selenium cell

selenium cell
a photovoltaic cell consisting of a thin strip of selenium placed between two metal electrodes.
[1875-80]

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▪ device
      photoelectric device used to generate or control an electric current. Selenium photocells are commonly used in photographic-exposure meters, burglar alarms, electronic-door opening and counting devices, electronic control systems in factory assembly lines, and industrial colour perceptors. In some ways, such as colour perception and sensitivity, the performance of selenium photocells is superior to that of vacuum-tube photocells, but response is slower, making selenium cells unsuitable for high-fidelity sound reproduction from an optical sound track on motion-picture film.

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Universalium. 2010.

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  • selenium cell — n. a photoelectric cell using selenium as the photoconductive element …   English World dictionary

  • selenium cell — seleno fotoelementas statusas T sritis automatika atitikmenys: angl. selenium cell vok. Selenphotozelle, f; Selenzelle, f rus. селеновый фотоэлемент, m pranc. cellule photo électrique au sélénium, f …   Automatikos terminų žodynas

  • selenium cell — noun a photoelectric cell that uses a strip of selenium • Hypernyms: ↑photoelectric cell, ↑photoconductive cell, ↑photocell, ↑electric eye, ↑magic eye …   Useful english dictionary

  • selenium cell — sele′nium cell n. elm a photovoltaic cell consisting of a thin strip of selenium placed between two metal electrodes • Etymology: 1875–80 …   From formal English to slang

  • selenium cell — noun a photoelectric cell that uses a strip of selenium as the electron source …   Wiktionary

  • selenium cell — /səˈliniəm sɛl/ (say suh leeneeuhm sel) noun a photoelectric cell which depends upon the influence of light on the conductivity of a strip of selenium supported between two metal electrodes …  

  • selenium cell — noun Date: 1880 an insulated strip of selenium mounted with electrodes and used as a photoconductive element …   New Collegiate Dictionary

  • selenium cell — noun a photoelectric device containing a piece of selenium …   English new terms dictionary

  • selenium — n. Chem. a non metallic element occurring naturally in various metallic sulphide ores and characterized by the variation of its electrical resistivity with intensity of illumination. Usage: Symb.: Se. Phrases and idioms: selenium cell a piece of… …   Useful english dictionary

  • Selenium — (pronEng|səˈliniəm) is a chemical element with the atomic number 34, represented by the chemical symbol Se, an atomic mass of 78.96. It is a nonmetal, chemically related to sulfur and tellurium, and rarely occurs in its elemental state in nature …   Wikipedia

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