The Process Of 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.

Calibration is a process where you can compare measuring instrument with a measurement standard to facilitate the relation between the values indicated by the instrument and those of the standard.

Calibration involves comparing of a measurement device that is unknown, against the better standard. Calibration is often considered as something that includes the process of adjusting the output/indication on a measurement instrument to meet the value of the applied standard within accuracy. Let's take an example of thermometer that indicates errors. This indication of errors in thermometer can be corrected and adjusted using calibration constants. As a result, it will show the true temperature in Celsius at specific points on the scale. In computing, by way of proper calibration of an interactive white board pen or other input method the relation between the physical pen position and the position of the cursor on the screen is established.

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.

Some concepts such as measurement traceability, quality assurance programs etc. have a sort of linkage to the topics of measurement uncertainty because of the influence of modern metrological notions. The use of calibrated standards or instruments can rightly be called a necessary component of all uncertainty budgets. The processes of calibration transfers a reference value, that is an International System (IS) unit, to the instrument/artifact under calibration and initiates the unbroken chain of comparisons required for traceability.

It is little bit confusing to say whether they are simple devices or up to date systems. They normally have to be calibrated, because calibration is the only process that determines the measurement capabilities of the instruments.

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This article is published by RS Calibration Services, Inc. in public interest. RS Calibration is one of the leading California Calibration Services providers. They are also one of the leading California Calibration Companies.

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