In engineering, electromechanics combines the sciences of electromagnetism of electrical engineering and mechanics. Engineering is the Discipline and Profession of applying technical and scientific Knowledge and Science (from the Latin scientia, meaning " Knowledge " or "knowing" is the effort to discover, and increase human understanding Electromagnetism is the Physics of the Electromagnetic field: a field which exerts a Force on particles that possess the property of Electrical engineering, sometimes referred to as electrical and electronic engineering, is a field of Engineering that deals with the study and application of Mechanical Engineering is an Engineering discipline that involves the application of principles of physics for analysis Design, Manufacturing Mechatronics is the discipline of engineering that combines mechanics, electronics and information technology (software engineering). Mechatronics (or Mecha nical and Elec' tronics' Engineering) is the combination of Mechanical engineering, Electronic engineering Electronics refers to the flow of charge (moving Electrons through Nonmetal conductors (mainly Semiconductors, whereas electrical Information technology ( IT) as defined by the Information Technology Association of America (ITAA is "the study design development implementation support Software engineering is the application of a systematic disciplined quantifiable approach to the development operation and maintenance of Software.

Contents 1 Explanation 2 History 3 Modern practice 4 See also 5 External links 6 Printed references

Explanation

Electromechanical devices are those that combine electrical and mechanical parts. These include electric motors, loudspeakers, some fire alarms and mechanical devices powered by them, such as calculators and adding machines; switches, solenoids, relays, crossbar switches and stepping switches. An electric motor uses Electrical energy to produce Mechanical energy. For the Marty Friedman album see Loudspeaker (album A loudspeaker, speaker, or speaker system is an electroacoustical An automatic fire alarm system is designed to detect the unwanted presence of fire by monitoring environmental changes associated with combustion A calculator is device for performing mathematical calculations distinguished from a Computer by having a limited problem solving ability and an interface optimized for interactive See Adding machine (disambiguation for other uses of this term A switch is a mechanical device used to connect and disconnect an electric Circuit at will A solenoid is a three-dimensional Coil. In Physics, the term solenoid refers to a loop of wire often wrapped around a Metallic core which A relay is an electrical Switch that opens and closes under the control of another Electrical circuit. A crossbar switch (also known as cross-point switch, crosspoint switch, or matrix switch) is a Switch connecting multiple inputs to multiple In electrical controls a stepping switch is an electromechanical device which allows an input connection to be connected to one of a number of possible output connections under

History

Early on, "relays" originated with telegraphy as electromechanical devices used to regenerate telegraph signals. A relay is an electrical Switch that opens and closes under the control of another Electrical circuit.

The Strowger switch, Panel switch and similar ones were widely used in early automated telephone exchanges. The Strowger switch, also known as Step-by-Step or SXS, is an early electromechanical telephone switching system invented by Almon Brown Strowger. The panel switching system was an early type of Automatic telephone exchange, first put into urban service by the Bell System in the 1920s and removed during the 1970s In the field of Telecommunications, a telephone exchange or telephone switch is a system of electronic components that connects telephone calls Crossbar switchs were first widely installed in the middle 20th century in both the United States and Britain, and quickly spread to the rest of the world. A crossbar switch (also known as cross-point switch, crosspoint switch, or matrix switch) is a Switch connecting multiple inputs to multiple The United States of America —commonly referred to as the The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom, the UK or Britain,is a Sovereign state located

Paul Nipkow proposed and patented the first electromechanical television system in 1885. Paul Julius Gottlieb Nipkow ( 22 August 1860 &ndash 24 August 1940) was a German Technician and Inventor. Year 1885 ( MDCCCLXXXV) was a Common year starting on Thursday (link will display the full calendar of the Gregorian calendar (or a Common Electrical typewriters developed, up to the 1980s, as "power-assisted typewriters. A typewriter is a mechanical or Electromechanical device with a set of "keys" that when pressed cause characters to be printed on a medium " They contained a single electrical component in them, the motor. Where the keystroke had previously moved a typebar directly, now it engaged mechanical linkages that directed mechanical power from the motor into the typebar. This was also true of the forthcoming IBM Selectric. At Bell Labs, in the 1940s, the Bell Model V computer was developed. Bell Laboratories (also known as Bell Labs and formerly known as AT&T Bell Laboratories and Bell Telephone Laboratories) is the Research organization It was an electromechanical relay-based monster with cycle times in seconds. In 1968 Garrett Systems were invited to produce a digital computer to compete with electromechanical systems then under development for the main flight control computer in the US Navy's new F-14 Tomcat fighter. Garrett by Honeywell is the consumer brand of Honeywell Turbo Technologies a subsidiary of Honeywell Corporation.

Modern practice

Today, though, common items which would have used electromechanical devices for control, today use, less expensive and more effectively, a standard integrated circuit (containing a few million transistors) and write a computer program to carry out the same task through logic. Transistors have replaced almost all electromechanical devices, are used in most simple feedback control systems, and appear in huge numbers in everything from traffic lights to washing machines. A washing machine, or washer, is a machine designed to clean Laundry, such as Clothing, Towels and sheets The term is mostly applied

See also

• Linear feedback shift register
• Adding machine
• Kerrison Predictor
• Thermostat
• Automatic transmission system
• Power engineering
• Electric power conversion
• Torpedo Data Computer
• Power rating
• Stepping switch
• Robotic telescope
• Electricity meter
• Solenoid valve
• Relay
• Unit record equipment

External links

• Electromechanical Parts
• ElectroMechanical Database

Printed references

1. A linear feedback shift register (LFSR is a Shift register whose input bit is a linear function of its previous state See Adding machine (disambiguation for other uses of this term The Kerrison Predictor was one of the first fully-automated Anti-aircraft predictors, Fire-control systems which would attempt to Predict the A thermostat is a device for regulating the Temperature of a System so that the system's temperature is maintained near a desired setpoint An automatic transmission system (or occasionally automated transmission system, to avoid confusion with the Automatic transmission of an Automobile) is Power engineering, also called power systems engineering, is a subfield of Electrical engineering that deals with the generation, transmission In Electrical engineering, power conversion has a more specific meaning namely converting Electric power from one form to another The Torpedo Data Computer (TDC was an early Electromechanical Analog computer used for Torpedo fire-control on American In Electrical engineering, the power rating of a device is a guideline set by the manufacturer as a maximum power to be used with that device In electrical controls a stepping switch is an electromechanical device which allows an input connection to be connected to one of a number of possible output connections under A robotic telescope is an astronomical Telescope and detector system that makes Observations without the intervention of a Human. A solenoid valve is an Electromechanical Valve for use with Liquid or Gas controlled by running or stopping an Electric current A relay is an electrical Switch that opens and closes under the control of another Electrical circuit. Before the advent of electronic Computers, data processing was performed using electromechanical devices called unit record equipment, electric accounting machines Paul C. Krause and Oleg Wasynczuk, "Electromechanical Motion Devices", McGraw-Hill Series in Electrical and Computer Engineering (1989). ISBN-10: 0070354944.

2. Edward P. Furlani, "Permanent Magnet and Electromechanical Devices: Materials, Analysis and Applications", Academic Press Series in Electromagnetism (2001). ISBN 0-12-269951-3.

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