Copyright © Philip M. Parker, INSEAD. Terms of Use.
Definition: Generator |
GeneratorNoun1. An apparatus that produces a vapor or gas. 2. Engine that converts mechanical energy into electrical energy by electromagnetic induction. 3. Someone who originates or causes or initiates something; "he was the generator of several complaints". 4. An electronic device for producing a signal voltage. Source: WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. |
Date "generator" was first used in popular English literature: sometime before 1321. (references) |
Etymology: Generator \Gen"er*a`tor\, noun. [Latin]. (references) |
| Domain | Definition |
Computing | A routine which will produce a program to perform a specific version of some general operation by completing a predetermined framework with the details required for the. . . application. Source: European Union. (references) |
| A routine which produces a program to carry out a specific version of a general operation; it does so by completing a predetermined skeleton program with the details or parameters of the specific application. Source: European Union. (references) | |
Electrical Engineering | A circuit that generates a desired repetitive or nonrepetitive waveform, such as a pulse generator. Source: European Union. (references) |
| The machine which converts mechanical power into electrical power. Source: European Union. (references) | |
Energy | A device for converting mechanical energy to electrical energy. (references) |
Environment | 1. A facility or mobile source that emits pollutants into the air or releases hazardous waste into water or soil. 2. Any person, by site, whose act or process produces regulated medical waste or whose act first causes such waste to become subject to regulation. Where more than one person (e.g. doctors with separate medical practices) are located in the same building, each business entity is a separate generator. (references) |
Mechanical Engineering | That part of an absorption machine in which the refrigerant vapour is driven off by heat. Source: European Union. (references) |
Medicine | Any system incorporating a fixed parent radionuclide from which is produced a daughter radionuclide which is to be removed by elution or by any other method and used in a radiopharmaceutical. Source: European Union. (references) |
Mining | A. A source of electricity, esp. one that transforms heat or mechanical work directly into electric energy, as opposed to a voltaic battery b. A vessel, chamber or machine in which the generation of a gas iseffected, as by chemical action. (references) |
Physics | Part of a spark erosion plant for generating the energy pulses that are separated from each other in time. Source: European Union. (references) |
Source: compiled by the editor from various references; see credits. | |
(From Wikipedia, the free Encyclopedia)
An electrical generator is a device that produces electrical energy from a mechanical energy source. The process is known as electricity generation.
Before the connection between magnetism and electricity was discovered, generators used electrostatic principles. The Wimshurst machine used electrostatic induction or "influence". The Van de Graaff generator used the triboelectric effect to separate electric charges using the friction between insulators. Electrostatic generators are inefficient and are useful only for scientific experiments requiring high voltages.
In 1831-1832 Michael Faraday discovered that a potential difference is generated between the ends of an electrical conductor that moves perpendicular to a magnetic field. He built the first electromagnetic generator based on this effect, using a copper disc rotating between the poles of a horseshoe magnet. It produced a small direct current.
The dynamo was the first electrical generator capable of delivering power for industry, and is still the most important generator in use in the 21st century. The dynamo uses electromagnetic principles to convert mechanical rotation into an alternating electric current.
The first dynamo based on Faraday's principles was built in 1832 by Hippolyte Pixii, a French instrument maker. It used a permanent magnet which was rotated by a crank. The spinning magnet was positioned so that its north and south poles passed by a piece of iron wrapped with wire. Pixii found that the spinning magnet produced a pulse of current in the wire each time a pole passed the coil. Furthermore, the north and south poles of the magnet induced currents in opposite directions. By adding a commutator, Pixii was able to convert the alternating current to direct current.
In 1866 Werner von Siemens invented a self-excited generator that used an electromagnet instead of a permanent magnet. In 1867 Cooke and Wheatstone produced a new version of the Pixii design, also replacing the spinning magnet with a spinning coil that acted as an electromagnet. Electromagnets could develop a stronger magnetic field, and thus a stronger electric output. In addition, electromagnets provided the ability to regulate the power generated, by adjusting the power fed into them. Of course with the coil now turning, it was somewhat more difficult to take the power out of the circuit, but a well designed commutator was all that was needed.
