coherer


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coherer

[kō′hir·ər]
(electricity)
A cell containing a granular conductor between two electrodes; the cell becomes highly conducting when it is subjected to an electric field, and conduction can then be stopped only by jarring the granules.
References in periodicals archive ?
To compare the sensitivities of his detector and the standard detector of the time, the coherer, as detectors of electromagnetic waves, he mounted his detector in the receiving circuit of a standard (Hertzian) oscillator/receiver unit.
In the biography, Degna states that Marconi improved the coherer invented by Lodge and another coherer invented by Edouard Branly, as he was entitled to do.
The British physicist Oliver Joseph Lodge (1851-1940) improved the device in 1894, called it a coherer, and used it to detect radio waves half a mile from the source.