= Type-A Tower ETMX Specification =
<<TableOfContents(3)>>
----

== IP ==

{{attachment:IPconfig_ETMXv2.png}}

=== Geophone (GEO) ===

 * Measurements for characterization >>> [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=3893|klog #3893]]

==== Frequency response ====
Geophone's frequency response to the ground velocity:

{{attachment:texclip20171227223533.png||width=350}}

 * 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 || #11 || 282.26 || 0.34  || 1.07  ||
|| GEO H2 || #12 || 282.30 || 0.315 || 1.065 ||
|| GEO H3 || #13 || 286.47 || 0.27  || 1.31  ||

{{attachment:respGEOall20171220.png||width=500}}

==== Noise ====
||'''Sensor'''||'''Noise [m/rtHz] @ 0.1 Hz'''||'''Noise [m/rtHz] @ 10 Hz'''||
|| GEO H1 || 8e-9 || 3e-13 ||
|| GEO H2 || 8e-9 || 3e-13 ||
|| GEO H3 || 1e-8 || 3e-13 ||

{{attachment:psdGEOnoiseVel20171220.png||width=500}} {{attachment:psdGEOnoiseDisp20171220.png||width=500}}

==== Calibration ====

 * Converted displacement [um] = 6.104 x 10^-4^ [V/cnt] / H,,GEO,,(ω) / (gainPreamp) x (DC cutoff) x 1/s (m/(m/s)) x 10^6^

{{attachment:tfmdlETMX_GEOH1calib20180205.png||width=500}}

## !!OBSOLETE!!
## === Accelerometer (ACC) ===
##  
## ||'''Sensor'''||'''Efficiency [(um/s^2)/cnt]'''||
## || ACC H1 (SN7) ||<)> -5.288 ||
## || ACC H2 (SN8) ||<)>  5.830 ||
## || ACC H3 (SN5) ||<)> -5.289 ||
## {{attachment:calibACC_sn7_20171016.png||width=33%,align="left"}}
## {{attachment:calibACC_sn8_20171016.png||width=33%,align="center"}}
## {{attachment:calibACC_sn5_20171017.png||width=33%,align="right"}}

=== LVDT ===
||'''Sensor'''||'''Efficiency [um/cnt]'''||
|| LVDT H1 ||<)> -0.258 ||
|| LVDT H2 ||<)> -0.252 ||
|| LVDT H3 ||<)> -0.233 ||
{{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"}}

=== Actuator polarization ===

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


=== Diagonalization matrix ===

 * ACC2EUL
||'''H1'''||'''H2'''||'''H3'''||'''To:'''||
|| 0.6440 ||-0.1725 ||-0.4714 ||''Long.''||
|| 0.1725 ||-0.6440 || 0.4714 ||''Trans.''||
|| 0.5635 || 0.5635 || 0.5635 ||''Yaw''  ||

 * LVDT2EUL
||'''H1'''||'''H2'''||'''H3'''||'''To:'''||
|| 0.6666 ||-0.3333 ||-0.3333 ||''Long.''||
|| 0      ||-0.5774 || 0.5774 ||''Trans.''||
|| 0.5612 || 0.5612 || 0.5612 ||''Yaw''  ||

 * EUL2COIL
||'''Long.'''||'''Trans.'''||'''Yaw'''||'''To:'''||
|| 1.     || 0      || 0.5940 ||''H1''||
||-0.5000 ||-0.8660 || 0.5940 ||''H2''||
||-0.5000 || 0.8660 || 0.5940 ||''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_EXV_IP'' ||
||<:-6> ''Driver IP address: 10.68.150.46'' ||
||'''Motor 0'''||'''Motor 1'''||'''Motor 2'''||'''Motor 3'''||'''Motor 4'''||'''Motor 5'''||
|| F0 Yaw || IP H1 || IP H2 || IP H3 ||''<blank>''||''<blank>''||


== GAS ==

=== LVDT ===
||'''Sensor'''||'''Efficiency [um/cnt]'''||
|| F0 LVDT GAS ||<)> -0.172 ||
|| F1 LVDT GAS ||<)> -0.215 ||
|| F2 LVDT GAS ||<)> -0.243 ||
|| F3 LVDT GAS ||<)> -0.225 ||
|| BF LVDT GAS ||<)>  0.204 ||

{{attachment:calibLVDT_ETMX_F0GAS20171012.png||width=33%,align="left"}}
{{attachment:calibLVDT_ETMX_F1GAS20170907.png||width=33%,align="center"}}
{{attachment:calibLVDT_ETMX_F2GAS20170822.png||width=33%,align="right"}}

{{attachment:calibLVDT_ETMX_F3GAS20170803.png||width=33%,align="left"}}
{{attachment:calibLVDT_ETMX_BFGAS20170725.png||width=33%,align="center"}}

=== Fishing Rod (stepper motor) ===
''See also:'' [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DGS/Projects/StepperMotor|Stepper motor setup]]