However, both of these designs suffered from a similar problem: they induced "spikes" of current followed by none at all. Antonio Pacinotti, an Italian scientist, fixed this by replacing the spinning coil with a toroidal one, which he created by wrapping an iron ring. This meant that some part of the coil was continually passing by the magnets, smoothing out the current. Zénobe Gramme reinvented this design a few years later when designing the first commercial power plants, in Paris in the 1870s. His design is now known as the Gramme dynamo. Various versions and improvements have been made since then, but the basic concept of a spinning endless loop of wire remains at the heart of all modern dynamos.
It is important to understand that the generator creates an electric current, but does not create electric charge, which is already present in the conductive wire of its windings. It is somewhat analogous to a water pump, which creates a flow of water but does not create the water itself.
Other types of electrical generator exist, based on other electrical phenomena such as piezoelectricity, and magnetohydrodynamics.
The construction of a dynamo is similar to that of an electric motor, and it is possible to build a machine that functions as either.
See also distributed generation.
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Electrical generator."
(From Wikipedia, the free Encyclopedia)
In abstract algebra, a generating set of a group is a subset S of a group G, such that every element of G can be expressed as the product of finitely many elements of S and their inverses.More generally, if S is a subset of a group G, then <S> is the smallest subgroup of G containing every element of S; equivalently, <S> is the subgroup of all elements of G that can be expressed as the finite product of elements in S and their inverses.
If G = <S>, then we say S generates G; and the elements in S are called generators.
If S is the empty set, then <S> is the trivial group, since we consider the empty product to be the identity.
When there is only a single element x in S, <S> is usually written as
. In this case, generates the cyclic subgroup of the powers of x. If S is finite, then a group G = <S> is called finitely generated. The structure of finitely generated abelian groups in particular is easily described. Many theorems that are true for finitely generated groups fail for groups in general.
Every finite group is finitely generated since
= G. The integers under addition are an example of an infinite group which is finitely generated by both <1> and <-1>, but the group of rationals under addition cannot be finitely generated. No uncountable group can be finitely generated. Different subsets of the same group can be generating subsets; for example, if p and q are integers with gcd(p,q) = 1, then <{p,q}> also generates the group of integers under addition.
The most general group generated by a set S is the group freely generated by S. Every group generated by S is isomorphic to a factor group of this group; a feature which is utilized in the expression of a group's presentation.
An interesting companion topic is that of non-generators. An element x of the group G is a non-generator if every set S containing x that generates G, still generates G when x is removed from S. In the integers with addition, the only non-generator is 0. The set of all non-generators forms a subgroup of G, the Frattini subgroup.
See Also:
- Presentation of a group
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Generating set of a group."
(From Wikipedia, the free Encyclopedia)
A generator refers to several things:
- an electrical generator
- the generating set of a group
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Generator."
(From Wikipedia, the free Encyclopedia)
Generator is a name of an album by a punk rock group called Bad Religion.
Tracks
- Generator
- Too Much To Ask
- No Direction
- Tomorrow
- Two Babies In The Dark
- Heaven Is Falling
- Atomic Garden
- The Answer
- Fertile Crescent
- Chimaera
- Only Entertainment
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Generator (album)."
