densitometer


densitometer
1. An instrument for measuring the density of a fluid. SYN: densimeter. 2. An instrument for measuring, by virtue of relative turbidity, the growth of bacteria in broth; useful in microbiologic assay of nutrients and antibiotics, phage studies, etc. 3. An instrument for measuring the density of components ( e.g., protein fractions) separated by electrophoresis or chromatography, utilizing light absorption or reflection. 4. An electronic instrument for measuring the blackening of radiographic film by x-ray exposure; used for film sensitometry, bone densitometry, measurement of line spread function (microdensitometer). 5. An instrument for measuring the extent to which a material absorbs or reflects light. [L. densitas, density, + G. metron, measure]

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den·si·tom·e·ter .den(t)-sə-'täm-ət-ər n an instrument for determining optical, photographic, or mass density <diagnose osteoporosis using an X-ray bone \densitometer>
den·si·to·met·ric .den(t)-sət-ə-'me-trik adj
den·si·tom·e·try .den(t)-sə-'täm-ə-trē n, pl -tries

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den·si·tom·e·ter (den″sĭ-tomґə-tər) [L. densus dense + -meter] 1. an apparatus for determining the density of a liquid. Called also densimeter. 2. an instrument for determining the degree of darkening of developed photographic or x-ray film by means of a photocell which measures light transmission through a given area of the film. 3. an instrument for determining the density of deposits on electrophoresis strips and chromatographic plates by measuring light absorbancy.

Medical dictionary. 2011.

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  • densitometer — n. 1. an instrument for determining optical or photographic density. A variety capable of measuring optical density of a sample at a number of different wavelengths, is called a {spectrophotometer}. [WordNet 1.5] 2. same as {densimeter}. [PJC] …   The Collaborative International Dictionary of English

  • densitometer — [den΄sə täm′ət ər] n. [< DENSITY + METER] 1. a device for measuring optical density, as of a photographic negative 2. DENSIMETER …   English World dictionary

  • Densitometer — Durchsicht Densitometer Aufsicht Densitometer …   Deutsch Wikipedia

  • Densitometer — Not to be confused with hydrometer which measures mass density of liquids. Heiland Densitometer TRDZ 1 A densitometer is a device that measures the degree of darkness (the optical density) of a photographic or semitransparent material or of a… …   Wikipedia

  • Densitometer — densitometras statusas T sritis Standartizacija ir metrologija apibrėžtis Išryškinto fotografinio sluoksnio arba ant tam tikro pagrindo sudaryto vaizdo dažų sluoksnio optinio tankio matuoklis. atitikmenys: angl. densitometer; opacimeter vok.… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • densitometer — densitometras statusas T sritis Standartizacija ir metrologija apibrėžtis Išryškinto fotografinio sluoksnio arba ant tam tikro pagrindo sudaryto vaizdo dažų sluoksnio optinio tankio matuoklis. atitikmenys: angl. densitometer; opacimeter vok.… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • Densitometer — densitometras statusas T sritis fizika atitikmenys: angl. densitometer; opacimeter vok. Densitometer, n; Densometer, n; Schwärzungsmesser, m rus. денситометр, m pranc. densitomètre, m …   Fizikos terminų žodynas

  • densitometer — densitometras statusas T sritis fizika atitikmenys: angl. densitometer; opacimeter vok. Densitometer, n; Densometer, n; Schwärzungsmesser, m rus. денситометр, m pranc. densitomètre, m …   Fizikos terminų žodynas

  • densitometer — noun Date: 1901 an instrument for determining optical, photographic, or mass density < diagnose osteoporosis using an X ray bone densitometer > • densitometric adjective • densitometry noun …   New Collegiate Dictionary

  • Densitometer — Den|si|to|me|ter 〈n. 13〉 Instrument zum Messen der Schwärze (Dichte) fotografischer Schichten * * * Den|si|to|me|ter [lat. densitas = Dichte; ↑ meter], das; s, ; Syn.: Densometer: photoelektr. arbeitendes Gerät zur Messung der ↑ …   Universal-Lexikon