010 : 4 steps toward demonstration on MBQ type 4 (+ type 1):
1. Stabilisation 1 d.o.f. with small weight(“membrane”)
2. Stabilisation 1 d.o.f. with type 1 weight(“tripod”)
3. Stabilisation 2 d.o.f. with type 1 weight (“Quadruped”)
4. Stabilisation of type 4 (and type 1)CLIC MB quadrupole proto type
K. Artoos, ACE 6, Geneva 2nd February 2011
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Strategy Support
K. Artoos, ACE 6, Geneva 2nd February 2011
• Stiff structure• At least four d.o.f.• Precise motion• Repeatability• 0.1 nm resolution vertically
Parallel structure
Stiff piezo actuators
Flexural hinges
Sensors : Seismometers “to get started”
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K. Artoos, ACE 6, Geneva 2nd February 2011
Structural stiffness
Induced stresses in piezo
Inclination Resolution, structure stiffness, forces
Number # D.O.F. , COSTResonant frequencySolution 4 types
Strategy Support
Block longitudinalBlock roll
X-Y flexural guide
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Step 3: 2 d.o.f. with type 1 mass
Objectives:•Validate the strategy and controller in 2 d.o.f. Type 1• Validate flexural hinge design• Validate Mounting and assembly issues• Validate nano positioning in 2 d.o.f.
K. Artoos, ACE 6, Geneva 2nd February 2011
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Stabilization in 2 d.o.f.
Lateral stabilization
Vertical stabilization
Will be improved with guide
K. Artoos, ACE 6, Geneva 2nd February 2011
m
Can be improved still.
0.9 nm at 1 Hz
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Positioning in 2 d.o.f.
Horizontal motion
Vertical motion
Measured in legsMeasured x-y capacitive
10 nm
K. Artoos, ACE 6, Geneva 2nd February 2011
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Concept drawingType 4
Alignment stage: H. Mainaud Durand
R. Leuxe
• Stiff intermediate girder between alignment and stabilisation• Lockable in longitudinal direction (transport)• Introduce x-y nanometrology• Optical encoders would allow a hardware zero position
K. Artoos, ACE 6, Geneva 2nd February 2011
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IWLC2010 Geneva 2010 A.Jeremie22
Mid-lower magnet
1355mm
Elastomeric strips for guidance
Piezoelectric actuator below its micrometric screw
Lower electrode of the capacitive
sensor
Fine adjustments for capacitive sensor (tilt and
distance)
V-support for the magnet
2mV=0.1nm
Next step: add feedback
240mm
Lavista development Status: changed to stiff support option
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Conclusions CDR for MBQ
K. Artoos, ACE 6, Geneva 2nd February 2011
With STRATEGY STIFF stabilisation support based on parallel piezo actuator structure:
We DEMONSTRATED in a model and on test benches the technical feasibility to stabilise better than the required level
at 1Hz in two d.o.f., from levels that were characterised in a running accelerator in a deep tunnel (LHC). This with commercially available components.
We demonstrated nano positioning in two d.o.f. We have a concept design of the stabilisation support based on
the validated actuator pair with flexural hinges. Compatible with module requirements and alignment and robust
against external forces We did not yet demonstrate this in an accelerator environment We did not yet demonstrate this with a complete system (magnet,
alignment,...)