| The following table is compiled from various sources, across various languages. When English abbreviations or acronyms come from a non-English source, this is noted. | |||
| Entry | Source | Expression | Field |
| GET | English | Generator Environmental Tester | Environment |
Source: compiled by the editor, based on several corpora (additional references). | |||
Synonyms: GeneratorSynonyms: author (n), source (n). (additional references) |
| Context | Synonyms within Context (source: adapted from Roget's Thesaurus). |
Producer | Noun: producer, originator, inventor, author, founder, generator, mover, architect, creator, prime mover; maker; (agent); prime mover. |
| Source: adapted from Roget's Thesaurus. | |
| Domain | Usage | |
Screenplays | It was I who allowed the Alliance to know the location of the shield generator! It is quite safe from your pitiful little band (Star Wars: Episode VI - Return of the Jedi; writing credit: George Lucas; Lawrence Kasdan) He says the scouts are going to show us the quickest way to the shield generator. (Star Wars: Episode VI - Return of the Jedi; writing credit: George Lucas; Lawrence Kasdan) Once the phaztillon generator is repaired, we'll dose ourselves and hope your living ship doesn't interfere with the non-thermal dimensional forces (Farscape; writing credit: Olivier Cauvin) Well, maybe you should buy an alcohol-powered generator, that way you could urinate into it every morning and have enough electricity for the whole day. (Tales from the Crypt; writing credit: Scott Nimerfro; Gilbert Adler) | |
Lyrics | You're an all night generator wrapped is stockings and a dress (Bad Medicine; performing artist: Bon Jovi) | |
Movie/TV Titles | Assembling a Generator (1904) Generator Gawl (1998) | |
Source: compiled by the editor from various references; see credits. | ||
| Domain | Title | ||
References |
| ||
Books |
| ||
Periodicals |
| ||
Theater & Movies | |||
Music |
| ||
High Tech |
| ||
Consumer Goods |
| ||
Source: compiled by the editor from various references; see credits. | |||
| Thumbnail | Description & Credit | Thumbnail | Description & Credit |
 | VRML Topographic Map Generator by Dave Pape. Credit: NASA. |  | Fathometer style tide gauge Fathometer, clock, batteries, and wind generator to charge batteries Installation by party off of PATHFINDER. Credit: Coast & Geodetic Survey Historical Image Collection. |
 | The first sunrays illuminating the generator exhaust at South Pole Station. Credit: Paths Less Taken - NOAA at the Ends of the Earth. |  | Polar night has arrived - geodesic dome silhouetted by bluish aurora australis Horizontal line emanating to right from geodesic dome is exhaust from generator. Credit: Paths Less Taken - NOAA at the Ends of the Earth. |
 | Stern-on view, taken off the Mare Island Navy Yard, California, on 26 October 1943. Note depth charge racks and smoke generator tanks at the ship's stern. Credit: NAVY. |  | Water turbine and electric generator at municipal power plant. Logan, Utah. Credit: Library of Congress. |
 | Lufkin, Texas. Southland paper mill. Turbo generator in the power house. Credit: Library of Congress. |  | Generator hall of the powerhouse, Chickamauga Dam, Tenn. Credit: Library of Congress. |
 | Eight generator units in the generator room of a new addition to TVA's hydroelectric plant at Wilson Dam, Sheffield vicinity, Ala. Credit: Library of Congress. |  | W.S. Fairchild, Lloyd Neck, Long Island. Generator. Credit: Library of Congress. |
Source: pictures compiled by the editor from various references; see picture credits. | |||
 |
| "Rust never sleeps 3" by Barry Edwards Commentary: "Old farm generator in Adams, TN home of the Bell Witch." |
Source: photographs selected by the editor, with permission from the photographers. |
| Subject | Topic | Quote |
Health | Electron beams, or e-beams, are produced in a different way. The e-beam is a stream of high energy electrons, propelled out of an electron gun. This electron gun apparatus is a larger version of the device in the back of a TV tube that propels electrons into the TV screen at the front of the tube, making it light up. This electron beam generator can be simply switched on or off. No radioactivity is involved. (references) | |
