1.1 Measurement technology: background and development Historical background kNowledge acquisition often begins with measurement MEasurement science(metrology )was generated and developed with the development of human society dEarly measurements >Length(distance), time, area and weight, etc❖ Historical background ❑Knowledge acquisition often begins with measurement. ❑Measurement science (metrology) was generated and developed with the development of human society. ❑Early measurements: ➢Length (distance), time, area and weight, etc. 1.1 Measurement technology: background and development