The hysteresis is feature of the instrument toprovide different reading values at the same measurand when it varies for increasing values and decreasing values. Hysteresis is therefore an essential feature for instruments that can measure both increasing and decreasing values, such as dial indicators, pressure gauges, force gauges and so on. If a measuring instrument is subject to hysteresis, but its use is only for increasing or decreasing values, the maximum error evaluation can exclude hysteresis and thus is not used to estimate the measurement uncertainty. (see chart below).



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  1. Why should I calibrate the instrument?
  2. How often should I calibrate the instrument?
  3. Metrological validation
  4. Measurement uncertainty
  5. Metrological requirements verification
  6. Metrological features
  7. Linearity
  8. Hysteresis
  9. Stability


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