PRM suspension information

<<TableOfContents(3)>>

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= position =

== FARO measurement ==
 * mirror position offset relative to the tank: (+4.7, +4.6, -1.5) 
  NOTE: this was measured before inner frame tilt was fixed.
 *[[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0074/T1707433/001/PRM_171117.pdf|details]]

== GAS default height (LVDT readout) ==

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= suspension parameters =
== resonant frequencies ==


== position of the COM ==
calculated from the resonant frequencies.

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= sensor & actuator parameters =
== Oplev calibration ==
== OSEM ==
=== Calibration ===
=== Coil resistance ===
'''TM'''
 * H1: 15.7 Ohm
 * H2: 15.8 Ohm
 * H3: 16.0 Ohm
 * H4: 15.8 Ohm
== LVDT ==
=== Calibration ===
=== Coil resistance ===
'''SF'''
 * Primary: 72.5 Ohm
 * Secondary: 200 Ohm
 * Actuator: 106 Ohm
'''BF'''
 * Primary: 81.6 Ohm
 * Secondary: 202 Ohm
 * Actuator: 114 Ohm
== actuation efficiency ==


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= Related Link =
 * [[KAGRA/Subgroups/VIS/TypeB/BSdetail|BS]]
 * [[KAGRA/Subgroups/VIS/TypeBp/PR2|PR2]]
 * [[KAGRA/Subgroups/VIS/TypeBp/PR3|PR3]]