- crystal detectors
- • кристален детектор
English-Bulgarian polytechnical dictionary . 2013.
crystal detectors
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Crystal radio — Crystal set redirects here. For the Australian rock band, see The Crystal Set. A modern reproduction of an antique crystal set. It is tuned to different stations by moving the sliding contact (right) up and down the tuning coil (red). The device… … Wikipedia
Cryogenic particle detectors — operate at very low temperature, typically only a few degrees above absolute zero. These sensors interact with an energetic elementary particle (such as a photon) and deliver a signal which can be related to the type of particle and the nature of … Wikipedia
Pyroelectric crystal — Pyroelectric crystals are crystals that generate electricity when heated. It is similar to piezoelectricity.Crystal symmetryCrystal structures can be divided into 32 classes, or point groups, according to the number of rotational axes and… … Wikipedia
Cat's-whisker detector — Galena cat s whisker detector Precision cat s whisker d … Wikipedia
Germanium — (pronEng|dʒɚˈmeɪniəm) is a chemical element with the symbol Ge and atomic number 32. It is a lustrous, hard, silver white metalloid in the carbon group, chemically similar to its group neighbors tin and silicon. Germanium has five naturally… … Wikipedia
Clover (detector) — For other uses, see Clover (disambiguation). A clover detector is a gamma ray detector used in many physics laboratories. It consists of 4 coaxial N type high purity germanium (Ge) crystals each machined to shape and mounted in a common cryostat… … Wikipedia
Audion tube — Audion redirects here. For other uses, see Audion (disambiguation). Triode Audion from 1908. (The 1906 Audion was a 2 element device with the signal applied to a wire wrapped around the glass envelope.) The Audion is an electronic amplifying… … Wikipedia
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
Tikker — A tikker was a device that allowed early crystal radio circuits to detect continuous wave telegraphy. Ordinary crystal detectors cannot demodulate continuous waves; the direct current (DC) signal is inaudible in headphones.[1] One form of the… … Wikipedia
Explorer 4 — Infobox Spacecraft Name = Explorer 4 Organization = Army Ballistic Missile Agency Major Contractors = Jet Propulsion Laboratory Mission Type = Earth science Satellite Of = Earth Launch = July 26, 1958 at 15:07 UTC Launch Vehicle = Jupiter C Decay … Wikipedia
Lodge, Sir Oliver Joseph — ▪ British physicist born June 12, 1851, Penkhull, Staffordshire, Eng. died Aug. 22, 1940, Lake, near Salisbury, Wiltshire British physicist who perfected the coherer, a radio wave detector and the heart of the early radiotelegraph receiver.… … Universalium
