| slovo | definícia |
Coherer
(gcide) | Coherer \Co*her"er\, n. (Elec.)
Any device in which an imperfectly conducting contact between
pieces of metal or other conductors loosely resting against
each other is materially improved in conductivity by the
influence of Hertzian waves; -- so called by Sir O. J. Lodge
in 1894 on the assumption that the impact of the electic
waves caused the loosely connected parts to cohere, or weld
together, a condition easily destroyed by tapping. A common
form of coherer as used in wireless telegraphy consists of a
tube containing filings (usually a pinch of nickel and silver
filings in equal parts) between terminal wires or plugs
(called
conductor plugs).
[Webster 1913 Suppl.] |
| | podobné slovo | definícia |
Anticoherer
(gcide) | Anticoherer \An`ti*co*her"er\, n. (Wireless Teleg.)
A device, one form of which consists of a scratched deposit
of silver on glass, used in connection with the receiving
apparatus for reading wireless signals. The electric waves
falling on this contrivance increase its resistance several
times. The anticoherer can be used in conjunction with a
telephone.
[Webster 1913 Suppl.] |
Autocoherer
(gcide) | Autocoherer \Au`to*co*her"er\, n. [Auto- + coherer.] (Wireless
Teleg.)
A self-restoring coherer, as a microphonic detector.
[Webster 1913 Suppl.] |
Decoherer
(gcide) | Decoherer \De`co*her"er\ (d[=e]`k[-o]*h[=e]r"[~e]r), n. [Pref.
de- + coherer.] (Elec.)
A device for restoring a coherer to its normal condition
after it has been affected by an electric wave, a process
usually accomplished by some method of tapping or shaking, or
by rotation of the coherer.
[Webster 1913 Suppl.] |
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