hot filament

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• Hot filament ionization gauge — Infobox Laboratory equipment name = Hot filament ionization gauge caption = Bayard Alpert hot thoriated iridium filament ionization gauge on 2.75 in conflat flange acronym = other names = Hot cathode gauge Bayard Alpert gauge uses = Pressure… …   Wikipedia

• hot-filament evaporator — vielinis garintuvas statusas T sritis radioelektronika atitikmenys: angl. hot filament evaporator vok. Heizfadenverdampfer, m rus. проволочный испаритель, m pranc. évaporateur à filament, m …   Radioelektronikos terminų žodynas

• Hot cathode — is also a name for a hot filament ionization gauge, a vacuum measuring device.In vacuum tubes, a hot cathode is a cathode electrode which emits electrons due to thermionic emission. ( Cf. cold cathodes, where field emission is used and which do… …   Wikipedia

• Filament — may refer to:In physics and electrical engineering* Electrical filament * Current filament * Filament propagation, diffractionless propagation of a light beam * Hot cathode, a filament in a vacuum tube that emits electronsIn astronomy* Galaxy… …   Wikipedia

• filament — ► NOUN 1) a slender thread like object or fibre. 2) a metal wire in an electric light bulb, which glows white hot when an electric current is passed through it. 3) Botany the slender part of a stamen that supports the anther. DERIVATIVES… …   English terms dictionary

• Filament — VP The thin spring that glows to produce light inside a bulb. FilmM the little delicate spring that glows hot to produce light inside light bulbs …   Audio and video glossary

• évaporateur à filament — vielinis garintuvas statusas T sritis radioelektronika atitikmenys: angl. hot filament evaporator vok. Heizfadenverdampfer, m rus. проволочный испаритель, m pranc. évaporateur à filament, m …   Radioelektronikos terminų žodynas

• Electrical filament — An electrical filament is a thread of metal, usually tungsten, which is used to convert electricity into light in incandescent light bulbs (as developed in 1874 by Alexander Lodygin and in 1878 by Joseph Wilson Swan, among others), and into heat… …   Wikipedia

• Thin filament pyrometry — (TFP) is an optical method used to measure temperatures. It involves the placement of a thin filament in a hot gas stream. Radiative emissions from the filament can be correlated with filament temperature. Filaments are typically Silicon carbide… …   Wikipedia

• warm-hot intergalactic medium — noun the relatively hot (warmer than warm, but cooler than hot) intergalactic medium found within a filament of galaxies (galaxy filament), wall of galaxies (galaxy wall), sheet of galaxies (galaxy sheet) or galaxy hypercluster (hypercluster,… …   Wiktionary

• Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …   Wikipedia