Hi Friends:
We are buying a Bruker AV400 with a 5mm BBI probe. The vibration test was done at the site we are going to put the magnet. The following peaks were observed:
Frequency (Hz) Intensity (mm/s*s)
5 0.35
9 0.25
14 0.25
18 0.50
26 0.35
28 0.45
37 0.65
A Bruker engineer recommended antivibration legs as the intensities are higher than 0.1 and antivibration feet will only reduce vibrations above 8 Hz (the feet will amplify the vibration at 5 Hz).
What kinds of experiments will be affected if we do not put antivibration legs and feet based on your experiences?
Thank you very much for your help.
Zhe Zhou, Ph.D.
Research Specialist (NMR)
Analytical Sciences, Dow Chemical Company
2301 N. Brazosport Blvd., B-1219
Freeport, TX 77541
Tel: 979-238-1387
Fax: 979-238-0752
Email: zzhou_at_dow.com
Received on Wed May 11 2005 - 09:26:20 MST