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key detector

  • 1 устройство для контроля положения клавиш

    Универсальный русско-английский словарь > устройство для контроля положения клавиш

  • 2 клавиша возврата в исходное положение

    Русско-английский большой базовый словарь > клавиша возврата в исходное положение

  • 3 кнопка возврата в исходное положение

    Русско-английский большой базовый словарь > кнопка возврата в исходное положение

  • 4 определитель

    2) Medicine: indicator, pangen
    3) Military: analyzer, counter
    4) Engineering: discriminator, identifier
    5) Construction: detector
    6) Mathematics: D (discriminant), continuant, det (determinant), vanishing determinant
    7) Linguistics: definitive, qualifier
    9) Psychology: determiner
    10) Information technology: finder
    11) Fishery: key to
    12) Geophysics: locator
    13) Marine science: key

    Универсальный русско-английский словарь > определитель

  • 5 головка

    ( звукоснимателя) cartridge, ( крючковой иглы) beard текст., cap, capping, ( экструдера) die, (напр. шатуна) end, (напр. болта, заклепки, рельса) head, ( гири) weight knob, ( штифта) knob, ( резца) nose, (мартеновской печи, горелки) port, ( образца) grip portion, tip, ( графопостроителя) turrent
    * * *
    голо́вка ж.
    head
    агрега́тная голо́вка ( станка) — unit-type head
    голо́вка бло́ка цили́ндров ( двигателя) — head
    голо́вка бло́ка цили́ндров с двусторо́нним расположе́нием кана́лов — cross-flow head
    голо́вка болта́ — bolt head
    заё́ршить голо́вку болта́ — barb [rag] the bolt head
    болторе́зная голо́вка — threading die
    голо́вка бу́ра — drill bit
    голо́вка ветродви́гателя — headpiece, turntable
    винторе́зная голо́вка — screw-cutting head
    волново́дная голо́вка — waveguide mount
    волочи́льная голо́вка — drawhead, drawing head
    голо́вка волочи́льной теле́жки — carriage head
    воспроизводя́щая голо́вка — reproducing head
    выдувна́я голо́вка пласт. — blow head
    высокочасто́тная голо́вка — radio-frequency [RF] head
    гравирова́льная голо́вка полигр. — engraving head
    гранули́рующая голо́вка пласт. — pelletizing head
    дели́тельная голо́вка — index(ing) head; пласт. dividing head
    голо́вка деревообде́лочного станка́, ножева́я — cutterhead
    дете́кторная голо́вка — detector head, detector mount
    дио́дная голо́вка — diode mount
    голо́вка дистилля́та — top fraction
    зака́лочная голо́вка — quench head
    голо́вка заклё́пки — head of a rivet, rivet head
    раздава́ть голо́вку заклё́пки — expand a rivet head
    сруба́ть заподлицо́ голо́вку заклё́пки — chip a rivet head flush with the surface
    формирова́ть (замыка́ющую) голо́вку заклё́пки — form the point
    голо́вка заклё́пки, высадна́я — closing [snap] head of a rivet
    голо́вка заклё́пки, закладна́я — manufactured head of a rivet
    голо́вка заклё́пки, замыка́ющая — the point of a rivet
    голо́вка заклё́пки под обжи́мку — cup head of a rivet
    запи́сывающая голо́вка — recording [write] head
    зато́чная голо́вка — grinding head
    захва́тывающая голо́вка прок. — grip head
    звукова́я голо́вка — sound head, sound pick-up
    звукозапи́сывающая голо́вка — recording head
    голо́вка звукоснима́теля — pick-up head
    голо́вка зу́ба ( шестерни) — point of a tooth
    зуборе́зная голо́вка — gear-shaping cutter head
    зубострога́льная резцо́вая голо́вка — face-mill type gear cutter
    голо́вка иглы́ текст. — needle hook
    голо́вка изоля́тора — insulator cap
    кали́льная голо́вка двс. — hot bulb
    голо́вка клейми́теля — marking head
    голо́вка ключа́ свз. — key button
    голо́вка кни́ги — top
    листу́ющая голо́вка пласт. — slabbing [sheeting] head
    голо́вка ли́теры полигр. — beard
    литьева́я голо́вка пласт. — injection head
    голо́вка манипуля́тора — manipulator head
    голо́вка марте́новской пе́чи — port end
    голо́вка ма́чты — pinnacle, pole top
    голо́вка микроско́па, револьве́рная — revolving nosepiece of a microscope
    многодоро́жечная голо́вка вчт. — multitrack head
    многоручьева́я голо́вка пласт. — multiple head
    многошпи́ндельная голо́вка — multispindle head
    накладна́я голо́вка ( металлообрабатывающего станка) — attachment head
    неподви́жная голо́вка — fixed head
    голо́вка ножа́ ре́жущего аппара́та с.-х. — sickle head
