Differences between revisions 1 and 32 (spanning 31 versions)

bKAGRA Suspensions Actuator Design Summary

suspension and stage	coil	magnet	coil-magnet	coil driver
MCi/e/o (Type-C) TM	41 turns by default (some are 40 turns?), ~2.5 Ohms(klog#2124)	NdFeB 1mm dia, 5mm thick	0.0014 N/A at max	TAMA
IM	-	-	-	-
IMMT1/2 (Type-C) TM	39 turns ?	NdFeB 2mm dia, 5mm thick		high power
IM	-	-	-	-
PR2/3/M (Type-Bp) TM	600 turns	SmCo 6mm dia, 3mm thick	0.129 N/A at max	high power
IM	600 turns	SmCo 10mm dia, 10mm thick	1.26 N/A at max	high power
BS (Type-B) TM	600 turns, ~11 Ohms	SmCo 2mm dia, 3mm thick	0.0138N/A at max	low power
IM	600 turns, ~13 Ohms	SmCo 10mm dia, 10mm thick	1.25 N/A at max	low power
SR2/3/M (Type-B) TM	600 turns	SmCo 2mm dia, 5mm thick	0.0225 N/A at max	low power
IM	600 turns	SmCo 10mm dia, 10mm thick	1.26 N/A at max	low power
ITM/ETM (Cryopayload) TM	100 turns, 17 Ohms (measured at room temp; estimated to be 0.6 Ohms for cryogenic)	SmCo(?) 2mm dia, 2mm thick ?	0.0015 N/A at max (at room temp)	low power
IM	600 turns, 57 Ohms (measured at room temp; estimated to be 2 Ohms for cryogenic)	SmCo(?) 2mm dia, 2mm thick ?	0.015 N/A at max (at room temp.)	low power(with R65 and R97 700Ohm)
Marionette	600 turns, 57 Ohms (measured at room temp; estimated to be 2 Ohms for cryogenic)	SmCo(?) 5mm dia, 13mm thick ?	0.45 N/A at max (at room temp.)	low power(with R65 and R97 700Ohm)

Coil Drivers

TAMA coil driver has 50 Ohm, 20 mA/V. EL2099, 440 mA at max. Summary by Koji Arai is here.
Low Power Coil Driver (JGW-D1503507) has 7.8 kOhm at DC (1.3 kOhm above 312 Hz), 0.128 mA/V at DC. AD8671, 10 mA at max.
High Power Coil Driver (JGW-D1503503) has 80 Ohm, 12.5 mA/V at DC. OPA548, 3 A at max.

