jeffrey.garcia@LIGO.ORG - posted 15:28, Thursday 10 November 2011 - last comment - 15:34, Thursday 10 November 2011(1685)
QUAD 04 Diagonalization for R0 Yaw DoF
QUAD 04 BUILD 02 The Yaw DoF Diagonalization measurements for the R0 mass on the latest QUAD build were run yesterday and are attached below. The measurement was sine wave excitation at 1.3Hz with a 100-ct amplitude. The "F1" and "F2" OSEMs contribute to the "Yaw" DoF. The "F1" and "SD" isolation is at about ~28-30dB below the "Yaw" OSEMs. The other two OSEMs are isolated well below 30dB from "Yaw". These results indicate good isolation of the "Yaw" DoF on the R0 mass.
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Comments related to this report
This post is for measurements taken on 11/09/2011 for QUAD 04 BUILD 02. I attempted to retroactively change the subject line of the original post to include this QUAD's build number, but the aLog time-stamped the edited post at the edit time. These measurements are before Jeff B. and Andres R.'s adjustments on 11/10/2011 to QUAD 04 to correct Pitch errors. The subsequent measurements beginning on 11/10/2011 will be for QUAD 04 BUILD 03.