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How long does a calibration stands valid?

Question asked by osmobel on Aug 10, 2010
Latest reply on Aug 12, 2010 by antennas4space
How long does a calibration stands valid?

The tests I perform are done inside a vacuum chamber which can't be opened for all the test long. So in general the calibration, which is carried out before the chamber is closed, stands the same through all the test. Although there is little we can do about recalibrating at the middle of the test, could someone confirm me if the calibration changes a lot from the very first day to the last one (usually 2 or + day after)?.

I expect it will, but I'd rather prefer someone more experienced to confirm this point.

Than you