SR3 suspension information <> ----- = position = == FARO measurement == == GAS default height (LVDT readout) == * BF GAS LVDTIN: * F1 GAS LVDTIN: * F0 GAS LVDTIN: ----- = suspension parameters = == resonant frequencies == {{attachment:KAGRA/Subgroups/VIS/TypeB/SR3detail/SRresFreqs_v2.pdf||width=800, height=500}} == position of the COM == calculated from the resonant frequencies. ----- = sensor & actuator parameters = == Oplev calibration == == OSEM calibration == '''IM-stage''' [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4846|klog#4846]] || number# || for which? || calibration factor [um/cnt] || linear range [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:sr3imv1osem.png||width=33%,align="left"}} {{attachment:sr3imv2osem.png||width=33%,align="center"}} {{attachment:sr3imv3osem.png||width=33%,align="right"}} {{attachment:sr3imh1osem.png||width=33%,align="left"}} {{attachment:sr3imh2osem.png||width=33%,align="center"}} {{attachment:sr3imh3osem.png||width=33%,align="right"}} == 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] || [[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:sr3sflvdt20180504.png||width=33%,align="center"}} {{attachment:sr3bf-calibration-2018-4-5.png||width=33%,align="right"}} == IP-LVDT calibration == || Sensor|| Efficiency [um/cnt] || Noise level at 10 Hz || || LVDT H1 ||<)> || || || LVDT H2 ||<)> || || || LVDT H3 ||<)> || || /* {{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"}} */ == Geophone (calibration??) == ==== 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 || # || || || || || GEO H2 || # || || || || || GEO H3 || # || || || || /* {{attachment:respGEOall20171220.png||width=500}} */ ==== Noise ==== ||'''Sensor'''||'''Noise [m/rtHz] @ 0.1 Hz'''||'''Noise [m/rtHz] @ 10 Hz'''|| || GEO H1 || || || || GEO H2 || || || || GEO H3 || || || /* {{attachment:psdGEOnoiseVel20171220.png||width=500}} {{attachment:psdGEOnoiseDisp20171220.png||width=500}} */ ==== Calibration ==== * Converted displacement [um] = 3.052 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}} */ == 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:'' [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DGS/Projects/StepperMotor|Stepper motor setup]] === Assignment === ||<:-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'''|| || || || || ||''''||''''|| ||<:-6> ''Epics channel name: K1:STEPPER_***_GAS'' || ||<:-6> ''Driver IP address: 10.68.150.**'' || ||'''Motor 0'''||'''Motor 1'''||'''Motor 2'''||'''Motor 3'''||'''Motor 4'''||'''Motor 5'''|| || || || || ||''''||''''|| === Adjustable range === * TF: * SF: [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4720|klog#4720]] * BF: [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4654|klog#4654]] ----- === Suspension models in MEDM === || '''Stage''' ||'''DOF''' ||'''Author''' ||'''Data''' ||'''Date''' ||'''klog''' || || IP || L || Terrence || /kagra/Dropbox/Subsystems/VIS/vis_commissioning/sr3/transfer_function/IP_L_EXC.xml || 2021/8/19 || [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=17956|klog17956]] || || IP || T || Terrence || /kagra/Dropbox/Subsystems/VIS/vis_commissioning/sr3/transfer_function/IP_T_EXC.xml || 2021/8/19 || [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=17956|klog17956]] || || IP || Y || Terrence || /kagra/Dropbox/Subsystems/VIS/vis_commissioning/sr3/transfer_function/IP_Y_EXC.xml || 2021/8/19 || [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=17956|klog17956]] || || GAS || F0 || Terrence || /kagra/Dropbox/Subsystems/VIS/vis_commissioning/sr3/transfer_function/F0_GAS_EXC.xml || 2021/8/19 || [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=17956|klog17956]] || || GAS || F1 || Terrence || /kagra/Dropbox/Subsystems/VIS/vis_commissioning/sr3/transfer_function/F1_GAS_EXC.xml || 2021/8/19 || [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=17956|klog17956]] || || GAS || BF || Terrence || /kagra/Dropbox/Subsystems/VIS/vis_commissioning/sr3/transfer_function/BF_GAS_EXC.xml || 2021/8/19 || [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=17956|klog17956]] || || IM || L || Terrence || /kagra/Dropbox/Subsystems/VIS/vis_commissioning/sr3/transfer_function/IM_L_EXC.xml || 2021/8/19 || [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=17956|klog17956]] || || IM || R || Terrence || /kagra/Dropbox/Subsystems/VIS/vis_commissioning/sr3/transfer_function/IM_R_EXC.xml || 2021/8/19 || [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=17956|klog17956]] || || IM || P || Terrence || /kagra/Dropbox/Subsystems/VIS/vis_commissioning/sr3/transfer_function/IM_P_EXC.xml || 2021/8/19 || [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=17956|klog17956]] || || IM || T || Terrence || /kagra/Dropbox/Subsystems/VIS/vis_commissioning/sr3/transfer_function/IM_T_EXC.xml || 2021/8/19 || [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=17956|klog17956]] || || IM || Y || Terrence || /kagra/Dropbox/Subsystems/VIS/vis_commissioning/sr3/transfer_function/IM_Y_EXC.xml || 2021/8/19 || [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=17956|klog17956]] || || IM || V || Terrence || /kagra/Dropbox/Subsystems/VIS/vis_commissioning/sr3/transfer_function/IM_V_EXC.xml || 2021/8/19 || [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=17956|klog17956]] || || TM || L || Terrence || /kagra/Dropbox/Subsystems/VIS/vis_commissioning/sr3/transfer_function/TM_L_EXC.xml || 2021/8/19 || [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=17956|klog17956]] || || TM || P || Terrence || /kagra/Dropbox/Subsystems/VIS/vis_commissioning/sr3/transfer_function/TM_P_EXC.xml || 2021/8/19 || [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=17956|klog17956]] || || TM || Y || Terrence || /kagra/Dropbox/Subsystems/VIS/vis_commissioning/sr3/transfer_function/TM_Y_EXC.xml || 2021/8/19 || [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=17956|klog17956]] || ----- = Related Link = * [[KAGRA/Subgroups/VIS/TypeBp/PR2|PR2]] * [[KAGRA/Subgroups/VIS/TypeBp/PR3|PR3]] * [[KAGRA/Subgroups/VIS/TypeBp/PRM|PRM]]