⇤ ← Revision 1 as of 2018-04-29 11:18:26
2236
Comment:
|
3365
|
Deletions are marked like this. | Additions are marked like this. |
Line 34: | Line 34: |
|| LVDT H1 ||<)> -0.258 || || LVDT H2 ||<)> -0.252 || || LVDT H3 ||<)> -0.233 || |
|| LVDT H1 ||<)> || || LVDT H2 ||<)> || || LVDT H3 ||<)> || |
Line 75: | Line 75: |
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 || COIL || sign || || TM-H1 || || || TM-H2 || || || TM-H3 || || || TM-H4 || || === Diagonalization matrix === * ACC2EUL ||'''H1'''||'''H2'''||'''H3'''||'''To:'''|| || ** || || || || || ** || || || || || ** || || || || * LVDT2EUL ||'''H1'''||'''H2'''||'''H3'''||'''To:'''|| || || || ||''Long.''|| || || || ||''Trans.''|| || || || ||''Yaw'' || * EUL2COIL ||'''Long.'''||'''Trans.'''||'''Yaw'''||'''To:'''|| || || || ||''H1''|| || || || ||''H2''|| || || || ||''H3''|| === Stepper motor === ''See also:'' [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DGS/Projects/StepperMotor|Stepper motor setup]] ||<:-6> ''Epics channel name: K1:STEPPER_***_IP'' || ||<:-6> ''Driver IP address: 10.68.150.**'' || ||'''Motor 0'''||'''Motor 1'''||'''Motor 2'''||'''Motor 3'''||'''Motor 4'''||'''Motor 5'''|| || || || || ||''<blank>''||''<blank>''|| |
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
GAS-LVDT calibration
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 efficiency
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
COIL |
sign |
TM-H1 |
|
TM-H2 |
|
TM-H3 |
|
TM-H4 |
|
Diagonalization matrix
- ACC2EUL
H1 |
H2 |
H3 |
To: |
** |
|
|
|
** |
|
|
|
** |
|
|
|
- LVDT2EUL
H1 |
H2 |
H3 |
To: |
|
|
|
Long. |
|
|
|
Trans. |
|
|
|
Yaw |
- EUL2COIL
Long. |
Trans. |
Yaw |
To: |
|
|
|
H1 |
|
|
|
H2 |
|
|
|
H3 |
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> |