==== Motor driver ====

||<:-6> ''Epics channel name: K1:STEPPER_EXV_GAS'' ||
||<:-6> ''Driver IP address: 10.68.150.45'' ||
||'''Motor 0'''||'''Motor 1'''||'''Motor 2'''||'''Motor 3'''||'''Motor 4'''||'''Motor 5'''||
|| F0 GAS || F1 GAS ||<#FFFF00>''<blank>''|| F3 GAS || BF GAS ||<#FFFF00> F2 GAS ||

==== Property ====

|| ||'''F0 GAS'''||'''F1 GAS'''||'''F2 GAS'''||'''F3 GAS'''||'''BF GAS'''||
|| Movable range || 6 mm (± 3 mm) ||''(TBC)''||''(TBC)''||''(TBC)''|| full range (± 5.5 mm) ||
|| +step direction || down || down || down || down || down ||


== BF ==

{{attachment:BFconfig_ETMXv2.png}}

 * 2020.5.20 corrected as below.
{{attachment:ETMX_BFdumper_corrected.png||width=500}}

=== LVDT (BF Damper) ===
||'''Sensor'''||'''Efficiency [um/cnt]'''||
|| LVDT V1 ||<)> -0.3785 ||
|| LVDT V2 ||<)>  0.3852 ||
|| LVDT V3 ||<)>  0.3902 ||
|| LVDT H1 ||<)>  0.4060 ||
|| LVDT H2 ||<)> -0.3821 ||
|| LVDT H3 ||<)> -0.3629 ||

Note: The polarities are determined to output positive signals when the BF shifts respectively to +vertical/+yaw direction for Vertical/Horizontal LVDTs. 

{{attachment:calibLVDT_ETMX_BFV1_20170802.png||width=33%,align="left"}}
{{attachment:calibLVDT_ETMX_BFV2_20170802.png||width=33%,align="center"}}
{{attachment:calibLVDT_ETMX_BFV3_20170803.png||width=33%,align="right"}}

{{attachment:calibLVDT_ETMX_BFH1_20170802.png||width=33%,align="left"}}
{{attachment:calibLVDT_ETMX_BFH2_20170802.png||width=33%,align="center"}}
{{attachment:calibLVDT_ETMX_BFH3_20170802.png||width=33%,align="right"}}


=== Actuator polarization ===

Polarity is determined so that an +offset at the COILOUTF applies +yaw force in each actuator.
 * COIL V1: positive
 * COIL V2: positive
 * COIL V3: negative
 * COIL H1: positive
 * COIL H2: negative
 * COIL H3: negative

Note: Polarity may change when connecting the secondary coil to the cable. This configuration is confirmed on [2017.10.27]

=== Diagonalization matrix ===

 * LVDT2EUL
||'''V1'''||'''V2'''||'''V3'''||'''H1'''||'''H2'''||'''H3'''||'''To:''' ||
|| 0      || 0      || 0      ||-0.6667 || 0.3333 || 0.3333 ||''Long.'' ||
|| 0      || 0      || 0      || 0      || 0.5774 ||-0.5774 ||''Trans.''||
|| 0.3333 || 0.3333 || 0.3333 || 0      || 0      || 0      ||''Vert.'' ||
|| 0.9158 || 0.9158 ||-1.8315 || 0      || 0      || 0      ||''Roll''  ||
|| 1.5861 ||-1.5861 || 0      || 0      || 0      || 0      ||''Pitch'' ||
|| 0      || 0      || 0      || 0.8170 || 0.8170 || 0.8170 ||''Yaw''   ||

 * EUL2COIL
||'''L''' ||'''T''' ||'''V''' ||'''R''' ||'''P''' ||'''Y''' ||'''To:'''||
|| 0      || 0      || 1.     || 0.1820 || 0.3152 || 0      ||''V1''||
|| 0      || 0      || 1.     || 0.1820 ||-0.3152 || 0      ||''V2''||
|| 0      || 0      || 1.     ||-0.3640 || 0      || 0      ||''V3''||
||-1      || 0      || 0      || 0      || 0      || 0.4080 ||''H1''||
|| 0.5    || 0.8660 || 0      || 0      || 0      || 0.4080 ||''H2''||
|| 0.5    ||-0.8660 || 0      || 0      || 0      || 0.4080 ||''H3''||

=== Picomotor ===
''See also:'' [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DGS/Projects/PicoMotor|Picomotor digital setup]]

||<:-3> ''Epics channel name: K1:PICO_ETMX'' ||
||<:-3> ''Driver IP address: 10.68.150.20'' ||
||'''CH1'''||'''CH2'''||'''CH3'''||
|| BF moving mass A || BF moving mass B || Payload yaw ||

 * BF moving masses (both A and B ) are currently disabled because of weight limit for upper GAS stages

