Static Characteristics of a Measuring Instrument



By static characteristics we mean attribute associated with static measurements or measurement of quantities which are constant or vary very slowly with time.

 The measuring instrument contains :

  1. Digital Standard meter.
  2. Digital Testing meter
  3. Precision variable power supplies___3 Nos.

Fitted on a fiber cabinet

Accuracy & Precision  : compared from Standard  and testing meters.

Hysteresis  : This effect can be observed in testing meter. The testing meter may show one set of readings when the voltage is increased in steps and another set of readings when the voltage is decreased in steps. The hysteresis effect can be shown.

Repeatability  : Degree of closeness with which a particular reading of an instrument can be observed.

Linearity  : Non linearity of the instrument can be shown.


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