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Precision engineering is a subdiscipline of
euspen - European Society for Precision Engineering and Nanotechnology
JSPE- The Japan Society for Precision Engineering
DSPE - Dutch Society for Precision Engineering
SPETA - Singapore Precision Engineering and Technology Association
''Precision Engineering'', the Journal of the International Societies for Precision Engineering and Nanotechnology
{{Authority control Mechanical engineering
Precision Engineering Centre at Cranfield UniversityHistory of Precision Engineering
Precision engineering is a subdiscipline of electrical engineering
Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems which use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the l ...
, software engineering, electronics engineering
Electronics engineering is a sub-discipline of electrical engineering which emerged in the early 20th century and is distinguished by the additional use of active components such as semiconductor devices to amplify and control electric current f ...
, mechanical engineering, and optical engineering concerned with designing machines, fixtures, and other structures that have exceptionally low tolerances
Engineering tolerance is the permissible limit or limits of variation in:
# a physical dimension;
# a measured value or physical property of a material, manufacturing, manufactured object, system, or service;
# other measured values (such as t ...
, are repeatable, and are stable over time. These approaches have applications in machine tools, MEMS, NEMS, optoelectronics design, and many other fields.
Overview
Professors Hiromu Nakazawa and Pat McKeown provide the following list of goals for precision engineering: # Create a highly precise movement. # Reduce the dispersion of the product's or part's function. # Eliminate fitting and promote assembly, especially automatic assembly. # Reduce the initial cost. # Reduce the running cost. # Extend the life span. # Enable the design safety factor to be lowered. # Improve interchangeability of components so that corresponding parts made by other factories or firms can be used in their place. # Improve quality control through higher machine accuracy capabilities and hence reduce scrap, rework, and conventional inspection. # Achieve a greater wear/fatigue life of components. # Make functions independent of one another. # Achieve greater miniaturization and packing densities. # Achieve further advances in technology and the underlying sciences.Venkatesh, V. C. and Izman, Sudin, ''Precision Engineering'', Tata McGraw-Hill Publishing Company Limited, 2007, page 6.Technical Societies
* American Society for Precision Engineeringeuspen - European Society for Precision Engineering and Nanotechnology
JSPE- The Japan Society for Precision Engineering
DSPE - Dutch Society for Precision Engineering
SPETA - Singapore Precision Engineering and Technology Association
See also
* Abbe error *Accuracy and precision
Accuracy and precision are two measures of ''observational error''.
''Accuracy'' is how close a given set of measurements ( observations or readings) are to their ''true value'', while ''precision'' is how close the measurements are to each oth ...
* Flexures
* Kinematic coupling
* Measurement uncertainty
In metrology, measurement uncertainty is the expression of the statistical dispersion of the values attributed to a measured quantity. All measurements are subject to uncertainty and a measurement result is complete only when it is accompanied by ...
* Kinematic determinacy
References
External links
''Precision Engineering'', the Journal of the International Societies for Precision Engineering and Nanotechnology
{{Authority control Mechanical engineering
Precision Engineering Centre at Cranfield University