    голо́вка ножа́, шарова́я с.-х. — knife head ball
    голо́вка обра́тной перемо́тки кфт. — rewind knob
    голо́вка огнево́го культива́тора с.-х. — flaming head
    панора́мная голо́вка кфт. — pan-and-tilt head
    голо́вка пая́льника — bit of a soldering iron
    голо́вка пая́льника, молотко́вая — 90-degree [right-angle] bit
    голо́вка пая́льника, торцо́вая голо́вка — straight bit
    печа́тающая голо́вка — printing heat
    пла́вающая (магни́тная) голо́вка — air-floated (magnetic) head
    пластици́рующая голо́вка пласт. — smear head
    поворо́тная голо́вка ( токарного станка) — swivel head
    подви́жная голо́вка — movable head
    голо́вка по́ршня — piston crown
    профили́рующая голо́вка пласт. — profiling head
    голо́вка пуансо́на — nose of punch
    разбры́згивающая голо́вка — shower head
    развё́ртывающая голо́вка полигр. — scanning head
    распредели́тельная голо́вка — distributor head
    распыли́тельная голо́вка ( реактивного двигателя) — injector
    распыли́тельная, кольцева́я голо́вка ( реактивного двигателя) — ring-type injector
    распыли́тельная, пло́ская голо́вка ( реактивного двигателя) — plate injector
    расто́чная голо́вка — boring head
    револьве́рная голо́вка — turret head
    револьве́рная голо́вка для крепле́ния загото́вок — turret stock head
    револьве́рная голо́вка для крепле́ния инструме́нта — turret tool head
    револьве́рная, объекти́вная голо́вка — lens turret (head)
    револьве́рная голо́вка тока́рного станка́ — capstan of a lathe
    резцо́вая голо́вка
    1. ( станка) tool head
    2. ( режущего инструмента) inserted blade milling cutter
    резьбонака́тная голо́вка — thread-rolling head
    резьбонарезна́я голо́вка — thread-cutting head
    голо́вка рогу́льки текст. — flyer top
    самораскрыва́ющаяся голо́вка ( для завинчивания шпилек) — self-opening stud socket
    сва́рочная голо́вка — welding head
    голо́вка сверла́ — drill bit
    сверли́льная голо́вка — drilling head
    сверли́льно-расто́чная голо́вка — drilling-boring head
    силова́я голо́вка — unit-type spindle head
    следя́щая голо́вка лентопроводя́щего устро́йства полигр. — web guiding sensing head
    следя́щая, фотоэлектри́ческая голо́вка полигр. — electric eye scanner
    голо́вка с распы́ливающими наконе́чниками с.-х. — spray head
    стира́ющая голо́вка — erase [erasing] head
    стрига́льная голо́вка с.-х. — shear head
    голо́вка счи́тывания — playback [read(ing), sensing] head
    счи́тывающая голо́вка — playback [read(ing), sensing] head
    съё́мная голо́вка — detachable head
    голо́вка табли́цы — box heading
    телеметри́ческая голо́вка — telemetering head
    голо́вка телефо́нного ште́пселя — plug tip
    голо́вка транспортё́ра, натяжна́я — tension head of a conveyer
    голо́вка транспортё́ра, приводна́я — drive head of a conveyer
    голо́вка транспортё́ра, разгру́зочная — delivery end of a conveyer
    универса́льная голо́вка (напр. магнитофона) — read-record head
    фотометри́ческая голо́вка — photometer head
    фре́зерная голо́вка
    1. ( станка) milling head
    2. ( режущего инструмента) inserted blade milling cutter
    голо́вка фунда́мента — footing cap
    голо́вка фу́рмы — top of a tuyere, top of a lance
    голо́вка цили́ндра — cylinder head
    голо́вка цили́ндра, неотъё́мная — integral cylinder head
    голо́вка цили́ндра, ребри́стая — finned cylinder head
    голо́вка цили́ндра, съё́мная — detachable [removable] cylinder head
    голо́вка часо́в, заводна́я — clock winder, watch-winding stem
    шаро́шечная голо́вка — cutter block
    голо́вка шатуна́ — connecting-rod end
    голо́вка шатуна́, больша́я — connecting-rod big end
    голо́вка шатуна́, кривоши́пная — connecting-rod big end
    голо́вка шатуна́, ма́лая — connecting-rod small end
    голо́вка шатуна́, ни́жняя — connecting-rod big end
    голо́вка шатуна́, поршнева́я — connecting-rod small end
    голо́вка шве́йного аппара́та полигр. — stitching head
    шипоре́зная голо́вка — tenoning head
    шлифова́льная голо́вка
    1. ( станка) wheelhead
    2. ( шлифовального инструмента) mounted (grinding) wheel, mounted (grinding) point
    штати́вная голо́вка кфт. — tripod head
    штати́вная, шарова́я голо́вка кфт. — ball-and-socket head
    голо́вка ште́пселя — (plug) tip
    экструзио́нная голо́вка — die [extrusion, discharge] head

