Electromechanics

نوشته شده در موضوع تولید انرژی رایگان در 15 نوامبر 2016

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In engineering, electromechanics[1][2] combines electrical and automatic processes and procedures drawn from electrical engineering and automatic engineering. Electrical engineering in this context also encompasses wiring engineering.

Devices that lift out electrical operations by regulating relocating tools are famous as electromechanical. Strictly speaking, a manually operated switch is an electromechanical component, though a tenure is customarily accepted to impute to inclination that engage an electrical vigilance to emanate automatic movement, or automatic transformation to emanate an electric signal. Often involving electromagnetic beliefs such as in relays, that concede a voltage or stream to control other, customarily removed circuit voltage or stream by mechanically switching sets of contacts, and solenoids, by that a voltage can induce a relocating linkage as in solenoid valves. Piezoelectric inclination are electromechanical, though do not use electromagnetic principles. Piezoelectric inclination can emanate sound or quivering from an electrical vigilance or emanate an electrical vigilance from sound or automatic vibration.

Before a growth of difficult electronics, electromechanical inclination were widely used in difficult systems subsystems, including electric typewriters, teleprinters, really early radio systems, and a really early electromechanical digital computers.

History of electromechanics[edit]

Relays originated with telegraphy as electromechanical inclination used to renovate telegram signals. In 1885, Michael Pupin during Columbia University taught mathematical production and electromechanics until 1931.[3]

The Strowger switch, a Panel switch, and identical ones were widely used in early programmed write exchanges. Crossbar switches were initial widely commissioned in a center 20th century in Sweden, a United States, Canada, and Great Britain, and these fast widespread to a rest of a universe – generally to Japan. The electromechanical radio systems of a late 19th century were reduction successful.

Electric typewriters developed, adult to a 1980s, as “power-assisted typewriters”. They contained a singular electrical component, a motor. Where a keystroke had formerly changed a typebar directly, now it intent automatic linkages that destined automatic appetite from a engine into a typebar. This was also loyal of a after IBM Selectric. At Bell Labs, in a 1940s, a Bell Model V mechanism was developed. It was an electromechanical relay-based device; cycles took seconds. In 1968 electromechanical systems were still underneath critical care for an aircraft moody control computer, until a device formed on vast scale formation wiring was adopted in a Central Air Data Computer.

Modern practice[edit]

Beginning in a final third of a century, many apparatus that for many of a 20th century would have used electromechanical inclination for control, has come to use reduction costly and some-more arguable integrated microcontroller circuits containing eventually a few million transistors, and a module to lift out a same charge by logic, with electromechanical components usually where relocating parts, such as automatic electric actuators, are a requirement. Such chips have transposed many electromechanical devices, since any indicate in a complement that contingency rest on automatic transformation for correct operation will have automatic wear and eventually fail. Properly designed electronic circuits but relocating tools will continue to work scrupulously roughly indefinitely and are used in many elementary feedback control systems, and seem in outrageous numbers in all from trade lights to soaking machines.

As of 2010, approximately 16,400 people work as electro-mechanical technicians in a US, about 1 out of each 9000 workers. Their median annual salary is about 50% some-more than a median annual salary over all occupations. [4]

See also[edit]

Further reading[edit]

  • A initial march in electromechanics. By Hugh Hildreth Skilling. Wiley, 1960.
  • Electromechanics: a initial march in electromechanical appetite conversion, Volume 1. By Hugh Hildreth Skilling. R. E. Krieger Pub. Co., Jan 1, 1979.
  • Electromechanics and electrical machinery. By J. F. Lindsay, M. H. Rashid. Prentice-Hall, 1986.
  • Electromechanical suit devices. By Hi-Dong Chai. Prentice Hall PTR, 1998.
  • Mechatronics: Electromechanics and Contromechanics. By Denny K. Miu. Springer London, Limited, 2011.

References and notes[edit]

General

  • Davim, J. Paulo, editor (2011) Mechatronics, John Wiley Sons ISBN 978-1-84821-308-1 .
  • Furlani, Edward P. (August 15, 2001). Permanent Magnet and Electromechanical Devices: Materials, Analysis and Applications. Academic Press Series in Electromagnetism. San Diego: Academic Press. ISBN 0-12-269951-3. OCLC 47726317. 
  • Krause, Paul C.; Wasynczuk, Oleg (1989). Electromechanical Motion Devices. McGraw-Hill Series in Electrical and Computer Engineering. New York: McGraw-Hill. ISBN 0-07-035494-4. OCLC 18224514. 

Citations

  1. ^ Course in Electro-mechanics, for Students in Electrical Engineering, 1st Term of 3d Year, Columbia University, Adapted from Prof. F.E. Nipher’s “Electricity and Magnetism”. By Fitzhugh Townsend. 1901 .
  2. ^ The Elements of Electricity, “Part V. Electro-Mechanics.” By Wirt Robinson. John Wiley sons, Incorporated, 1922.
  3. ^ History of Science in a United States. By Marc Rothenberg. 2012.
  4. ^ Bureau of Labor Statistics, U.S. Department of Labor, Occupational Outlook Handbook, 2012-13 Edition, Electro-mechanical Technicians, on a Internet during http://www.bls.gov/ooh/architecture-and-engineering/electro-mechanical-technicians.htm (visited Aug 23, 2013).

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Interdisciplinarity

  • List of engineering branches
  •  Category:Engineering
  •   Engineering portal

Article source: https://en.wikipedia.org/wiki/Electromechanical

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