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Deliverables and R&D
Main deliverables (Eucard):
Continued R&D:
Type 4 mock-up 09/2011
Type 1 and 4 Test modules/CLEX 2012Implementation CDR baseline
• Increased performance: Interaction with BBF, stability and ratio increase RMS displacement, sensor development
• Compatibility components accelerator environment: sensor development, research + qualification
• COST reduction: e.g. Electronics, number of actuators, x-y sensors
• Overall system analysis:, sensitivity to change of requirements, again interaction with integrated luminosity simulations, characterisation components and vibrations sources, compliance• Pre-Industrialised, operational system: Reliability, distributed control system, series production Mature technology
5 points summary:
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Sensor R&D
K. Artoos, ACE 6, Geneva 2nd February 2011
• Modify Standard seismometer• Use mechanics• Implemented other displacement
sensors• Development of a new sensor
•Increase performanceIncrease RMS ratioIncrease resolution
• Adapt to Daniel’s “Favorite Transfer Function”• Decrease Costs•Make compatible with Accelerator environment
• Investigate Eentec Electro chemical seismometer
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Interaction with BBF team
Guidelines for stabilization team:• No amplification at the micro seismic peak
• Amplification around 75 Hz has to be kept small
Slide courtesy of J. Pfingstner and J. SnuverinkBeam physics meeting 12-01-2011
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Feedforward Feedback
K. Artoos, ACE 6, Geneva 2nd February 2011
• Reduced peak at low frequency• Reduced peak at high frequency
ÞTested by J. Snuverink and J. Pfingstner
Request to increase stabilization to higher frequency S. Janssens
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Analog control research
K. Artoos, ACE 6, Geneva 2nd February 2011
1,17 nm
4,5 nm
[m]
[Hz]
GND
1500uF
C3
Offset: 0Amplitude: 100m
Frequency: 30
Vin+VSIN
Power+
Power-
6V
V1
-6VV2
GND
160R5
160
R4
24
R1
GND
GND
1500uF
C9
665R6
665R7
GND
GND
25
Rgen+
Offset: 0
Amplitude: 1mFrequency: 30
Vin-VSIN
25Rgen-
GND
+IN4
-VS
1
-IN5
RG
7
VOUT8
VR
EF
26
VR
EF
13
+V
S2
UdiffAD8230YRZ
GND
10kRf
100Rg
0.1uFCclean1
0.1uFCclean2
10
R1310
R11
80Rcomp1
20Rcomp2
470uF
C12
500Rfilt
100nFCfilt
24Rcomp0
GND
GND
+
C?
0.1
uF +
C?
10
uF
+
C?
0.1
uF +
C?
10
uF
GNDGND
GND GND
P?
500
2
3
4
6
1
5
UampLMV791MK
2
3
4
6
1
5
UhpLMV791MK
2
3
4
6
1
5 Ulag2LMV791MK
3
21
84
UintALMP2022MA
5
67
84 UcompB
LMP2022MA
GND1
IN3
OUT2
OUT4
IC2
REG1117-2.85
P?
100
P?
100
GND
10
R1310
R11
20Rcomp2
470uF
C12
2
3
4
6
1
5 Ulag1LMV791MK
P?
100
P?
100
36
Rcomp2
36
Rcomp2
GND
VCC7
OUT6
CMPEN1
VFB2
RT/CT4
ISEN3
VREF8
GND5
IC4
UCC284-5
IN3
OUT5
EN2
7FB/NC GND
1
IN4
OUT6
PG8
IC1
TPS76550
IN1
GND2
OUT5
EN3
NR4
IC3
TPS72325
GND
GND
GNDGND
GND
+
C?
2.2
uF
+
C?
2.2
uF
+
C?
10
nF
GND
+
C?
1u
F +
C?
15
nF
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+
C?
0.1
uF
+
C?
0.1
uF
GND
0.3R1
250k
R1 RMS@ 1Hz Measurement in ISR Measured Transfer function + Low noise+ Low cost+ Small volume+ Lower phase delay+ Less sensitive to single events+ Low power consumption- Limited flexibility
P. Fernandez-Carmona
P. Fernandez-Carmona
Membrane
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Analog control research
K. Artoos, ACE 6, Geneva 2nd February 2011
Power ≈20mWCost ≈100CHFVolume ≈0.15 l
Power ≈80WCost ≈15000CHFVolume ≈13 l
P. Fernandez-Carmona
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Conclusions technical implementation
K. Artoos, ACE 6, Geneva 2nd February 2011
Short term deliverables are defined in EUCARD.
Medium term R&D strategy summarized in 5 points.
Technical implementation after CDR has already started with regularly new results.
Integration with BBF and Luminosity simulations is now systematic.
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Publications
COLLETTE C., ARTOOS K., KUZMIN A., JANSSENS S., SYLTE M., GUINCHARD M. and HAUVILLER C., Active quadrupole stabilization for future linear particle colliders, Nuclear instruments and methods in physics research section A, vol.621 (1-3) pp.71-78 (2010).
COLLETTE C., ARTOOS K., GUINCHARD M. and HAUVILLER C., Seismic response of linear accelerators, Physical reviews special topics – accelerators and beams vol.13 pp. 072801 (2010).
FERNANDEZ-CARMONA P., COLLETTE C., JANSSENS S., ARTOOS K., GUINCHARD M., KUZMIN A., SLAATHAUG A., HAUVILLER C., Study of the electronics architecture for the mechanical stabilization of the quadrupoles of the CLIC linear accelerator, Journal of Physics : Conference series (Published 2010).