Business | Genesis Power is an electricity generator that provides 19% of New Zealand's total power generation. (references) | |
Proven Engineering Products, also a British company dominates the stand-alone wind generator market. (references) | ||
The generator will be fed by gas transported by a 1,350 kilometer pipeline from the south of Bolivia. (references) | ||
Economic History | Kazakhstan | Large consumers are allowed to purchase power supplies from the most competitive generator. (references) |
Ukraine | Almost 40+ACU- of the total heating energy generated is lost in transport from generator to consumer. (references) | |
Bangladesh | Short-term export prospects are good for transformers, treated wood poles, insulators, surge protectors, line tools, commercial diesel and gas generator sets, and spare parts for U.S. and U.S.-licensed turbines in government-run power plants. (references) | |
Travel | Guinea | The inadequate electric supply increases housing costs by adding generator and fuel costs. (references) |
Ghana | Although power rationing was over in 1999, the use of a stand-by generator is still strongly recommended. (references) | |
Worker Rights | Pakistan | Each facility also has its own water system, waste disposal system, generator for electricity, and transportation system. (references) |
Source: compiled by the editor from ICON Group International, Inc.; see credits. | ||
| "Generator" is generally used as a noun (singular) -- approximately 98.37% of the time. "Generator" is used about 430 times out of a sample of 100 million words spoken or written in English. Its rank is based on over 700,000 words used in the English language. Some parts-of-speech are not covered due to the samples used by the British National Corpus. (note: percents less than one-hundredth of one percent have been omitted) |
| Parts of Speech | Percent | Usage per 100 Million Words | Rank in English |
| Noun (singular) | 98.37% | 423 | 13,476 |
| Noun (common) | 0.93% | 4 | 175,879 |
| Noun (proper) | 0.7% | 3 | 202,518 |
| Total | 100.00% | 430 | N/A |
Source: compiled by the editor from several corpora; see credits.
Expressions using "generator": AC generator ♦ air cooler of generator ♦ alternating current generator ♦ application generator ♦ asynchronous generator ♦ back End Generator ♦ back End Generator Language ♦ data Address Generator ♦ direct current generator ♦ electric generator ♦ electricity generator ♦ electrostatic generator ♦ Gas generator ♦ Induction generator ♦ Knowledge INtensive Generator ♦ list program generator ♦ Mach Interface Generator ♦ motor generator ♦ parser generator ♦ photovoltaic generator ♦ program generator ♦ pulse generator ♦ random number generator ♦ recursive Macro Actuated Generator ♦ report generator ♦ report Program Generator ♦ salient pole generator ♦ ship's steam generator ♦ smoke generator ♦ special effects generator ♦ static pulse generator ♦ system generator ♦ turbine generator ♦ Twente Compiler Generator System ♦ Van de Graaff generator ♦ vibration generator ♦ Vickers'seabed generator ♦ vinegar generator ♦ wind generator. Additional references. | |
| Hypenated Usage | |
Ending with "generator": audio-generator, consciousness-generator, General Purpose Macro-generator, image-generator, packed-generator, steam-generator, turbo-generator. | |
| Source: compiled by the editor from various references; see credits. | |
| The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com. |
| Expression | Frequency per Day | Expression | Frequency per Day |
generator | 4,493 | credit card number generator | 268 |
honda generator | 1,869 | power generator | 234 |
name generator | 1,487 | generac generator | 228 |
key generator | 1,422 | rv generator | 208 |
portable generator | 702 | generator nickname | 202 |
credit card generator | 685 | cd craft generator key star | 202 |
electric generator | 638 | fantasy name generator | 187 |
cd key generator | 596 | generator key window xp | 187 |
wind generator | 547 | marine generator | 173 |
onan generator | 450 | band name generator | 171 |
coleman generator | 417 | emergency generator | 164 |
diesel generator | 409 | diablo 2 cd key generator | 159 |
electric generator repairing | 408 | kohler generator | 149 |
half life cd key generator | 362 | steam generator | 149 |
password generator | 361 | generator key xp | 143 |
