coherer การใช้

• Botto's 1897 coherer looks like a primitive bracelet.
• Italian-born Guglielmo Marconi applied the coherer to communications.
• In operation, the coherer is included in two separate electrical circuits.
• The first widely used detector was the coherer, invented in 1890.
• The Electrician readily commented on Bose s coherer . ( December 1895 ).
• Feeling challenged by coherer-tape reception up to, and audio reception up to.
• In 1895, he built a coherer.
• He called his device the coherer.
• The Stone Coherer has two small steel plugs between which are placed loosely packed carbon granules.
• Tesla, for example, invented a coherer in which the tube rotated continually along its axis.
• Consequently, the coherer cannot be relied upon as a " calling-up apparatus ".
• Unfortunately, the reduction in the coherer's electrical resistance persisted after the radio signal was removed.
• This returned the coherer to the nonconductive state, turning off the electromagnet current, and the arm sprang back.
• Popov constructed a filings coherer, one form of which was used in some surveying experiments by the Russian government.
• Lodge used a detector called a " coherer ", a glass tube containing metal filings between two electrodes.
• The receiver for the transatlantic demonstration employed a coherer, which had poor sensitivity and degraded the tuning of the receiver.
• A coherer with electromagnet-operated " tapper " ( decoherer ), built by early radio researcher Emile Guarini around 1904.
• However the usual range of coherer receivers even with the powerful transmitters of this era was limited to a few hundred miles.
• The coherer became the basis for radio reception, and remained in widespread use for about ten years, until about 1907.
• In 1894-95 he built his first radio receiver, an improved version of coherer-based design by Oliver Lodge.