-  ⇤ ← Revision 1 as of 2016-04-21 16:55:22 → 
  Size: 908
  Editor: YutaMichimura
  Comment:
+   ← Revision 32 as of 2017-07-12 10:47:44 → ⇥
  Size: 2952
  Editor: YutaMichimura
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
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-|| ||||||||<style="text-align:center">TM ||||||||<style="text-align:center">IM ||
||Suspension ||coil ||magnet ||coil-magnet ||coil driver ||coil ||magnet ||coil-magnet ||coil driver ||
||MCi/e/o (Type-C) ||40 turns ||NdFeB || || || || || || ||
||PR2/3/M (Type-Bp) ||600 turns ||SmCo 6mm dia, 3mm thick ||0.129 N/A at max|| || || || || ||
||BS (Type-B) ||600 turns ||SmCo 2mm dia, 3mm thick ||0.129 N/A at max|| || || || || ||
||SR2/3/M (Type-B) ||600 turns ||SmCo 2mm dia, 5mm thick ||0.129 N/A at max|| || || || || ||
||ITM/ETM (Cryopayload) ||600 turns(?) 500turns(?) ||SmCo(?) 2mm dia, 2mm thick ||??? || || || || || ||
+||suspension and stage ||coil ||magnet ||coil-magnet ||coil driver ||
||MCi/e/o (Type-C) '''TM''' ||41 turns by default (some are 40 turns?), ~2.5 Ohms([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=2124|klog#2124]]) ||NdFeB 1mm dia, 5mm thick ||0.0014 N/A at max ||TAMA ||
||'''IM''' ||- ||- ||- ||- ||
||IMMT1/2 (Type-C) '''TM''' ||39 turns ? ||NdFeB 2mm dia, 5mm thick || ||high power ||
||'''IM''' ||- ||- ||- ||- ||
||PR2/3/M (Type-Bp) '''TM''' ||600 turns ||SmCo 6mm dia, 3mm thick ||0.129 N/A at max ||high power ||
||'''IM''' ||600 turns ||SmCo 10mm dia, 10mm thick ||1.26 N/A at max ||high power ||
||BS (Type-B) '''TM''' ||600 turns, ~11 Ohms ||SmCo 2mm dia, 3mm thick ||0.0138N/A at max ||low power ||
||'''IM''' ||600 turns, ~13 Ohms ||SmCo 10mm dia, 10mm thick ||1.25 N/A at max ||low power ||
||SR2/3/M (Type-B) '''TM''' ||600 turns ||SmCo 2mm dia, 5mm thick ||0.0225 N/A at max ||low power ||
||'''IM''' ||600 turns ||SmCo 10mm dia, 10mm thick ||1.26 N/A at max ||low power ||
||ITM/ETM (Cryopayload) '''TM''' ||100 turns, 17 Ohms (measured at room temp; estimated to be 0.6 Ohms for cryogenic) ||SmCo(?) 2mm dia, 2mm thick ? ||0.0015 N/A at max (at room temp) ||low power ||
||'''IM''' ||600 turns, 57 Ohms (measured at room temp; estimated to be 2 Ohms for cryogenic) ||SmCo(?) 2mm dia, 2mm thick ? ||0.015 N/A at max (at room temp.) ||low power(with R65 and R97 700Ohm) ||
||'''Marionette''' ||600 turns, 57 Ohms (measured at room temp; estimated to be 2 Ohms for cryogenic) ||SmCo(?) 5mm dia, 13mm thick ? ||0.45 N/A at max (at room temp.) ||low power(with R65 and R97 700Ohm) ||
-Line 11:
+Line 18:
-BS TM: SmCo 2mm dia, 3mm thick BS IM: SmCo 10mm dia, 10mm thick
+== Coil Drivers ==
 * TAMA coil driver has 50 Ohm, 20 mA/V. EL2099, 440 mA at max. Summary by Koji Arai is [[http://tamago.mtk.nao.ac.jp/tama/ifo/www_suspension_install_status/coil_property.html|here]].
 * Low Power Coil Driver ([[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3507|JGW-D1503507]]) has 7.8 kOhm at DC (1.3 kOhm above 312 Hz), 0.128 mA/V at DC. AD8671, 10 mA at max.
 * High Power Coil Driver ([[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3503|JGW-D1503503]]) has 80 Ohm, 12.5 mA/V at DC. OPA548, 3 A at max.
-Line 13:
+Line 23:
-PRs TM: SmCo 6mm dia, 3mm thick PRs IM: SmCo 10mm dia, 10mm thick

SRs TM: SmCo 2mm dia, 5mm thick SRs IM: SmCo 10mm dia, 10mm thick

== Coil Drivers ==
+== Related Documents ==
 * Actuator Noise Modeling Report [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=3453|JGW-T1503453]]
 * BS Actuator Design (including design for SRs and PRs) [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=4450|JGW-T1504450]]
 * OSEM Coil/Magnet/Flag Calculation [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=3239|JGW-T1503239]]
 * Magnetic noise calculation for BS (and ETM/ITM, PRM/SRM) [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=4459|JGW-T1504459]]
 * Actuator design of KAGRA cryogenic payload [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5938|JGW-G1605938]]