Alternative design approach for caging, sensing, and controlling next generation suspensions

Document #:

LIGO-G1601426-v3

Document type:

G - Presentations (eg Graphics)

Abstract:

We present an alternative design approach for caging, sensing and controlling next generation suspensions.

Files in Document:

• G1601426-v3 (G1601426-v3.pdf, 1.8 MB)

Other Files:

• G1601426-v3 (G1601426-v3.docx, 383.7 kB)

Topics:

• Seismic Isolation
• Suspensions
• Basic R&D
• Sensing and Control

Authors:

• Brett Shapiro

Keywords:

SUS cage 3G

Notes and Changes:

-v3 Added an idea from Rana to actuate on the test mass with something similar to the photon calibrator. This lets us get rid of the reaction mass. An ESD can still be mounted to the cage for lock acquisition.

Referenced by:

• LIGO-T1300993-v3: Suggestions for modifications to future suspension designs