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'''IM-stage'''

[[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4846|klog#4846]]

|| number# || for which? || linear range [cnt] || calibration factor [um/cnt] || noise level at 10 Hz ||
|| || || || || ||
|| No#53 || IM-V1 || 0.078991 || 1600-12500 || ||
|| No#54 || IM-V2 || 0.079014 || 1480-12600 || ||
|| No#55 || IM-V3 || 0.083248 || 1500-12000 || ||
|| || || || || ||
|| No#56 || IM-H1 || 0.074347 || 1390-14200 || ||
|| No#57 || IM-H2 || 0.070756 || 1370-14700 || ||
|| No#58 || IM-H3 || 0.088711 ||1450-11100 || ||


{{attachment:SR3-IM-V1||width=33%,align="left"}}
{{attachment:SR3-IM-V1||width=33%,align="center"}}
{{attachment:SR3-IM-V1||width=33%,align="right"}}

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 * GAS optimal load '''without their caps'''
|| GAS name || optimal frequency || optimal load || optimal height of the keystone || LVDT linear range? || Fishing rod range? || Note ||
|| || || || || || || ||
|| TF || || || || || || ||
|| SF-B2-6 || 0.32 Hz || 166.40 kg || 67.8 mm || 64[mm] to 66.5[mm] || 63.5[mm] to 67.5[mm] || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4720|k#4720]] ||
|| BF-No7 || 0.39 Hz || 53.17 kg || 64.9 || 64[mm] to 66.5[mm] || 64.2[mm] to 66.5[mm] || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4654|k#4654]] ||

[[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4650|k#4650]]
||'''Sensor'''||'''Efficiency [um/cnt]'''||
|| F0-LVDT ||<)> ||
|| SF-LVDT ||<)> 0.08845 ||
|| BF-LVDT ||<)> 0.05497 ||
/* {{attachment:calibLVDT_ETMX_IPH1_20171012.png||width=33%,align="left"}} */
/* {{attachment:calibLVDT_ETMX_IPH2_20171012.png||width=33%,align="center"}} */
/* {{attachment:calibLVDT_ETMX_IPH3_20171012.png||width=33%,align="right"}} */
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== actuation efficiency == == actuation polarization ==
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Polarity is determined so that an +offset at the COILOUTF applies +yaw force in each actuator.
 * COIL H1: negative
 * COIL H2: negative
 * COIL H3: positive
'''TM-stage'''
|| COIL || sign ||
|| H1 || ||
|| H2 || ||
|| H3 || ||
|| H4 || ||
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'''IM-stage'''
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|| TM-H1 || ||
|| TM-H2 || ||
|| TM-H3 || ||
|| TM-H4 || ||
|| H1 || ||
|| H2 || ||
|| H3 || ||
||    || ||
|| V1 || ||
|| V2 || ||
|| V3 || ||
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'''IP-stage'''
|| COIL || sign ||
|| H1 || ||
|| H2 || ||
|| H3 || ||
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== actuation efficiency ==
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=== Stepper motor === == Stepper motor ==

SR3 suspension information


position

FARO measurement

GAS default height (LVDT readout)

  • BF GAS LVDTIN:
  • F1 GAS LVDTIN:
  • F0 GAS LVDTIN:


suspension parameters

resonant frequencies

position of the COM

calculated from the resonant frequencies.


sensor & actuator parameters

Oplev calibration

OSEM calibration

IM-stage

klog#4846

number#

for which?

linear range [cnt]

calibration factor [um/cnt]

noise level at 10 Hz

No#53

IM-V1

0.078991

1600-12500

No#54

IM-V2

0.079014

1480-12600

No#55

IM-V3

0.083248

1500-12000

No#56

IM-H1

0.074347

1390-14200

No#57

IM-H2

0.070756

1370-14700

No#58

IM-H3

0.088711

1450-11100

SR3-IM-V1 SR3-IM-V1 SR3-IM-V1

GAS-LVDT calibration

  • GAS optimal load without their caps

GAS name

optimal frequency

optimal load

optimal height of the keystone

LVDT linear range?

Fishing rod range?

Note

TF

SF-B2-6

0.32 Hz

166.40 kg

67.8 mm

64[mm] to 66.5[mm]

63.5[mm] to 67.5[mm]

k#4720

BF-No7

0.39 Hz

53.17 kg

64.9

64[mm] to 66.5[mm]

64.2[mm] to 66.5[mm]

k#4654

k#4650

Sensor

Efficiency [um/cnt]

F0-LVDT

SF-LVDT

0.08845

BF-LVDT

0.05497

IP-LVDT calibration

Sensor

Efficiency [um/cnt]

LVDT H1

LVDT H2

LVDT H3

Geophone calibration

Frequency response

Geophone's frequency response to the ground velocity:

  • Ge: Generator constant [V/(m/s)]
  • η: Intrinsic damping ratio
  • ω0: Resonant angular frequency [rad/s]

Sensor

S/N

Generator constant (nominal) [V/(m/s)]

Damping ratio (estimated)

Resonant frequency [Hz]

GEO H1

#

GEO H2

#

GEO H3

#

Noise

Sensor

Noise [m/rtHz] @ 0.1 Hz

Noise [m/rtHz] @ 10 Hz

GEO H1

GEO H2

GEO H3

Calibration

  • Converted displacement [um] = 3.052 x 10-4 [V/cnt] / HGEO(ω) / (gainPreamp) x (DC cutoff) x 1/s (m/(m/s)) x 106

actuation polarization

TM-stage

COIL

sign

H1

H2

H3

H4

IM-stage

COIL

sign

H1

H2

H3

V1

V2

V3

IP-stage

COIL

sign

H1

H2

H3

Diagonalization matrix

  • ACC2EUL

H1

H2

H3

To:

**

**

**

  • LVDT2EUL

H1

H2

H3

To:

Long.

Trans.

Yaw

  • EUL2COIL

Long.

Trans.

Yaw

To:

H1

H2

H3

actuation efficiency

Stepper motor

See also: Stepper motor setup

Epics channel name: K1:STEPPER_***_IP

Driver IP address: 10.68.150.**

Motor 0

Motor 1

Motor 2

Motor 3

Motor 4

Motor 5

<blank>

<blank>


Related Link

KAGRA/Subgroups/VIS/TypeB/SR3detail (last edited 2022-03-08 13:37:26 by hiromi.yasui)