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Sensors and Actuators for the Advanced LIGO Mirror Suspensions

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arxiv 1205.5643 v1 pith:SZULF6NO submitted 2012-05-25 gr-qc astro-ph.IM

Sensors and Actuators for the Advanced LIGO Mirror Suspensions

L. Carbone , S. M. Aston , R. M. Cutler , A. Freise , J. Greenhalgh , J. Heefner , D. Hoyland , N. A. Lockerbie
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D. Lodhia N. A. Robertson C. C. Speake K. A. Strain A. Vecchio
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classification gr-qc astro-ph.IM
keywords advancedligosuspensionsactuatorscontrolelectronicsintegratedread-out
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We have developed, produced and characterised integrated sensors, actuators and the related read-out and drive electronics that will be used for the control of the Advanced LIGO suspensions. The overall system consists of the BOSEMs (displacement sensor with integrated electro-magnetic actuator), the satellite boxes (BOSEM readout and interface electronics) and six different types of coil-driver units. In this paper we present the design of this read-out and control system, we discuss the related performance relevant for the Advanced LIGO suspensions, and we report on the experimental activity finalised at the production of the instruments for the Advanced LIGO detectors.

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