ARTOOS K., COLLETTE C., FERNANDEZ-CARMONA P., GUINCHARD M., HAUVILLER C., JANSSENS S. KUZMIN A., LACKNER F., LEUXE R. and SLAATHAUG A., Stabilization and fine positioning to the nanometre level of the CLIC Main beam quadrupoles, accepted in Physical reviews special topics – accelerators and beams (submitted in 2010).
In preparation: COLLETTE C., FERNANDEZ-CARMONA P., JANSSENS S., ARTOOS K., GUINCHARD M., HAUVILLER C., Inertial sensors for low frequency seismic vibration measurement, Bulletin of the Seismological Society of America
submitted in 2011: COLLETTE C., FERNANDEZ-CARMONA P., JANSSENS S., ARTOOS K., GUINCHARD M., HAUVILLER C., Nano-Motion Control of Heavy Quadrupoles for Future Particle Colliders: An Experimental Validation, Nuclear instruments and methods in physics research section A
K. Artoos, ACE 6, Geneva 2nd February 2011
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Publications
ARTOOS K., COLLETTE C., GUINCHARD M., JANSSENS S., KUZMIN A. and HAUVILLER C., Compatibility and integration of a CLIC quadrupole nano-stabilization and positioning system in a large accelerator environment, IEEE International Particle Accelerator Conference IPAC10, 23-25 May 2010 (Kyoto, Japan).
ARTOOS K., COLLETTE C., GUINCHARD M., JANSSENS S., LACKNER F. and HAUVILLER C., Stabilisation and fine positioning to the nanometer level of the CLIC Main beam quadrupoles, IEEE International Particle Accelerator Conference IPAC10, 23-25 May 2010 (Kyoto, Japan).
COLLETTE C., ARTOOS K., JANSSENS S. and HAUVILLER C., Hard mounts for quadrupole nano-positioning in a linear collider, 12th International Conference on New Actuators ACTUATOR2010, 14-16 May 2010 (Bremen, Germany).
COLLETTE C., JANSSENS S., ARTOOS K. and HAUVILLER C., Active vibration isolation of high precision machine (keynote lecture), 6th International Conference on Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation (MEDSI 2010), 14 July 2010 (Oxford, United Kingdom).
COLLETTE C., JANSSENS S., ARTOOS K., GUINCHARD M. and HAUVILLER C., CLIC quadrupole stabilization and nano-positioning, International Conference on Noise and Vibration Engineering (ISMA2010), 20-22 September 2010 (Leuven, Belgique).
K. Artoos, ACE 6, Geneva 2nd February 2011
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Publications
COLLETTE C., JANSSENS S., ARTOOS K. and HAUVILLER C., Active vibration isolation of high precision machine (keynote lecture), 6th International Conference on Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation (MEDSI 2010), 14 July 2010 (Oxford, United Kingdom).
COLLETTE C., JANSSENS S., ARTOOS K., GUINCHARD M. and HAUVILLER C., CLIC quadrupole stabilization and nano-positioning, International Conference on Noise and Vibration Engineering (ISMA2010), 20-22 September 2010 (Leuven, Belgique).
JANSSENS S., COLLETTE C., ARTOOS K., GUINCHARD M. and HAUVILLER C., A sensitiviy analysis for the stabilization of the CLIC main beam quadrupoles, Conference on Uncertainty in Structural Dynamics, 20-22 September 2010 (Leuven, Belgique).
FERNANDEZ-CARMONA P., COLLETTE C., JANSSENS S., ARTOOS K., GUINCHARD M., KUZMIN A., SLAATHAUG A., HAUVILLER C., Study of the electronics architecture for the mechanical stabilization of the quadrupoles of the CLIC linear accelerator, Topical Workshop on Electronics for Particle Physics TWEPP 2010, 20-24 September 2010 (Aachen, Germany).
K. Artoos, ACE 6, Geneva 2nd February 2011
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Spares
K. Artoos, ACE 6, Geneva 2nd February 2011
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Deliverables
2009 -2010 R&D Stabilisation CLICCDR Feasibility demonstration CLIC MBQ stabilisationStabilisation Working Group
APRIL 2009-2013
EUCARD WP 9.3.1 and 9.3.2
2009-2010 Contribution exceptionelle de la France au CERN (EDMS 1009438)WP 4.7 and 4.8LAPP (calculs et analyse vibratoire)+ CEA (interferometre) Evaluation performances 2011
~ DONE!
