Differences between revisions 22 and 23

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	1.26 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	1.25 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	88 turns	SmCo(?) 2mm dia, 2mm thick ?	0.0015 N/A	low power
IM	585 turns	SmCo(?) 2mm dia, 2mm thick ?	0.015 N/A	low power
Marionette	585 turns	SmCo(?) 2mm dia, 2mm thick ?	0.015 N/A	low power

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 22 as of 2017-03-10 16:05:42 → 
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  Editor: YutaMichimura
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+   ← Revision 23 as of 2017-03-11 12:46:29 → ⇥
  Size: 2408
  Editor: YutaMichimura
  Comment:
-Deletions are marked like this.
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+ * Actuator design of KAGRA cryogenic payload [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5938|JGW-G1605938]]