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, D. Lodhia, N. A. Robertson, C. C., Speake, K. A. Strain, and A. Vecchio
TL;DR
This paper details the design, development, and testing of integrated sensors, actuators, and electronics crucial for controlling the Advanced LIGO mirror suspensions, enhancing gravitational wave detection stability.
Contribution
It introduces a comprehensive control system with BOSEMs, satellite boxes, and coil-driver units specifically designed for Advanced LIGO suspensions, including performance evaluation and production results.
Findings
Successful development of integrated sensors and actuators
Performance metrics suitable for LIGO suspension control
Production of instruments for operational deployment
Abstract
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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