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What Is Calibration And Calibration Services?
The word calibration is associated with the concepts of accuracy of standard or measuring instrument where measurement error and uncertainty are dealt with.
The word calibration is associated with the concepts of accuracy of standard or measuring instrument where measurement error and uncertainty are dealt with.
Calibration can be termed as the process whereby a measuring instrument is compared with a measurement standard in order to establish the relation between the values indicated by the instrument and those of the standard.
Calibration makes comparison of an unknown measurement device against the better standard. Calibration process helps to adjust the output/indication on a measurement instrument to have the value of the applied standard with accuracy. With the help of calibration constants, you can correct and adjust the indication of errors in thermometer. Therefore it will result in the true temperature in Celsius at specific points on the scale. In computing too, you can create relationship between the physical pen position and the position of the cursor on the screen by calibrating an interactive white board pen or other input method.
The measurement must have demonstrable traceability to give confidence in the accuracy of calibration results. In other words, the results obtained through calibration (of the measurement standard used) must be traceable back to standards that are held at a national measurement institute, through an unbroken chain of comparisons where each link has declared a kind of measurement uncertainties. Appropriate equipment and procedures have to be used by trained and authorized personnel in the calibration process. Almost overwhelming importance was given to traceability. The concept of traceability includes different organizations, documents, techniques and measurements within a large and diverse measurement community. It is necessary to be systematic in order to interact with each other or with our clients.
Modern metrological notions normally link the topics of measurement traceability, quality assurance programs etc, to the topics of measurement uncertainty. One of essential components of all uncertainty budgets is the employment of calibrated standards or instruments. The calibration process transfers a reference value, usually an International System (IS) unit, to the instrument/artifact under calibration establishing the unbroken chain of comparisons required for traceability.
Whether they are simple devices or high-tech systems nobody can be sure. Since calibration is the only process that determines the measurement capabilities of the instruments, they normally have to be calibrated.