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CMS Motion Measurements

CMS Motion Measurements . Mechanical Measurement Lab , 2009.21.09 EDMS no. 1027459. Equipment. Two geophones and the MKII acquisition system were used for the measurements. To measure the ground vibration, two geophones were placed close together on the floor under the detector

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CMS Motion Measurements

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  1. CMS Motion Measurements Mechanical Measurement Lab, 2009.21.09 EDMS no. 1027459

  2. Equipment • Two geophones and the MKII acquisition system were used for the measurements. • To measure the ground vibration, two geophones were placed close together on the floor under the detector • To discover the behaviour of different parts of the experiment reference geophone was placed on the ground and other one was placed on the appropriate part.

  3. Ground motion measurement • To measure the ground vibration, two geophones were placed close together on the floor under YB0. • The measurements were provided while the cooling systems were off.

  4. YB0 motion measurement PSD of the signals Vertical direction Geophones Cooling system OFF PSD of the signals Beam direction

  5. HF structure motion measurement PSD of the signals Vertical direction Cooling system OFF Geophones PSD of the signals Beam direction

  6. Next Step • Measurement of the motions of rotating shielding. Geophones

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