Differences between revisions 13 and 15 (spanning 2 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?)	NdFeB 1mm dia, 5mm thick	0.0014 N/A at max	TAMA
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	1.12 N/A at max	high power
BS (Type-B) TM	600 turns	SmCo 2mm dia, 3mm thick	0.0138N/A at max (*)	low power
IM	600 turns	SmCo 10mm dia, 10mm thick	1.12 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	1.12 N/A at max	low power
ITM/ETM (Cryopayload) TM	600/500 turns(?)	SmCo(?) 2mm dia, 2mm thick	???	???
IM	???	???	???	???

(*) calculated using Mathematica code in JGW-T1503239

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, 13.6 mA/V at DC. OPA548, 3 A at max.

-  ⇤ ← Revision 13 as of 2016-09-08 13:23:40 → 
  Size: 2268
  Editor: YutaMichimura
  Comment:
+   ← Revision 15 as of 2016-09-09 16:02:52 → ⇥
  Size: 2279
  Editor: YutaMichimura
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 9:
-||SR2/3/M (Type-B) '''TM''' ||600 turns ||Sm``Co 2mm dia, 5mm thick ||N/A at max ||low power ||
+||SR2/3/M (Type-B) '''TM''' ||600 turns ||Sm``Co 2mm dia, 5mm thick ||0.0225 N/A at max (*) ||low power ||
 Line 19:
- * High Power Coil Driver ([[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3503|JGW-D1503503]]) has 73 Ohm, 13.6 mA/V at DC. OPA548, 3 A 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, 13.6 mA/V at DC. OPA548, 3 A at max.