detector contact

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• Detector de bigotes de gato — Saltar a navegación, búsqueda Detector de bigotes de gato …   Wikipedia Español

• Contact electrification — is an obsolete scientific theory from the Enlightenment that attempted to account for all the sources of electric charge known at the time.[1] In the late 18th century, scientists developed sensitive instruments for detecting electrification ,… …   Wikipedia

• Cat's-whisker detector — Galena cat s whisker detector Precision cat s whisker d …   Wikipedia

• Semiconductor detector — A semiconductor detector is a device that uses a semiconductor (usually silicon or germanium) to detect traversing charged particles or the absorption of photons. In the field of particle physics, these detectors are usually known as silicon… …   Wikipedia

• crystal detector — noun a detector consisting of a fine wire in contact with a galena crystal; acts as a rectifier • Hypernyms: ↑detector • Part Meronyms: ↑crystal * * * noun radio : a detector that depends for its operation on the rectifying action of the surface… …   Useful english dictionary

• Smoke detector — A smoke detector is a device that detects smoke, typically as an indicator of fire. Commercial, industrial, and mass residential devices issue a signal to a fire alarm system, while household detectors, known as smoke alarms, generally issue a… …   Wikipedia

• Electrolytic detector — The electrolytic detector, or the bare point electrolytic detector as it was also called, was a type of wet demodulator used in early radio receivers. This form of detector was in extensive use, and was very sensitive and reliable.HistoryWhile… …   Wikipedia

• Defect detector — Overview of a wheel impact detector installation A defect detector is a device used on railroads to detect axle and signal problems in passing trains. The detectors are normally integrated into the tracks and often include sensors to detect… …   Wikipedia

• H1 (particle detector) — H1 is a particle detector in operation at HERA ( Hadron Elektron Ring Anlage ) in DESY, Hamburg. It began operating together with HERA in 1992. Leptons (electrons or positrons) are collided with protons by HERA in the interaction point of H1. H1… …   Wikipedia

• crystal detector — Radio. a device for rectifying a modulated radio frequency signal, consisting of a crystal of germanium, silicon, galena, or the like with a cat whisker contact, permitting a high frequency current to pass freely in one direction only: one of the …   Universalium

• Greenleaf Whittier Pickard — Infobox Scientist name = Greenleaf Whittier Pickard caption = birth date = birth date|1877|2|14 birth place = death date = death date and age|1956|1|8|1877|2|14 death place = residence =United States nationality = American field = Electrical… …   Wikipedia