Calibration is the comparison of a measuring instrument against an accurate standard to determine any deviation.
Calibration equipment is an accurate standard device which is used to check accuracy of the test equipment (Temperature Sensors like thermocouple, RTDs, Pyrometers). Calibration of equipment is done to control errors so that the equipment(Sensor) gives reliable and acceptable measurement.
- Reference Standard is selected which value is known.
- Measure the test equipment on the basis of reference standard
- A functional relationship is established between measured values and already known values called as calibration curve.
- With reference to this curve the corrections of all measurements are done by taking the inverse of the calibration curve.