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1 continuous waves circuit
Военный термин: линия телеграфной радиосвязи, радиотелеграфная сетьУниверсальный англо-русский словарь > continuous waves circuit
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2 continuous waves circuit
линия телеграфной радиосвязи; радиотелеграфная сетьEnglish-Russian military dictionary > continuous waves circuit
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3 circuit
— ship-to-shore radio circuit— wire transmission circuit -
4 Armstrong, Edwin Howard
[br]b. 18 December 1890 New York City, New York, USAd. 31 January 1954 New York City, New York, USA[br]American engineer who invented the regenerative and superheterodyne amplifiers and frequency modulation, all major contributions to radio communication and broadcasting.[br]Interested from childhood in anything mechanical, as a teenager Armstrong constructed a variety of wireless equipment in the attic of his parents' home, including spark-gap transmitters and receivers with iron-filing "coherer" detectors capable of producing weak Morse-code signals. In 1912, while still a student of engineering at Columbia University, he applied positive, i.e. regenerative, feedback to a Lee De Forest triode amplifier to just below the point of oscillation and obtained a gain of some 1,000 times, giving a receiver sensitivity very much greater than hitherto possible. Furthermore, by allowing the circuit to go into full oscillation he found he could generate stable continuous-waves, making possible the first reliable CW radio transmitter. Sadly, his claim to priority with this invention, for which he filed US patents in 1913, the year he graduated from Columbia, led to many years of litigation with De Forest, to whom the US Supreme Court finally, but unjustly, awarded the patent in 1934. The engineering world clearly did not agree with this decision, for the Institution of Radio Engineers did not revoke its previous award of a gold medal and he subsequently received the highest US scientific award, the Franklin Medal, for this discovery.During the First World War, after some time as an instructor at Columbia University, he joined the US Signal Corps laboratories in Paris, where in 1918 he invented the superheterodyne, a major contribution to radio-receiver design and for which he filed a patent in 1920. The principle of this circuit, which underlies virtually all modern radio, TV and radar reception, is that by using a local oscillator to convert, or "heterodyne", a wanted signal to a lower, fixed, "intermediate" frequency it is possible to obtain high amplification and selectivity without the need to "track" the tuning of numerous variable circuits.Returning to Columbia after the war and eventually becoming Professor of Electrical Engineering, he made a fortune from the sale of his patent rights and used part of his wealth to fund his own research into further problems in radio communication, particularly that of receiver noise. In 1933 he filed four patents covering the use of wide-band frequency modulation (FM) to achieve low-noise, high-fidelity sound broadcasting, but unable to interest RCA he eventually built a complete broadcast transmitter at his own expense in 1939 to prove the advantages of his system. Unfortunately, there followed another long battle to protect and exploit his patents, and exhausted and virtually ruined he took his own life in 1954, just as the use of FM became an established technique.[br]Principal Honours and DistinctionsInstitution of Radio Engineers Medal of Honour 1917. Franklin Medal 1937. IERE Edison Medal 1942. American Medal for Merit 1947.Bibliography1922, "Some recent developments in regenerative circuits", Proceedings of the Institute of Radio Engineers 10:244.1924, "The superheterodyne. Its origin, developments and some recent improvements", Proceedings of the Institute of Radio Engineers 12:549.1936, "A method of reducing disturbances in radio signalling by a system of frequency modulation", Proceedings of the Institute of Radio Engineers 24:689.Further ReadingL.Lessing, 1956, Man of High-Fidelity: Edwin Howard Armstrong, pbk 1969 (the only definitive biography).W.R.Maclaurin and R.J.Harman, 1949, Invention \& Innovation in the Radio Industry.J.R.Whitehead, 1950, Super-regenerative Receivers.A.N.Goldsmith, 1948, Frequency Modulation (for the background to the development of frequency modulation, in the form of a large collection of papers and an extensive bibliog raphy).KFBiographical history of technology > Armstrong, Edwin Howard
