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Revision 17 as of 2016-09-12 10:07:37
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Revision 18 as of 2016-09-12 10:10:23
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||'''IM''' ||600 turns ||Sm``Co 10mm dia, 10mm thick ||1.25 N/A at max ||high power || ||'''IM''' ||600 turns ||Sm``Co 10mm dia, 10mm thick ||1.26 N/A at max ||high power ||
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||'''IM''' ||600 turns ||Sm``Co 10mm dia, 10mm thick ||1.25 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 ||
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||SR2/3/M (Type-B) '''TM''' ||600 turns ||Sm``Co 2mm dia, 5mm thick ||0.0225 N/A at max ||low power ||
||'''IM''' ||600 turns ||Sm``Co 10mm dia, 10mm thick ||1.25 N/A at max ||low power ||

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

600/500 turns(?)

SmCo(?) 2mm dia, 2mm thick

???

???

IM

???

???

???

???

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.

KAGRA/Subgroups/VIS/ActuatorDesign (last edited 2017-07-21 12:13:39 by YutaMichimura)