Iri |
https://w3id.org/emmo/domain/characterisation-methodology/chameo#CalibrationProcess |
Annotations |
Preflabel |
CalibrationProcess |
Elucidation |
Sequence of operations/actions that are needed to convert the initial signal (as produced by the detector) into a meaningful and useable raw data. |
Comment |
Usually the calibration process involve a reference sample (with pre-defined, specific, and stable physical characteristics and known properties), in order to extract calibration data. In this way, the accuracy of the measurement tool and its components (for example the probe) will be evaluated and confirmed. |
Comment |
Operation performed on a measuring instrument or a measuring system that, under specified conditions 1. establishes a relation between the values with measurement uncertainties provided by measurement standards and corresponding indications with associated measurement uncertainties and 2. uses this information to establish a relation for obtaining a measurement result from an indication NOTE 1 The objective of calibration is to provide traceability of measurement results obtained when using a calibrated measuring instrument or measuring system. NOTE 2 The outcome of a calibration may be expressed by a statement, calibration function, calibration diagram, calibration curve, or calibration table. In some cases, it may consist of an additive or multiplicative correction of the indication with associated measurement uncertainty. NOTE 3 Calibration should not be confused with adjustment of a measuring system, often mistakenly called “selfcalibration”, nor with verification of calibration. Calibration is sometimes a prerequisite for verification, which provides confirmation that specified requirements (often maximum permissible errors) are met. Calibration is sometimes also a prerequisite for adjustment, which is the set of operations carried out on a measuring system such that the system provides prescribed indications corresponding to given values of quantities being measured, typically obtained from measurement standards. NOTE 4 Sometimes the first step alone of the operation mentioned in the definition is intended as being calibration, as it was in previous editions of this Vocabulary. The second step is in fact required to establish instrumental uncertainty for the measurement results obtained when using the calibrated measuring system. The two steps together aim to demonstrate the metrological traceability of measurement results obtained by a calibrated measuring system. In the past the second step was usually considered to occur after the calibration. NOTE 5 A comparison between two measurement standards may be viewed as a calibration if the comparison is used to check and, if necessary, correct the value and measurement uncertainty attributed to one of the measurement standards.
-- International Vocabulary of Metrology(VIM) |
Comment |
Sequence of operations/actions that are needed to convert the initial signal (as produced by the detector) into a meaningful and useable raw data. |
Comment |
Usually the calibration process involve a reference sample (with pre-defined, specific, and stable physical characteristics and known properties), in order to extract calibration data. In this way, the accuracy of the measurement tool and its components (for example the probe) will be evaluated and confirmed. |
Definition |
Operation performed on a measuring instrument or a measuring system that, under specified conditions 1. establishes a relation between the values with measurement uncertainties provided by measurement standards and corresponding indications with associated measurement uncertainties and 2. uses this information to establish a relation for obtaining a measurement result from an indication NOTE 1 The objective of calibration is to provide traceability of measurement results obtained when using a calibrated measuring instrument or measuring system. NOTE 2 The outcome of a calibration may be expressed by a statement, calibration function, calibration diagram, calibration curve, or calibration table. In some cases, it may consist of an additive or multiplicative correction of the indication with associated measurement uncertainty. NOTE 3 Calibration should not be confused with adjustment of a measuring system, often mistakenly called “selfcalibration”, nor with verification of calibration. Calibration is sometimes a prerequisite for verification, which provides confirmation that specified requirements (often maximum permissible errors) are met. Calibration is sometimes also a prerequisite for adjustment, which is the set of operations carried out on a measuring system such that the system provides prescribed indications corresponding to given values of quantities being measured, typically obtained from measurement standards. NOTE 4 Sometimes the first step alone of the operation mentioned in the definition is intended as being calibration, as it was in previous editions of this Vocabulary. The second step is in fact required to establish instrumental uncertainty for the measurement results obtained when using the calibrated measuring system. The two steps together aim to demonstrate the metrological traceability of measurement results obtained by a calibrated measuring system. In the past the second step was usually considered to occur after the calibration. NOTE 5 A comparison between two measurement standards may be viewed as a calibration if the comparison is used to check and, if necessary, correct the value and measurement uncertainty attributed to one of the measurement standards.
-- International Vocabulary of Metrology(VIM) |
Example |
In nanoindentation, the electrical signal coming from capacitive displacement gauge is converted into a real raw-displacement signal after using a proper calibration function (as obtained by the equipment manufacturer). Then, additional calibration procedures are applied to define the point of initial contact and to correct for instrument compliance, thermal drift, and indenter area function to obtain the real useable displacement data. |
Label |
CalibrationProcess |
Formal description |
Subclass Of |
CharacterisationProcedure |
Subclass Of |
hasTemporaryParticipant some ReferenceSample |
Subclass Of |
hasInput some MeasurementParameter |
Subclass Of |
hasOutput some CalibrationData |
Subclass Of |
hasTemporaryParticipant exactly 1 CharacterisationMeasurementInstrument |