What are the characteristics of a low uncertainty calibration class load cell?
A low uncertainty calibration class load cell has the following attributes: • The cell has a high repeatability (or a low repeatability error). • The linearity curve is well known (It does not have to be highly linear. It just has to be well known either as a polynomial curve or a look up table). • The cell should have a low hysteresis. • The cell should have very low creep. • The cell should have low drift. • The cell should be calibrated with a low uncertainty ie with good calibration practices on good calibration equipment. • The read out should be highly accurate and have a good uncertainty. • The fixturing used should be carefully designed that ensures accurate calibration with high repeatability.
