单词 | photometry |
释义 | photometryn. Science. The measurement of light; comparison of the intensity of light from different sources; the use of a photometer. ΘΚΠ the world > physical sensation > sight and vision > optical skills and techniques > [noun] > use of instruments microscopy1665 telescopy1802 photometry1807 stereoscopy1861 polariscopy1872 ultramicroscopy1906 pseudoscopy1910 fluorescence microscopy1932 stroboscopy1932 electron microscopy1934 phase microscopy1946 X-ray microscopy1948 strioscopy1967 stereoviewing1968 transmission electron microscopy1968 photopolarimetry1974 STM1982 the world > matter > physics > electromagnetic radiation > light > intensity of light, luminosity > [noun] > degree of intensity > measurement of photometry1807 light curve1857 flicker photometry1897 spectrophotometry1899 photometering1917 1807 J. Aikin et al. Gen. Biogr. VI. 99/1 [Lambert] also published, in the same year [sc. 1760], his ‘Photometry’, by which he added a new branch to the science of mixed mathematics. 1830 Encycl. Brit. Prelim. Dissert. 637/2 The eighteenth century created a new branch of optical science, destined to measure or compare the intensities of different lights, and therefore termed Photometry. 1861 G. F. Chambers Handbk. Descr. Astron. vii. i. 277 The subject of the photometry of stars..has received but little attention from the practical astronomer. 1889 G. M. Hopkins Exper. Sci. (1893) xii. 269 The practical applications of the polariscope are few but important... In photometry, it forms the basis of several photometers. 1924 Nature 30 Aug. 329/2 The use of absorbing screens in heterochromatic photometry. 1989 M. Longair in P. Davies New Physics vi. 118/2 Traditional astronomical techniques such as multicolour photometry and high resolution spectroscopy. 2002 Ann. Bot. 89 45/1 The pH of each soil sample was determined using a digital pH meter,..phosphorus by spectrophotometry and potassium by flame photometry. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < n.1807 |
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