M1H Transfer Function Georg Gassner, March 6 th, 2013.

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Presentation transcript:

M1H Transfer Function Georg Gassner, March 6 th, 2013

2 Measurement Setup LCLS-II Phys. Meeting / March 6, 2013 Seismometer Vibco Buttkicker

3 M1H Background Noise – X-Axis LCLS-II Phys. Meeting / March 6, 2013

4 M1H Background Noise – Y-Axis LCLS-II Phys. Meeting / March 6, 2013

5 Vibrating the Stand LCLS-II Phys. Meeting / March 6, 2013 Buttkicker 43.6Hz

6 Applied Freq. vs. X-Axis Sensor on Top LCLS-II Phys. Meeting / March 6, nm Amplitude 3nm Amplitude 3µm Amplitude

7 Applied Freq. vs. Y-Axis Sensor on Top LCLS-II Phys. Meeting / March 6, 2013 Y- motion mostly caused by crosstalk due to sensor placement off axis 3nm Amplitude

8 Vibrating the Floor LCLS-II Phys. Meeting / March 6, 2013 Vibco

9 Applied Freq. vs. X-Axis Sensors LCLS-II Phys. Meeting / March 6, nm Amplitude3nm Amplitude

10 Applied Freq. vs. Y-Axis Sensors LCLS-II Phys. Meeting / March 6, nm Amplitude

11 Result - Transfer Function LCLS-II Phys. Meeting / March 6, Y-axis vibration 1=1 -X-axis response varies by the induced frequency.

12 Construction Activity test Aug 1 st 2012 LCLS-II Phys. Meeting / March 6, 2013 Road Header M1H top 24Hz (27; 29) M2H top 20Hz M1H floor <20Hz Integrated raw data: 23Hz

13 Construction Activity test Aug 1 st 2012 LCLS-II Phys. Meeting / March 6, 2013 Concrete Drill M1H top 30Hz (24; 45) Integrated raw data: 30Hz

14 Outlook LCLS-II Phys. Meeting / March 6, 2013 Mirror yaw measurements: -No measurement device available to measure yaw movement with 1µrad sampling rate. -Solution: Use x-ray beam to measure effect of mirror vibration in FEH. -Install vibration device and seismometer sensors on PAMM of 3/20. Measure construction activity: -Installed sensors in BTH today. -Construction activities and vibration measurements on 3/19.

Construction Equipment Activities – Sensor Placement Slide 15 QT41, 42, 43 QUM1 &2 QEM1 & 2 Construction Activities

16 Sensors on QUM#1 & #2 and QEM#1 & #2 LCLS-II Phys. Meeting / March 6, 2013

17 Sensors on QT41, QT42 & QT43 LCLS-II Phys. Meeting / March 6, 2013