MY OWN SIMPLE NOTE CHAPTER 1 : INTRODUCTION TO ENGINEERING METROLOGY

LEARNING OBJECTIVES OF THE CHAPTER: 

1.         Provide a basic understanding on Metrology principles.

2.         Provide knowledge on international measuring units; the SI unit.

3.         Expose the measurement standard, measurement processes and measurement errors.

1.1 DEFINATION

•            In general, Metrology is a scientific study of measurement.

Metrology is a very broad field and may be divided into three subfields:

·         Scientific or fundamental metrology

       concerns the establishment of measurement units, unit systems, the development of new measurement methods, realisation of measurement standards and the transfer of traceability from these standards to users in industry. 

·         Applied or industrial metrology

      concerns the application of measurement science to manufacturing and other processes and their use in society, ensuring the suitability of measurement instruments, their calibration and quality control of measurements. 

·         Legal metrology 

      concerns regulatory requirements of measurements and measuring instruments for the protection of health, public safety, the environment, enabling taxation, protection of consumers and fair trade.