Why is it important to assure the quality of a measurement?
- Measurement is a process which checks whether something is correct within a set of specified limits, e.g. a component part of an aircraft engine.
- A decision on the results is based on whether the device being measured is inside or outside those limits, e.g. to accept or reject the part measured when assembling the engine.
- Imagine the above component is outside the specified limits but the measuring instrument shows that it is within these limits.
- The decision taken based on the measurement result is thus to accept the component as good and use it in the engine assembly.
- One can imagine the risk posed to travellers if above situation happens.
- Thus, measurements should only be carried out using calibrated measuring instruments.