    Русско-английский политехнический словарь > головка

  • 6 De Forest, Lee

    [br]
    b. 26 August 1873 Council Bluffs, Iowa, USA
    d. 30 June 1961 Hollywood, California, USA
    [br]
    American electrical engineer and inventor principally known for his invention of the Audion, or triode, vacuum tube; also a pioneer of sound in the cinema.
    [br]
    De Forest was born into the family of a Congregational minister that moved to Alabama in 1879 when the father became President of a college for African-Americans; this was a position that led to the family's social ostracism by the white community. By the time he was 13 years old, De Forest was already a keen mechanical inventor, and in 1893, rejecting his father's plan for him to become a clergyman, he entered the Sheffield Scientific School of Yale University. Following his first degree, he went on to study the propagation of electromagnetic waves, gaining a PhD in physics in 1899 for his thesis on the "Reflection of Hertzian Waves from the Ends of Parallel Wires", probably the first US thesis in the field of radio.
    He then joined the Western Electric Company in Chicago where he helped develop the infant technology of wireless, working his way up from a modest post in the production area to a position in the experimental laboratory. There, working alone after normal working hours, he developed a detector of electromagnetic waves based on an electrolytic device similar to that already invented by Fleming in England. Recognizing his talents, a number of financial backers enabled him to set up his own business in 1902 under the name of De Forest Wireless Telegraphy Company; he was soon demonstrating wireless telegraphy to interested parties and entering into competition with the American Marconi Company.
    Despite the failure of this company because of fraud by his partners, he continued his experiments; in 1907, by adding a third electrode, a wire mesh, between the anode and cathode of the thermionic diode invented by Fleming in 1904, he was able to produce the amplifying device now known as the triode valve and achieve a sensitivity of radio-signal reception much greater than possible with the passive carborundum and electrolytic detectors hitherto available. Patented under the name Audion, this new vacuum device was soon successfully used for experimental broadcasts of music and speech in New York and Paris. The invention of the Audion has been described as the beginning of the electronic era. Although much development work was required before its full potential was realized, the Audion opened the way to progress in all areas of sound transmission, recording and reproduction. The patent was challenged by Fleming and it was not until 1943 that De Forest's claim was finally recognized.
    Overcoming the near failure of his new company, the De Forest Radio Telephone Company, as well as unsuccessful charges of fraudulent promotion of the Audion, he continued to exploit the potential of his invention. By 1912 he had used transformer-coupling of several Audion stages to achieve high gain at radio frequencies, making long-distance communication a practical proposition, and had applied positive feedback from the Audion output anode to its input grid to realize a stable transmitter oscillator and modulator. These successes led to prolonged patent litigation with Edwin Armstrong and others, and he eventually sold the manufacturing rights, in retrospect often for a pittance.
    During the early 1920s De Forest began a fruitful association with T.W.Case, who for around ten years had been working to perfect a moving-picture sound system. De Forest claimed to have had an interest in sound films as early as 1900, and Case now began to supply him with photoelectric cells and primitive sound cameras. He eventually devised a variable-density sound-on-film system utilizing a glow-discharge modulator, the Photion. By 1926 De Forest's Phonofilm had been successfully demonstrated in over fifty theatres and this system became the basis of Movietone. Though his ideas were on the right lines, the technology was insufficiently developed and it was left to others to produce a system acceptable to the film industry. However, De Forest had played a key role in transforming the nature of the film industry; within a space of five years the production of silent films had all but ceased.
    In the following decade De Forest applied the Audion to the development of medical diathermy. Finally, after spending most of his working life as an independent inventor and entrepreneur, he worked for a time during the Second World War at the Bell Telephone Laboratories on military applications of electronics.
    [br]
    Principal Honours and Distinctions
    Institute of Electronic and Radio Engineers Medal of Honour 1922. President, Institute of Electronic and Radio Engineers 1930. Institute of Electrical and Electronics Engineers Edison Medal 1946.
    Bibliography
    1904, "Electrolytic detectors", Electrician 54:94 (describes the electrolytic detector). 1907, US patent no. 841,387 (the Audion).
    1950, Father of Radio, Chicago: WIlcox \& Follett (autobiography).
    De Forest gave his own account of the development of his sound-on-film system in a series of articles: 1923. "The Phonofilm", Transactions of the Society of Motion Picture Engineers 16 (May): 61–75; 1924. "Phonofilm progress", Transactions of the Society of Motion Picture Engineers 20:17–19; 1927, "Recent developments in the Phonofilm", Transactions of the Society of Motion Picture Engineers 27:64–76; 1941, "Pioneering in talking pictures", Journal of the Society of Motion Picture Engineers 36 (January): 41–9.
    Further Reading
    G.Carneal, 1930, A Conqueror of Space (biography).
    I.Levine, 1964, Electronics Pioneer, Lee De Forest (biography).
    E.I.Sponable, 1947, "Historical development of sound films", Journal of the Society of Motion Picture Engineers 48 (April): 275–303 (an authoritative account of De Forest's sound-film work, by Case's assistant).
    W.R.McLaurin, 1949, Invention and Innovation in the Radio Industry.
    C.F.Booth, 1955, "Fleming and De Forest. An appreciation", in Thermionic Valves 1904– 1954, IEE.
    V.J.Phillips, 1980, Early Radio Detectors, London: Peter Peregrinus.
    KF / JW

    Biographical history of technology > De Forest, Lee

  • 7 детектор свойства

    Русско-английский большой базовый словарь > детектор свойства

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