Repeatability
Repeatability refers to the closeness of agreement between successive measurements of the same quantity, taken under specified, identical conditions. In most contexts, this means the same instrument, the same operator, the same location, and a short time interval between measurements. Repeatability focuses on the precision of the measurement process itself rather than external changes.
The concept is distinguished from reproducibility, which concerns variation when measurements are made under changed conditions
Assessing repeatability typically involves taking multiple measurements of a single part or standard under the same
Factors that influence repeatability include instrument precision, sensor drift, operator technique, fixture or setup consistency, sample
Relation to accuracy: repeatability is a measure of precision—how close repeated measurements are to each other—rather