1 : to ascertain the caliber of (something) 2 : to determine, rectify, or mark the graduations of (something, such as a thermometer tube) 3 : to standardize (something, such as a measuring instrument) by determining the deviation from a standard so as to ascertain the proper correction factors.

What is the exact meaning of calibration?

Formally, calibration is a documented comparison of the measurement device to be calibrated against a traceable reference standard/device. The reference standard may be also referred to as a “calibrator.” Logically, the reference standard should be more accurate than the device to be calibrated.

What is calibration in simple words?

In measurement technology and metrology, calibration is the comparison of measurement values delivered by a device under test with those of a calibration standard of known accuracy.