=== Suspension models in MEDM ===
|| '''Stage''' ||'''DOF''' ||'''Author''' ||'''Data''' ||'''Date''' ||'''klog''' ||
|| IP      || L      || Yasui     || /kagra/Dropbox/Measurements/VIS/PLANT/ETMX/2022/02/PLANT_ETMX_STANDBY_IP_TEST_L_202202181906.xml || 2022/2/22 || [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19868|klog19868]]    ||
|| IP      || T      || Yasui     || /kagra/Dropbox/Measurements/VIS/PLANT/ETMX/2022/02/PLANT_ETMX_STANDBY_IP_TEST_T_202202181906.xml || 2022/2/22 ||[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19868|klog19868]]    ||
|| IP      || Y      || Yasui     || /kagra/Dropbox/Measurements/VIS/PLANT/ETMX/2022/02/PLANT_ETMX_STANDBY_IP_TEST_Y_202202181906.xml || 2022/2/22 ||[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19868|klog19868]]    ||
|| BF      || L      || Yasui     || /kagra/Dropbox/Measurements/VIS/PLANT/ETMX/2022/02/PLANT_ETMX_STANDBY_BF_TEST_L_202202181906.xml || 2022/2/22 ||[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19868|klog19868]]    ||
|| BF      || P      || Yasui     || /kagra/Dropbox/Measurements/VIS/PLANT/ETMX/2022/02/PLANT_ETMX_STANDBY_BF_TEST_P_202202181906.xml || 2022/2/22 ||[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19868|klog19868]]    ||
|| BF      || R      || Yasui     || /kagra/Dropbox/Measurements/VIS/PLANT/ETMX/2022/02/PLANT_ETMX_STANDBY_BF_TEST_R_202202181906.xml || 2022/2/22 ||[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19868|klog19868]]    ||
|| BF      || T      || Yasui     || /kagra/Dropbox/Measurements/VIS/PLANT/ETMX/2022/02/PLANT_ETMX_STANDBY_BF_TEST_T_202202181906.xml || 2022/2/22 ||[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19868|klog19868]]    ||
|| BF      || V      || Yasui     || /kagra/Dropbox/Measurements/VIS/PLANT/ETMX/2022/02/PLANT_ETMX_STANDBY_BF_TEST_V_202202181906.xml || 2022/2/22 ||[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19868|klog19868]]    ||
|| BF      || Y      || Yasui     || /kagra/Dropbox/Measurements/VIS/PLANT/ETMX/2022/02/PLANT_ETMX_STANDBY_BF_TEST_Y_202202181906.xml || 2022/2/22 ||[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19868|klog19868]]    ||
|| GAS      || BF      || Yasui     || /kagra/Dropbox/Measurements/VIS/PLANT/ETMX/2022/02/PLANT_ETMX_STANDBY_GAS_TEST_BF_202202181906.xml || 2022/2/22 ||[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19868|klog19868]]    ||
|| GAS      || F0      || Yasui     || /kagra/Dropbox/Measurements/VIS/PLANT/ETMX/2022/02/PLANT_ETMX_STANDBY_GAS_TEST_F0_202202181906.xml || 2022/2/28 ||[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19914|klog19914]]    ||
|| GAS      || F1      || Yasui     || /kagra/Dropbox/Measurements/VIS/PLANT/ETMX/2022/02/PLANT_ETMX_STANDBY_GAS_TEST_F1_202202181906.xml || 2022/2/28 ||[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19914|klog19914]]    ||
|| GAS      || F3      || Yasui     || /kagra/Dropbox/Measurements/VIS/PLANT/ETMX/2022/02/PLANT_ETMX_STANDBY_GAS_TEST_F3_202202181906.xml || 2022/2/28 ||[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19914|klog19914]]    ||
|| MN      || L      || Yasui     || /kagra/Dropbox/Measurements/VIS/PLANT/ETMX/2022/02/PLANT_ETMX_STANDBY_MN_TEST_L_202202181906.xml || 2022/2/28 ||[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19914|klog19914]]    ||
|| MN      || P      || Yasui     || /kagra/Dropbox/Measurements/VIS/PLANT/ETMX/2022/02/PLANT_ETMX_STANDBY_MN_TEST_P_202202181906.xml || 2022/2/28 ||[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19914|klog19914]]    ||
|| MN      || R      || Yasui     || /kagra/Dropbox/Measurements/VIS/PLANT/ETMX/2022/02/PLANT_ETMX_STANDBY_MN_TEST_R_202202181906.xml || 2022/2/28 ||[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19914|klog19914]]    ||
|| MN      || T      || Yasui     || /kagra/Dropbox/Measurements/VIS/PLANT/ETMX/2022/02/PLANT_ETMX_STANDBY_MN_TEST_T_202202181906.xml || 2022/2/28 ||[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19914|klog19914]]    ||
|| MN      || Y      || Yasui     || /kagra/Dropbox/Measurements/VIS/PLANT/ETMX/2022/02/PLANT_ETMX_STANDBY_MN_TEST_Y_202202181906.xml || 2022/2/28 ||[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=19914|klog19914]]    ||