ozone generator | 356 | gas generator | 142 |
rf signal generator | 319 | generator repair | 142 |
yamaha generator | 303 | meta tag generator | 136 |
cd counter generator key strike | 300 | mtv music generator | 130 |
random number generator | 289 | character generator | 126 |
| Source: compiled by the editor from various references; see credits. | |||
| Language | Translations for "generator"; alternative meanings/domain in parentheses. | |
Albanian | gjenerator (dynamo, producer), gazogjen (gas-producer, gazogene), prodhues (generative, manufacturer, producer, productive). (various references) | |
Arabic | مولد كهربائي (dynamo), مرجل (boiler, caldron, cauldron, copper, water heater), دينامو مولد كهربائي (dynamo). (various references) | |
Bulgarian | създател (artificer, author, constitutor, creator, former, founder, inventor, maker, molder, moulder, originator), генератор, производител (grower, maker, producer). (various references) | |
Chinese | 发电器. (various references) | |
Czech | generátor. (various references) | |
Danish | generator-aggregat (electric generator, generating set, generating unit, power generating set), generatoraggregat (electric generator, generating set, generating unit, power generating set), generator (electric generator, generating program, program generator, spark-erosion generator), koger (boiler, digester), dynamo-aggregat (electric generator, generating set, generating unit, power generating set). (various references) | |
Dutch | genereerprogramma (generating program, program generator), generatrice (generating line, generatrix), generator-aggregaat (electric generator, generating set, generating unit, power generating set), generator (boiler, effector, electric generator, spark-erosion generator), radioactieve koe, radioactieve generator, pulsgenerator, elektrische generator (electric generator), dynamo (direct current generator, Dynamo, electric generator), deel van een absorptiekoelmachine, aggregaat voor elektrische stroomopwekking (electric generator, generating set, generating unit, power generating set). (various references) | |
Farsi | مولدبرق , ژنراتور, زاینده (Zoogenic(Nous)), زایاد, دینام . (various references) | |
Finnish | generaattori (electric generator, spark-erosion generator). (various references) | |
French | générateur (generating, generative). (various references) | |
German | Generator (alternator, producer), Stromerzeuger (electric generator), Dynamo (dynamo, powerhouse). (various references) | |
Greek | γεννήτρια (dynamo). (various references) | |
Hebrew | מחולל (dancer, doer, originator, performer), יוצר (creator, fertile, generative, maker, productive), גנרטור. (various references) | |
Hungarian | generátor, alkotó (artificer, begetter, builder, coiner, component, composer, constituent, constitutive, creative, creator, generative, generatrix, maker, originator, procreative). (various references) | |
Indonesian | generator, pembangkit (instigator), disel. (various references) | |
Italian | generatore (breeder). (various references) | |
Japanese Kanji | ジェット燃料 (diethylene glycol, diopter, gem, gemstone, gender, gender gap, general, general strike, generalist, generate, generation, generation gap, generic, generic brand, genetic, genetic algorithms, genetic system, genocide, gentleman, geography, geology, geometric, geometry, Geotopia, gerontocracy, gerontology, Japanese External Trade Organization, jealousy, jelly, Jenkins, Jerry, jet fuel, JETRO, The End). (various references) | |
Japanese Katakana | ジェネレーター , ジェネレータ . (various references) | |
Korean | 발전기 (Alternator). (various references) | |
Manx | gienneyder, ayr (creeper, father, father figure, mover, padre). (various references) | |
Pig Latin | eneratorgay.(various references) | |
Portuguese | gerador (generative, productive), dínamo (balancer, boost, dynamo). (various references) | |
Romanian | generator (generating, motor generator), procreator, pãrinte (father, padre, parent). (various references) | |
Russian | генератор (alternator, oscillator, producer, spawner). (various references) | |
Serbo-Croatian | generator (dynamo, generatrix), proizvođač (maker, manufacturer, producer). (various references) | |
Spanish | generador (power unit), grupo electrógeno (power plant, power station, power unit). (various references) | |
