单词 | polarimeter |
释义 | polarimetern. Science. An instrument for measuring the degree of polarization; esp. one for determining the amount of rotation of the plane of polarization by a substance through which polarized light passes. ΘΚΠ the world > physical sensation > sight and vision > optical instruments > instruments to refract, etc., light > [noun] > polariscope polariscope1829 polarimeter1843 saccharometer1866 saccharimeter1874 tourmaline pincette1888 tourmaline tongs1888 1843 Abstr. Papers Royal Soc. 1837–43 4 306 The following papers were read, viz. 1. ‘On the Compensations of Polarized Light, with the description of a Polarimeter for Measuring Degrees of Polarization.’ By Sir David Brewster. 1869 Eng. Mech. 24 Dec. 357/3 The detection..may be effected with the polarimeter, as pure glycerine has no action upon polarised light. 1899 J. Cagney tr. R. von Jaksch Clin. Diagnosis (ed. 4) v. 162 The rotatory power of each of the four fluids is ascertained by means of the polarimeter. 1979 Sci. Amer. May 63 (caption) Polarization is monitored..by polarimeters that measure the left-right asymmetry in scattering events. 1996 Nature 15 Aug. 588/1 We have developed an imaging polarimeter system that can routinely record the Sun's spectrum with a precision of 10−5 in the degree of polarization. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.1843 |
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