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5 Eccles, William Henry
[br]b. 23 August 1875 Ulverston, Cumbria, Englandd. 27 April 1966 Oxford, England[br]English physicist who made important contributions to the development of radio communications.[br]After early education at home and at private school, Eccles won a scholarship to the Royal College of Science (now Imperial College), London, where he gained a First Class BSc in physics in 1898. He then worked as a demonstrator at the college and studied coherers, for which he obtained a DSc in 1901. Increasingly interested in electrical engineering, he joined the Marconi Company in 1899 to work on oscillators at the Poole experimental radio station, but in 1904 he returned to academic life as Professor of Mathematics and Physics and Department Head at South West Polytechnic, Chelsea. There he discovered ways of using the negative resistance of galena-crystal detectors to generate oscillations and gave a mathematical description of the operation of the triode valve. In 1910 he became Reader in Engineering at University College, London, where he published a paper explaining the reflection of radio waves by the ionosphere and designed a 60 MHz short-wave transmitter. From 1916 to 1926 he was Professor of Applied Physics and Electrical Engineering at the Finsbury City \& Guilds College and a private consulting engineer. During the First World War he was a military scientific adviser and Secretary to the Joint Board of Scientific Societies. After the war he made many contributions to electronic-circuit development, many of them (including the Eccles-Jordan "flip-flop" patented in 1918 and used in binary counters) in conjunction with F.W.Jordan, about whom little seems to be known. Illness forced Eccles's premature academic retirement in 1926, but he remained active as a consultant for many years.[br]Principal Honours and DistinctionsFRS 1921. President, Institution of Electrical Engineers, 1926–7. President, Physical Society 1929. President, Radio Society of Great Britain.Bibliography1912, "On the diurnal variation of the electric waves occurring in nature and on the propagation of electric waves round the bend of the earth", Proceedings of the Royal Society 87:79. 1919, with F.W.Jordan, "Method of using two triode valves in parallel for generating oscillations", Electrician 299:3.1915, Handbook of Wireless Telegraphy.1921, Continuous Wave Wireless Telegraphy.Further Reading1971, "William Henry Eccles, 1875–1966", Biographical Memoirs of the Royal Society, London, 17.KF -
6 C
1) Общая лексика: hum. сокр. Cytosine, С-образный, большая калория, имеющий форму буквы С, килограмм-калория2) Компьютерная техника: Computational, Си (язык программирования)3) Биология: complement, cysteine, cytosine4) Авиация: chime, clear, close, cold, common, comparator, convertible, cyan(blue), fault classification5) Американизм: Communism, Constitution, отметка "удовлетворительно"6) Спорт: Challenger, Club, Coach, Cubs7) Военный термин: Canadian, Celsius, Coniferous, Crisis, camp, cannon, captain, cargo, carrier, case, center, central, chairman, change, charge, chief, circuit, circular, civil, clearance, climb, clockwise, combat, command, command paper, commandant, comment, communications, compass, complete, complex, compliance, composition, comptroller, computer, concurrent, confidential, configuration, constant, contact, continental, control, controller, controls, copy, corps, cost, council, count, crew, cycle, лазерное наведение, малонадёжный источник разведывательной информации, стартующий из горизонтального контейнера (о ракете), (cargo) транспортный (самолёт)8) Техника: cable, candela, ceratoid artery, chirp, chrominance, closed, cobalt, coil, collector, commercial agriculture, communication, communications, compensator, compression, computing, conductor, congo, contraction, control room, course, course angle, cuspid, cycles per second, normality, velocity of electromagnetic waves, velocity of light, военное обозначение управляющих устройств, цилиндрический буй9) Сельское хозяйство: canine tooth, carotid artery, centralized, centrifugal, chorda, cilia, clay, coarse, container, controlled atmosphere, copper, cubic10) Математика: Convergent, с (c; обозначение известного числа)11) Юридический термин: Cantankerous, Competent, Conviction12) Бухгалтерия: Costs, Credit, к переносу14) Музыка: нота до, ДО (нота настройки), до (нота)16) Телевидение: CHROMA17) Телекоммуникации: Connectivity18) Сокращение: Capacitor, Chaff, Charlie (phonetic alphabet), Composite Operation (MODS report abbreviation), Confidential (security classification), Court, Cumulus, Time zone 37.5 E - 52.5 E (GMT -3), calorie, carbon, celsius (temperature), centigrade, congress, coulomb (electric charge), current, single-cotton-covered (isolation), crown (paper format), programming language (successor to B, which was based on BCPL), call, capacitance, cell, company, currency, cylinder, degree Celsius19) Физиология: Coronary21) Вычислительная техника: C Programming Language, see, язык Си22) Нефть: Cal contact caliper, DLC GR compensated dencilog, caliper, gamma ray log, DLC GRN compensated dencilog, caliper, gamma ray, neutron log, DLC M compensated dencilog, caliper, minilog, DLC compensated dencilog, caliper log, углерод (carbon), конго (сорт алмазов)23) Генетика: constant part, цистеин24) Иммунология: Cleanse25) Картография: Cambridgeshire, Canada, Celtic, can, cape, catholic, caution area, дорога с шириной проезжей части в 9-15 футов без объездов, дорога с шириной проезжей части в 9-15 футов без объездов, проходимая только в сухую погоду, дорога, проходимая для гужевого транспорта только в сухое время года, якорная стоянка для судов с осадкой не более 24 футов и с ограниченным (не более 24 часов) временем стоянки27) Парфюмерия: косметический28) Холодильная техника: condenser, degree centigrade29) Деловая лексика: Collaboration, Counsel30) Бурение: буровой подрядчик (contractor), со стоградусной шкалой (centigrade), стоградусный (centigrade), температурная шкала Цельсия (centigrade)31) Глоссарий компании Сахалин Энерджи: Advisors and Consultants, Construction, conductivity32) Микроэлектроника: AND circuit33) Инвестиции: Commissioner's Decisions, Common law, Court of Customs and Patent Appeals Reports, coupon34) Полимеры: Coulomb, calendering, cast, catalyst, coefficient, concentration, continuous, curie36) Контроль качества: calibration37) Химическое оружие: ceiling limit, critical38) Авиационная медицина: certificate of airworthiness39) Макаров: C-образный, имеющий форму буквы C, третий по счёту, до (муз. нота), (complement) комплемент, (cytosine) цитозин40) Расширение файла: C Programming Language, C language source code file, C language source (Watcom C/C++)41) Электротехника: cord, coulombmeter42) Общественная организация: Contribution43) Должность: Cardinal, Compensation45) Правительство: Con46) Программное обеспечение: Compiler47) Обувная промышленность: conductive (специальное обозначение) -
7 c
1) Общая лексика: hum. сокр. Cytosine, С-образный, большая калория, имеющий форму буквы С, килограмм-калория2) Компьютерная техника: Computational, Си (язык программирования)3) Биология: complement, cysteine, cytosine4) Авиация: chime, clear, close, cold, common, comparator, convertible, cyan(blue), fault classification5) Американизм: Communism, Constitution, отметка "удовлетворительно"6) Спорт: Challenger, Club, Coach, Cubs7) Военный термин: Canadian, Celsius, Coniferous, Crisis, camp, cannon, captain, cargo, carrier, case, center, central, chairman, change, charge, chief, circuit, circular, civil, clearance, climb, clockwise, combat, command, command