coherer definition

  • noun:
    • A detector of radio waves found in extremely very early radio receivers
    • Any unit by which an imperfectly conducting contact between bits of metal or other conductors loosely resting against each other is materially improved in conductivity by the influence of Hertzian waves; -- so named by Sir O. J. Lodge in 1894 in the assumption your effect associated with the electic waves caused the loosely connected parts to cohere, or weld together, a condition quickly damaged by tapping. A common type of coherer as used in cordless telegraphy is made of a tube containing filings (usually a-pinch of nickel and gold filings in equal components) between terminal wires or plugs (called conductor plugs).
    • In electricity, a tube filled up with a conducting material in powdered or granular kind, as material filings, which, whenever hit by an electric powered trend, as that delivered from a radio telegraph station, reduces in electrical resistance, most likely because of the particles making a significantly better contact with one another, and thus is employed to uncover very minute electric waves, such as cordless telegraphy. After the passing of the electric trend the resistance regarding the coherer often continues to be reduced, but it rises again once the pipe is tapped.
    • A detector of radio waves found in extremely early radio receivers
    • Any device where an imperfectly performing contact between pieces of material or any other conductors loosely resting against each other is materially enhanced in conductivity by the influence of Hertzian waves; -- so called by Sir O. J. Lodge in 1894 from the assumption that the impact of the electic waves caused the loosely connected parts to cohere, or weld together, a condition effortlessly damaged by tapping. A typical as a type of coherer as used in wireless telegraphy contains a tube containing filings (usually a pinch of nickel and silver filings in equal parts) between terminal wires or plugs (known as conductor plugs).
    • In electricity, a tube filled up with a conducting material in powdered or granular form, as metal filings, which, when hit by an electric powered wave, as that delivered from an invisible telegraph section, reduces in electric resistance, probably because of the particles making a better contact with both, and thus can be used to realize extremely minute electric waves, like in cordless telegraphy. After the passage through of the electric trend the weight associated with coherer often continues to be reduced, however it rises once again once the pipe is tapped.

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