relative photometer

См. также в других словарях:

• Photometer — Pho*tom e*ter, n. [Photo + meter: cf. F. photom[ e]tre.] (Physics) An instrument for measuring the intensity of light, or, more especially, for comparing the relative intensities of different lights, or their relative illuminating power. [1913… …   The Collaborative International Dictionary of English

• photometer — [fō täm′ət ər] n. [ PHOTO + METER] an instrument used in measuring the intensity of light, esp. in determining its relative intensity from different sources …   English World dictionary

• Photometer — In the broadest sense, a photometer is any instrument used to measure illuminance or irradiance. As applied in industrial photometry, a photometer is the general term covering instruments for detecting:*scattered light intensity *absorption… …   Wikipedia

• photometer — /foʊˈtɒmətə/ (say foh tomuhtuh) noun an instrument for measuring the intensity of light or the relative illuminating power of different lights. {photo + meter1} …  

• flame photometer — noun : a spectrophotometer in which a spray of metallic salts in solution is vaporized in a very hot flame and subjected to quantitative analysis by measuring the intensities of the spectrum lines of the metals present • flame photometric… …   Useful english dictionary

• фотометр для измерения коэффициента естественной освещённости — — [Я.Н.Лугинский, М.С.Фези Жилинская, Ю.С.Кабиров. Англо русский словарь по электротехнике и электроэнергетике, Москва, 1999 г.] Тематики электротехника, основные понятия EN relative photometer …   Справочник технического переводчика

• Photographische Photometrie — Photographische Photometrie. Die Intensität verschiedener Lichtquellen kann mittels lichtempfindlicher Substanzen, photographischer Platten, Papiere etc. gemessen werden, wobei man annimmt, daß zwei Lichtquellen photographisch gleich hell zu… …   Meyers Großes Konversations-Lexikon

• Photometrie [1] — Photometrie (Lichtmessung) wird in der Regel in zwei Gruppen eingeteilt: 1. die optische Photometrie; 2. die chemische Photometrie. Vgl. a. Beleuchtungsgrundsätze. I. Optische Photometrie. Photometer sind Vorrichtungen zum Messen von Helligkeiten …   Lexikon der gesamten Technik

• Multiangle light scattering — (MALS) is a technique for determining, independently, the absolute molar mass and the average size of particles in solution, by detecting how they scatter light. Collimated light from a laser source is most often used, in which case the technique …   Wikipedia

• Spectrophotometry — Spectrophotometer In chemistry, spectrophotometry is the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength.[1] It is more specific than the general term electromagnetic spectroscopy in …   Wikipedia

• University of Illinois Observatory — Infobox nrhp | name = University of Illinois Astronomical Observatory nrhp type=nhl caption = The observatory at U of I is a National Historic Landmark. locator x = locator y = location = Urbana, Illinois, Champaign County, Illinois, USA nearest… …   Wikipedia