The process of calibration and measurements needs control. In fact calibration itself can be viewed as a process to set up control on instruments and get certainty. For fixed value type instruments like reference guidelines, the property estimation and calibration system measurement uncertainty is resolved and reported in a calibration certificate.
What is Calibration
The process of measurements needs control. In fact calibration itself can be viewed as a process to set up control on instruments and get confidence. The arrangement of operations which build up, under specified conditions, the relationships between qualities showed by a measuring instrument or system or values represented by a material measure or reference material; and the corresponding values of a quantity realized by a reference standard is called calibration.
Calibration involves checking the operational integrity of a test or measuring equipment or of a measurement standard of unverified accuracy in order to identify, correspond, report or wipe out (by conformity) any deviation in precision,
Capability or from any other required performance. Calibration can be carried out for three possible purposes.
- Determining whether or not a particular instrument or standard is within some established tolerance in respect of its deviation from a reference standard.
- Reporting of deviations in measurements from nominal values.
- Repairing / adjusting the instrument or standard to bring it back within toleranc.
For a majority of equipment, the instrument calibration result is then compared and process/item necessities; if found past detail, corrective repair and/or alteration and re calibration is performed. If not found past particular, compensation or adjustment is optional.
For fixed value type instruments like reference standards, the attribute value and calibration system measurement instability is resolved and reported in a calibration certificate. In all cases, a calibration report is given which expresses the present position of the instrument with reference to its required performance specifications. In situations where it is not possible to correct the instrument by adjustment, the reading as given in the calibration report should be used and necessary corrections to the readings obtained during a measurement should be made in order to get the right value of the quantity being measured.
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