Problem raith SNF 2011-02-11 15:22:03: Piezo post are not moving -- use center piezo positions

jwc at snf.stanford.edu jwc at snf.stanford.edu
Fri Feb 11 15:22:04 PST 2011


Afternoon:
In testing the system today the data collected indicates that the piezo post controlling the leveling of the Laser Interferometer Stage are in fact not moving as requested by the Height Control Module SW; although the display icons of the piezo post show they moved....
Users are suggested to operate the system with centered piezos which I have recently calibrated accurately.
JWC




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