paper, commandant, comment, communications, compass, complete, complex, compliance, composition, comptroller, computer, concurrent, confidential, configuration, constant, contact, continental, control, controller, controls, copy, corps, cost, council, count, crew, cycle, лазерное наведение, малонадёжный источник разведывательной информации, стартующий из горизонтального контейнера (о ракете), (cargo) транспортный (самолёт)8) Техника: cable, candela, ceratoid artery, chirp, chrominance, closed, cobalt, coil, collector, commercial agriculture, communication, communications, compensator, compression, computing, conductor, congo, contraction, control room, course, course angle, cuspid, cycles per second, normality, velocity of electromagnetic waves, velocity of light, военное обозначение управляющих устройств, цилиндрический буй9) Сельское хозяйство: canine tooth, carotid artery, centralized, centrifugal, chorda, cilia, clay, coarse, container, controlled atmosphere, copper, cubic10) Математика: Convergent, с (c; обозначение известного числа)11) Юридический термин: Cantankerous, Competent, Conviction12) Бухгалтерия: Costs, Credit, к переносу14) Музыка: нота до, ДО (нота настройки), до (нота)16) Телевидение: CHROMA17) Телекоммуникации: Connectivity18) Сокращение: Capacitor, Chaff, Charlie (phonetic alphabet), Composite Operation (MODS report abbreviation), Confidential (security classification), Court, Cumulus, Time zone 37.5 E - 52.5 E (GMT -3), calorie, carbon, celsius (temperature), centigrade, congress, coulomb (electric charge), current, single-cotton-covered (isolation), crown (paper format), programming language (successor to B, which was based on BCPL), call, capacitance, cell, company, currency, cylinder, degree Celsius19) Физиология: Coronary21) Вычислительная техника: C Programming Language, see, язык Си22) Нефть: Cal contact caliper, DLC GR compensated dencilog, caliper, gamma ray log, DLC GRN compensated dencilog, caliper, gamma ray, neutron log, DLC M compensated dencilog, caliper, minilog, DLC compensated dencilog, caliper log, углерод (carbon), конго (сорт алмазов)23) Генетика: constant part, цистеин24) Иммунология: Cleanse25) Картография: Cambridgeshire, Canada, Celtic, can, cape, catholic, caution area, дорога с шириной проезжей части в 9-15 футов без объездов, дорога с шириной проезжей части в 9-15 футов без объездов, проходимая только в сухую погоду, дорога, проходимая для гужевого транспорта только в сухое время года, якорная стоянка для судов с осадкой не более 24 футов и с ограниченным (не более 24 часов) временем стоянки27) Парфюмерия: косметический28) Холодильная техника: condenser, degree centigrade29) Деловая лексика: Collaboration, Counsel30) Бурение: буровой подрядчик (contractor), со стоградусной шкалой (centigrade), стоградусный (centigrade), температурная шкала Цельсия (centigrade)31) Глоссарий компании Сахалин Энерджи: Advisors and Consultants, Construction, conductivity32) Микроэлектроника: AND circuit33) Инвестиции: Commissioner's Decisions, Common law, Court of Customs and Patent Appeals Reports, coupon34) Полимеры: Coulomb, calendering, cast, catalyst, coefficient, concentration, continuous, curie36) Контроль качества: calibration37) Химическое оружие: ceiling limit, critical38) Авиационная медицина: certificate of airworthiness39) Макаров: C-образный, имеющий форму буквы C, третий по счёту, до (муз. нота), (complement) комплемент, (cytosine) цитозин40) Расширение файла: C Programming Language, C language source code file, C language source (Watcom C/C++)41) Электротехника: cord, coulombmeter42) Общественная организация: Contribution43) Должность: Cardinal, Compensation45) Правительство: Con46) Программное обеспечение: Compiler47) Обувная промышленность: conductive (специальное обозначение) -
8 close