Swedish | generator (dynamo-electric machine, effector, electric generator). (various references) | |
Turkish | jeneratör (generating set, power plant, power unit), dinamo (dynamo, power plant, power unit, powerhouse), ana nota (prime, radical). (various references) | |
Ukrainian | генератор (dynamo), виробник (maker, producer). (various references) | |
Vietnamese | người tạo ra, người sinh ra, máy phát điện, máy phát (producer), cái sinh thành máy sinh. (various references) | |
| Source: compiled by the editor from various translation references. | ||
Derivations | |
Words beginning with "generator": generators. (additional references) | |
Words ending with "generator": cogenerator, regenerator, turbogenerator. (additional references) | |
Words containing "generator": cogenerators, regenerators, turbogenerators. (additional references) | |
| |
"Generator" is suggested in spellcheckers for the following: Egertro, geehrter, generat, generater, genorator. (additional references) | |
| Source: compiled by the editor, based on several corpora (additional references). | |
| # of Phoneme Matches | Pronunciation | Word(s) rhyming with "generator" (pronounced je"nerā'ter) |
| 7 | j e" n er ā' t er | cogenerator. |
| 5 | -n er ā' t er | incinerator. |
| 4 | -er ā' t er | accelerator, carburetor, collaborator, decorator, evaporator, Moderator, operator, refrigerator, respirator. |
| 3 | -ā' t er | educator, elevator, accumulator, activator, actuator, administrator, agitator, alligator, allocator, alternator, animator, applicator, appropriator, arbitrator, aviator, calculator, commentator, communicator, conciliator, consolidator, coordinator, defibrillator, demonstrator, denominator, detonator, escalator, excavator, exterminator, fabricator, facilitator, gladiator, illuminator, illustrator, imitator, incubator, indicator, infiltrator, innovator, instigator, insulator, integrator, interrogator, investigator, irrigator, legislator, liquidator, litigator, locator, manipulator, mediator, modulator, navigator, negotiator, originator, oscillator, percolator, perpetrator, radiator, regulator, renovator, simulator, speculator, stimulator, syndicator, Terminator, ventilator, violator. |
Source: compiled by the editor (additional references); see credits. | ||
Scrabble® Enable2K-Verified Anagrams | |
| Words within the letters "a-e-e-g-n-o-r-r-t" | |
-2 letters: garrote, grantee, granter, grantor, greaten, greater, groaner, negater, negator, reagent, regrant, regrate, terrane. | |
-3 letters: argent, atoner, earner, enrage, entera, ergate, errant, garner, garnet, garote, garret, garron, garter, genera, gerent, goatee, grater, nearer, neater, negate, onager, orange, orgeat, ornate, ranger, ranter, reearn, regear, regent, regret, renter, retear, retore, retorn, tearer, terrae, tonger. | |
-4 letters: agene. | |
| Words containing the letters "a-e-e-g-n-o-r-r-t" | |
+1 letter: generators. | |
+2 letters: cogenerator, ferromagnet, governorate, interrogate, overgarment, regenerator, reoperating. | |
+3 letters: cogenerators, counterargue, ethnographer, ferromagnets, governorates, interrogated, interrogatee, interrogates, overgarments, overreacting, overtreating, overwatering, redecorating, regeneration, regenerators, reinvigorate, reregulation, stenographer. | |
+4 letters: antiforeigner, argentiferous, counterargued, counterargues, countercharge, deteriorating, ethnographers, ferromagnetic, foregathering, garnetiferous, interferogram, interregional, interrogatees, interrogative, overasserting, overbreathing, overmastering, overoperating, peregrination, photoengraver, reafforesting, reaggregation, refrigeration, regenerations, reintegration, reinvigorated, reinvigorates, reorientating, reregulations, resegregation, roentgenogram, stenographers, verbigeration. | |
| Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. | |
| 1. Definition 2. Synonyms 3. Crosswords 4. Usage: Modern | 5. Usage: Commercial 6. Images: Slideshow 7. Images: Photo Album 8. Images: Digital Art | 9. Quotations: Non-fiction 10. Usage Frequency 11. Expressions 12. Expressions: Internet | 13. Translations: Modern 14. Abbreviations 15. Acronyms 16. Derivations | 17. Rhymes 18. Anagrams 19. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
