| 释义 |
photometric, a.|fəʊtəʊˈmɛtrɪk|
[f. photometry + -ic.]
Of or pertaining to photometry. photometric bench = photometer bench.
1849Lit. Gaz. 24 Feb. 132/1 He [Grove] had tested by the photometric method of equality of shadows the intensity of the light as compared with a common wax candle. 1869Dunkin Midn. Sky 175 Interesting photometric experiments..on the relative light of the principal stars. 1875Bennett & Dyer Sachs' Bot. 663. 1894 G. W. & M. R. Patterson tr. Palaz's Treat. Industr. Photometry iv. 178 The photometric bench is an optical bench strongly and carefully constructed. 1966Large & Wilman in Hewitt & Vause Lamps & Lighting vii. 89 Where measurements involving direction and distance are concerned a photometric bench is required.
So photoˈmetrical a., dealing with photometry; made or measured by a photometer; photoˈmetrically adv., according to photometry, by means of a photometer; photometrician |-ˈɪʃən|, photometrist |-ˈtɒmɪtrɪst|, one who practises photometry.
1833Herschel Astron. xii. 375 A numerical estimate, grounded on precise *photometrical experiments, of the apparent brightness of each star. 1864Daily Tel. 16 Sept., The photometrical standard [of gas-light] is more than twice as high in many other places than it is in London.
1854Brewster More Worlds v. 95 In measuring *photometrically the light of these three different structures. 1883Athenæum 16 June 766/2 Method of determining the magnitudes of stars photometrically.
1870Proctor Other Worlds v. 143 The estimates of Zöllner, the eminent *photometrician, serve to show..that Jupiter sends more light to us..than a planet of equal size and constituted like Mars, the moon, or the earth, could possibly reflect to us if placed where Jupiter is.
1867W. R. Bowditch Coal Gas iii. 67 The best way for a *photometrist to be certain of his instruments is to test them himself. |