radios in the uk that were not portable continued to be referred to as wireless sets into the 1960s. the term was revived in the 1980s and 1990s mainly to distinguish digital devices that communicate without wires, such as the examples listed in the previous paragraph, from those that require wires or cables.
fly-by-wire fbw is a system that replaces the conventional manual flight controls of an aircraft with an electronic interface. the movements of flight controls are converted to electronic signals transmitted by wires hence the fly-by-wire term and flight control computers determine how to move the actuators at each control surface to provide the ordered response.
network planning and design is an iterative process, encompassing topological design, network-synthesis, and network-realization, and is aimed at ensuring that a new telecommunications network or service meets the needs of the subscriber and operator. the process can be tailored according to each new network or service.
mains electricity as it is known in the uk and some parts of canada; us terms include utility power, grid power, domestic power and wall power; citation needed in much of canada it is known as hydro is the general-purpose alternating-current ac electric power supply. it is the form of electrical power that is delivered to homes and businesses, and it is the form of electrical power that .
electrical engineering is a technical discipline concerned with the study, design and application of equipment, devices and systems which use electricity, electronics, and electromagnetism.it emerged as an identified activity in the latter half of the 19th century after commercialization of the electric telegraph, the telephone, and electrical power generation, distribution and use.
electrical telegraphy in the united kingdom led the world in the first half of the nineteenth century.telegraphy is the sending of textual messages by human operators using symbolic codes. electrical telegraphy sends these messages over conducting wires, often incorporating a telegram service the delivery of telegraph messages by messenger from the telegraph office .
electrical wiring is an electrical installation of cabling and associated devices such as switches, distribution boards, sockets, and light fittings in a structure.. wiring is subject to safety standards for design and installation. allowable wire and cable types and sizes are specified according to the circuit operating voltage and electric current capability, with further restrictions on the .
in the latest guidelines for electrical wiring in residential buildings 2008 handbook, the overall residential wiring need to be protected by a residual current device of sensitivity not exceeding 100 ma. additionally, all power sockets need to be protected by a residual current device of sensitivity not exceeding 30 ma and all equipment in .
the auxiliary wire can be of a more conductive but less wear-resistant metal, increasing transmission efficiency. earlier dropper wires provided physical support of the contact wire without joining the catenary and contact wires electrically. modern systems use current-carrying droppers, eliminating the need for separate wires.
however, they require a bulky power source for the current surges required. the extremely short rise times are usually achieved by discharging a low- inductance , high-capacitance, high-voltage capacitor e.g., oil-filled, mylar-foil, or ceramic through a suitable switch spark gap , thyratron , krytron , etc. into the bridge wire.
most of the early electrical systems required multiple wires ronalds' system was an exception , but the system developed in the united states by morse and vail was a single-wire system. this was the system that first used the soon-to-become-ubiquitous morse code.
according to the government accountability office gao , military specifications 'describe the physical and/or operational characteristics of a product', while military standards 'detail the processes and materials to be used to make the product.' military handbooks, on the other hand, are primarily sources of compiled information and/or .
oshkosh defense confirms intent to bid for canada's msvs smp mission-proven defence vehicles, canada-wide network of suppliers are to be cornerstones of the oshkosh submission oshkosh,
this glossary of electrical and electronics engineering pertains specifically to electrical and electronics engineering. . in the context of electric power wiring. ampere the si unit of electrical current. . a measure of the work required to move a unit electric charge in an electric field. electric power conversion
an electrician is a tradesman specializing in electrical wiring of buildings, transmission lines, stationary machines, and related equipment. electricians may be employed in the installation of new electrical components or the maintenance and repair of existing electrical infrastructure. electricians may also specialize in wiring ships, airplanes, and other mobile platforms, as well as data .
ipc, the association connecting electronics industries, is a trade association whose aim is to standardize the assembly and production requirements of electronic equipment and assemblies. it was founded in 1957 as the institute of printed circuits. its name was later changed to the institute for interconnecting and packaging electronic circuits .
a vacuum tube, an electron tube, or valve british usage or, colloquially, a tube north america , is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied.. the type known as a thermionic tube or thermionic valve uses the phenomenon of thermionic emission of electrons from a heated cathode and is used for a .
a cable harness, also known as a wire harness, wiring harness, cable assembly, wiring assembly or wiring loom, is an assembly of electrical cables or wires which transmit signals or electrical power. the cables are bound together by a durable material such as rubber, vinyl, electrical tape, conduit, a weave of extruded string, or a combination thereof.
bent pin analysis is a special kind of failure mode and effect analysis fmea performed on electrical connectors, and by extension it can also be used for fmea of interface wiring.this analysis is generally applicable to mission-critical and safety-critical systems and is particularly applicable to aircraft, where failures of low-tech items such as wiring can and sometimes do affect safety.
mil-std-810, environmental engineering considerations and laboratory tests, is a united states military standard that emphasizes tailoring an equipment's environmental design and test limits to the conditions that it will experience throughout its service life, and establishing chamber test methods that replicate the effects of environments on the equipment rather than imitating the .
in metallurgy and materials science, annealing is a heat treatment that alters the physical and sometimes chemical properties of a material to increase its ductility and reduce its hardness, making it more workable.it involves heating a material above its recrystallization temperature, maintaining a suitable temperature for an appropriate amount of time and then cooling.