A History of Wireless Telegraphy: Including Some Bare-wire Proposals for Subaqueous TelegraphsBlackwood, 1901 - 348 páginas |
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Página 180
... exciter of electrical vibrations . 2. Such vibrations are capable of exciting in another circuit of like form resonance effects of such intensity as to be evident even when the two circuits are separated by considerable distances . In ...
... exciter of electrical vibrations . 2. Such vibrations are capable of exciting in another circuit of like form resonance effects of such intensity as to be evident even when the two circuits are separated by considerable distances . In ...
Página 181
... exciter was charged by an ordinary Ruhmkorff induction coil of small size . Fig . 31 . When The detector was mostly a simple rectangle or circle of wire ( fig . 31 ) , also provided with a spark - gap . vibrations are set up in the ...
... exciter was charged by an ordinary Ruhmkorff induction coil of small size . Fig . 31 . When The detector was mostly a simple rectangle or circle of wire ( fig . 31 ) , also provided with a spark - gap . vibrations are set up in the ...
Página 182
... exciter . If the latter were visible from the detector spark - gap the sparks given off there were small and hardly perceptible , but became larger and brighter as soon as a screen was placed between the two instruments . By carefully ...
... exciter . If the latter were visible from the detector spark - gap the sparks given off there were small and hardly perceptible , but became larger and brighter as soon as a screen was placed between the two instruments . By carefully ...
Página 183
... exciter electric surgings occur , and we have a rectilinear oscillation which radiates out into surrounding space . The detectors , whose spark - gaps were adjustable by means of a micrometer screw , were brought into all kinds of ...
... exciter electric surgings occur , and we have a rectilinear oscillation which radiates out into surrounding space . The detectors , whose spark - gaps were adjustable by means of a micrometer screw , were brought into all kinds of ...
Página 184
... exciter a large screen of zinc plate , 8 feet square , was suspended on the wall ; the electric waves emitted from the exciter were reflected from the plate , and on meeting the direct waves interference phenomena were produced ...
... exciter a large screen of zinc plate , 8 feet square , was suspended on the wall ; the electric waves emitted from the exciter were reflected from the plate , and on meeting the direct waves interference phenomena were produced ...
Outras edições - Ver tudo
A History of Wireless Telegraphy, 1838-1899: Including Some Bare-wire ... John Joseph Fahie Visualização integral - 1899 |
A History of Wireless Telegraphy, 1838-1899: Including Some Bare-wire ... John Joseph Fahie Visualização integral - 1900 |
A History of Wireless Telegraphy, 1838-1899: Including Some Bare-wire ... John Joseph Fahie Visualização integral - 1900 |
Palavras e frases frequentes
apparatus arrangement battery cable cells centimetres Cheap Edition circuit communication condenser conducting conductor connected copper wire Crown 8vo Daniell cell Demy 8vo detector diameter discharge distance disturbance Dundee earth effect Elec electric waves electrical oscillations Electrician electro-magnetic employed ether ethereal waves exciter experiments Fcap feet filings Flat Holm galvanometer gutta-percha Hertz Hertzian waves Illustrations inch increase induction coil iron Leclanché cells length Leyden jar light lighthouse Lindsay magnetic Marconi means ments messages metallic method metres microphone miles Morse Muckle Flugga needle obtained ohms ordinary paper parallel pass patent plates poles Portraits possible Post 8vo practical produced Prof Professor receiving instrument reflector relay resistance Scotland Second Edition secondary sending sensitive tube ship shore shown signals space spark-gap sparks station surface telegraph telephone terminals tion transmitting trembler tricity vertical wire vibrations Willoughby Smith wire wireless telegraphy yards
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