# What are the major terminologies related to Instrument calibration?

**URL:** <https://forumautomation.com/t/what-are-the-major-terminologies-related-to-instrument-calibration/1623>\
**Category:** Instrumentation\
**Tags:** calibration\
**Created:** [January 4, 2017, 4:50am UTC](https://forumautomation.com/t/what-are-the-major-terminologies-related-to-instrument-calibration/1623 "2017-01-04T04:50:39Z")\
**Posts on this page:** 1\
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**Author:** ![denizen](https://forumautomation.com/letter_avatar_proxy/v4/letter/d/848f3c/32.png) [@denizen](https://forumautomation.com/u/denizen)\
**Post date:** [January 4, 2017, 4:50am UTC](https://forumautomation.com/t/what-are-the-major-terminologies-related-to-instrument-calibration/1623/1 "2017-01-04T04:50:39Z")

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Accuracy - The degree of an indicated value to an accepted standard value or true value.

Calibration - correcting or determining the error of an existing scale or of evaluating one quantity in terms of reading from another.

Factory calibration - adjust all the internal working of the instrument to bring it into agreement with the standard.

Field calibration - compare one instrument with another instrument.

The other important terms are

Error - Measurement error is the difference between the measured value of a quantity and its true value. Precision - Precision refers to how close together a series of measurements are to each other. Resolution Repeatability Reprocucibilty Traceability Accuracy - Accuracy refers to how close a measured value is to an accepted value.