1. Mock-up type 4 (9/2011)
3. Test module Type 1(10/’11) + 4. type 4 (05/’12)
5. CLEX: Type 1 + 6. Type 4 (12/’12)
Experiment at CEBAF (2013)
2. Characterisation of noise/vibration sources in an accelerator (03/’11)
Final EUCARD reports 03/2013
T1 concept drawing Module CDR
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Deliverables (conditions)
• 7. Further increase performance: stability and ratio reduction RMS displacement. • 8. Compatibility components (sensor/actuator/ electronics) with accelerator environment: research + qualification•9. Compatibility with Alignment + external forces• Calibrate + characterise sensors by comparison + independent measurement method• Demonstrate stability with independent method• 11. For operation in test modules and CLEX: a controller with external communication
• 12. State of the art report on sensor development and performances (updated yearly basis)• 13. State of the art report on actuator development and performances (updated yearly basis)• 14. Overal system analysis: stability, bandwidth, sensitivity to change of specifications, interaction with BBF• 15. Integration in the module design• 16. Faults analysis and tolerance of technical system, machine protection
Remark: CDR is the baseline during technical implementation... but with some flexibility without dispersing our activities
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K. Artoos, ACE 6, Geneva 2nd February 2011
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2011
X-y guide prototype
Seismic reference mass/ seismometer improvement
Q1 Q2 Q3 Q4
Construction T4 mock-up
Testing T4 mock-up
Construction T1 Test module
Lavista development
T4 vibration analysis
T1 & T4 assembly, testing, water cooling
T1 vibration analysis
T0 vibration analysis
Characterisation vibration sources and propagation
X-y relative displ. measurements
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•Reduction in performance due to latency in feedback systemÞ Long cables = latency problem => Localized control
Latency Research
K. Artoos, ACE 6, Geneva 2nd February 2011
Latency research for stabilization (Digital system)Goal: “Evaluate the impact of the latency on stabilization performance”
Controller: Experimental validation with NI PXI 8106 RT + M series acquisition with a 2D controller
“Study of the electronics architecture for the mechanical stabilisation of the quadrupoles of the CLIC linear accelerator” P. Fernandez 2010_JINST_5_C11014
P. Fernandez-Carmona
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K. Artoos, ACE 6, Geneva 2nd February 2011
Additional objectives
NANOMETROLOGY and introduction REFERENCE positionMeasurement of the x-y displacement with respect to intermediate platform (fiducials):
• Instrumentation in actuator legs• Capacitive gauges in x-y guide• Optical linear encoders with gratings in x-y guide (Introduction hardware reference position)
Nanometre resolution
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Soft support :(i) Improves the isolation(ii) Make the payload more sensitive to external forces Fa
Passive Isolation Strategies
K. Artoos, ACE 6, Geneva 2nd February 2011
Effect of support stiffness [m/N]
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Active Isolation Strategies
Add virtual mass(e.g. space applications)
Feedback control principle
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Sky-hook damper (D.C. Karnopp, 1969)
Active Isolation Strategies
Feedback control principle
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Position feedback would be great ! How to measure it ?
Active Isolation Strategies
Feedback control principle
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Passive vs Active vibration isolation
Only active isolation can provide both:
- Isolation in a broad frequency range between 1Hz and 20 Hz
- Dynamic stiffness for robustness to disturbances and compatibility with alignment
Conditions:
- Measure the vibrations
- Process the signal in real time
- Apply small dynamic forces
K. Artoos, ACE 6, Geneva 2nd February 2011
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Error budgeting
No significant difference in the noise transmissionK. Artoos, ACE 6, Geneva 2nd February 2011 Noise reduction
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Strong coupling
K. Artoos, ACE 6, Geneva 2nd February 2011
Stability Performances
Objective
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Stability of slender quadrupoles
C. Collette et al, Nucl. Instr. meth. in phys. Res. A, vol.621 (1-3) pp.71-78 (2010).
K. Artoos, ACE 6, Geneva 2nd February 2011
Complete matlab program:
- Simulate vibration isolation- Simulate positioning- Simulate mechanics (x-y guide)
C. Collette