Ⅰ.close1 [kləʊs]proche ⇒ 1 (a), 1 (b), 1 (f) serré ⇒ 1 (d), 1 (g) attentif ⇒ 1 (e) mal aéré ⇒ 1 (h) près ⇒ 1 (a), 2 (a) étroitement ⇒ 2 (b)(a) (near in space or time) proche;∎ the library is close to the school la bibliothèque est près ou proche de l'école;∎ in close proximity to sth dans le voisinage immédiat de ou tout près de qch;∎ they're very close in age ils ont presque le même âge;∎ his death brought the war closer to home c'est avec sa mort que nous avons vraiment pris conscience de la guerre;∎ we are close to an agreement nous sommes presque arrivés à un accord;∎ at close intervals à intervalles rapprochés;∎ I saw him at close quarters je l'ai vu de près;∎ at close range à bout portant;∎ to be close at or to hand (shop, cinema etc) être tout près; (book, pencil etc) être à portée de main;∎ to be close to tears être au bord des larmes;∎ to be (very) close to victory être (tout) près de la victoire;∎ familiar I came close to thumping him one j'ai bien failli lui en coller une;∎ he keeps things close to his chest il ne fait guère de confidences;∎ to see sth at close quarters voir qch de près;∎ to give sb a close shave raser qn de près;∎ the bill was passed but it was a close thing la loi a été votée de justesse;∎ he managed to get elected but it was a close run thing il a été élu de justesse(b) (in relationship) proche;∎ they're very close (friends) ils sont très proches;∎ he's a close friend of mine c'est un ami intime;∎ a close relative un parent proche;∎ I'm very close to my sister je suis très proche de ma sœur;∎ he has close ties with Israel il a des rapports étroits avec Israël;∎ there's a close connection between the two things il y a un rapport étroit entre les deux;∎ the President consulted his closest advisers le président consulta ses conseillers les plus proches;∎ sources close to the royal family des sources proches de la famille royale;∎ a subject close to my heart un sujet qui me tient à cœur;∎ to keep sth a close secret garder le secret absolu sur qch∎ they stay in close contact ils restent en contact en permanence∎ it was a close contest ce fut une lutte serrée;∎ to play a close game jouer serré;∎ close finish arrivée f serrée(e) (thorough, careful) attentif, rigoureux;∎ pay close attention to what she says faites très attention ou prêtez une grande attention à ce qu'elle dit;∎ have a close look at these figures examinez ces chiffres de près;∎ upon close examination après un examen détaillé ou minutieux;∎ to keep (a) close watch or eye on sb/sth surveiller qn/qch de près;∎ I keep close control of the expenses je contrôle étroitement les dépenses;∎ in close confinement en détention surveillée(f) (roughly similar) proche;∎ his version of events was close to the truth sa version des faits était très proche de la réalité;∎ he bears a close resemblance to his father il ressemble beaucoup à son père;∎ it's the closest thing we've got to an operating theatre voilà à quoi se réduit notre salle d'opération∎ Military in close formation en ordre serré∎ it's very close in here on manque vraiment d'air ici;∎ it's terribly close today il fait très lourd aujourd'hui(i) (secretive) renfermé, peu communicatif;∎ he's very close about his private life il est très discret sur sa vie privée2 adverb∎ don't come too close n'approche pas ou ne t'approche pas trop;∎ I live close to the river j'habite près de la rivière;∎ did you win? - no, we didn't even come close avez-vous gagné? - non, loin de là;∎ she came close to losing her job elle a failli perdre son emploi;∎ to come close to death frôler la mort;∎ to come close to the world record frôler le record du monde;∎ they walked close behind us ils nous suivaient de près;∎ she lives close by elle habite tout près;∎ I looked at it close to or up je l'ai regardé de près;∎ close together serrés les uns contre les autres;∎ sit closer together! serrez-vous!;∎ it's brought us closer ça nous a rapprochés∎ he held me close il m'a serré dans ses bras3 noun∎ it's close on nine o'clock il est presque neuf heures;∎ she must be close on fifty elle doit friser la cinquantaine ou doit avoir près de cinquante ans(almost, nearly) presque;∎ the baby weighs close to 7 pounds ≃ le bébé pèse presque 3 kilos et demi►► Military close combat corps à corps m;Music close harmony tessiture f limitéeⅡ.close2 [kləʊz]fermer ⇒ 1 (a)-(d), 1 (j), 2 (a) conclure ⇒ 1 (e), 1 (h) arrêter ⇒ 1 (f) liquider ⇒ 1 (g) se refermer ⇒ 2 (b) se terminer ⇒ 2 (d) clôturer ⇒ 2 (e) fin, conclusion ⇒ 3(a) (shut → door, window, shop, book) fermer;∎ he closed his eyes and went to sleep il ferma les yeux et s'endormit;∎ figurative the committee had not closed the books on the inquiry le comité n'avait pas refermé le dossier de l'affaire;∎ to close one's eyes to sth fermer les yeux sur qch;∎ to close one's mind to sth refuser de penser à qch;∎ she closed her mind to anything new elle s'est fermée à tout ce qui était neuf(b) (opening, bottle) fermer, boucher;∎ figurative we must close the gap between the rich and the poor nous devons combler le fossé entre riches et pauvres(c) (block → border, road) fermer;∎ they've closed the airport ils ont fermé l'aéroport;∎ a road closed to motor traffic une route interdite à la circulation automobile(d) (shut down → factory) fermer;∎ they plan to close more rural stations ils ont l'intention de fermer d'autres petites gares de campagne∎ she closed the conference with a rallying call to the party faithful elle termina la conférence en lançant un appel de solidarité aux fidèles du parti;∎ a neat way of closing the discussion un habile moyen de clore la discussion;∎ the subject is now closed l'affaire est close∎ to close the books balancer les comptes, régler les livres;∎ to close the yearly accounts arrêter les comptes de l'exercice(h) (settle → deal) conclure;∎ we closed a deal with them last week nous avons conclu un accord avec eux la semaine dernière(i) (move closer together) serrer, rapprocher;∎ Military close ranks! serrez les rangs!;∎ figurative the party closed ranks behind their leader le parti a serré les rangs derrière le leader∎ this window doesn't close properly cette fenêtre ne ferme pas bien ou ferme mal;∎ the door closed quietly behind them la porte s'est refermée sans bruit derrière eux;∎ the bakery closes on Fridays la boulangerie ferme le vendredi(b) (wound, opening) se refermer;∎ the gap was closing fast l'écart diminuait rapidement(c) (cover, surround)∎ the waves closed over him les vagues se refermèrent sur lui;∎ the onlookers closed around us un cercle de curieux se forma autour de nous;∎ my fingers closed around the gun mes doigts se resserrèrent sur le revolver∎ I closed with a reference to Rimbaud j'ai terminé par une référence à Rimbaud(e) Stock Exchange clôturer;∎ the shares closed at 420p les actions ont clôturé ou terminé à 420 pence;∎ the share index closed two points down l'indice (boursier) a clôturé en baisse de deux points3 nounfin f, conclusion f; (of day) tombée f; Stock Exchange (on financial futures market) clôture f; (closing price) cours m de clôture;∎ at close of business à la ou en clôture;∎ the concert came to a close le concert s'acheva;∎ the year drew to a close l'année s'acheva;∎ it's time to draw the meeting to a close il est temps de mettre fin à cette réunion;∎ towards the close of the century vers la fin du siècle;∎ at close of play (in cricket) à la fin du match►► Computing close box case f de fermeture;British close season Hunting fermeture f de la chasse; Fishing fermeture f de la pêche; Football intersaison f(a) (business, factory) fermer;∎ the shop had to close down le magasin a dû fermer(business, factory) fermer;∎ they had to close down their shop ils ont dû fermer leur magasin∎ to close in on or upon se rapprocher de;∎ the hunters closed in on their prey les chasseurs se rapprochèrent de leur proie;∎ the police/his creditors are closing in l'étau de la police/de ses créanciers se resserre∎ darkness closed in on us la nuit nous enveloppaisoler, fermer;∎ the area was closed off to the public le quartier était fermé au public;∎ some of the rooms in the house have been closed off certaines pièces de la maison ont été fermées;∎ Accountancy to close off an account arrêter un comptese rapprocher de;∎ we were closing on them fast nous nous rapprochions d'eux rapidement(b) (complete successfully → game, competition) remporter;∎ to close it out l'emporter∎ to close a position boucler ou clore ou fermer une position➲ close up(c) (shop, house) fermer(b) (shopkeeper) fermer(a) (finalize deal with) conclure un marché avec
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