Metrology | Metrology

Key Words: precision, Accuracy, process control, high definition metrology, reliability, traceability, calibration, measuring microscopes, vision measuring systems, non contact measuring, coordinate measuring, optical comparator, autocollimator, digital height gauge

Definition:The science of measurement

TECHNOLOGY:

Metrology is a fundamental enabling science in many different disciplines (physics, chemistry, biology, medicine, materials science, industry, manufacturing etc) providing the means to accurately characterize any item in terms of measurable parameters (e.g. size, dimensions, frequency, temperature, hardness, mass, speed, acceleration etc). This information then allows items to be compared, to be manufactured to specification and accurately reproduced.

Metrology is dependent on:

Internationally defined and accepted standard units of measurement (for example the International System of Units (SI system) of units and a host of other discipline-, application- and industry-specific parameters

Traceability in documenting the accuracy and reliability of a measurement tool (for example, documented proof that a measurement tool has been calibrated, that it is performing to the accepted, defined standard, and that it is capable of measuring the required parameter - for example, a ruler calibrated in mm would not be suitable for measuring at the micrometer scale).

APPLICATIONS:

Metrology is applied in almost every aspect of every day life from ensuring that a wrist watch keeps time to an acceptable tolerance, to ensuring that every component in a complex machine, such as an airliner or computer, is manufactured to fit precisely with other components and perform the function for which it is intended. Microscopy is an essential tool in the measurement of very small items. It is employed widely in manufacturing, electronic, industrial, semiconductor and material sciences applications to enable accurate measurement in the submicron and micron scale.

MICROSCOPE CONFIGURATION:

Nikon has a number of optical measuring instruments for a variety of applications including measuring microscopes, optical comparators, vision measuring systems, autocollimators and digital height gauges. Please consult your local Nikon representative for advice on systems suited to your needs.