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单词 total reflectometer
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total reflectometer
1. In full total reflectometer. An instrument for determining the refractive index of a transparent solid (or liquid) by measuring the critical angle for total reflection. Also in extended use. Now rare.
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the world > physical sensation > sight and vision > optical instruments > instruments for measuring > [noun] > light or radiation
phaometer1747
photometer1779
diaphanometer1789
lucimeter1825
refractometer1842
Abbe refractometer1876
dietheroscope1877
reflectometer1879
radiomicrometer1887
holophotometer1888
flicker photometer1896
microphotometer1899
diffractometer1909
spot meter1952
photopolarimeter1971
the world > matter > physics > electromagnetic radiation > light > reflection > [noun] > instrument
Fresnel's rhomb1835
Fresnel('s) mirror or mirrors1874
reflectometer1879
gloss-meter1930
Brewster window1965
the world > matter > physics > electromagnetic radiation > light > refraction > [noun] > index of refraction > measurement of indices > instrument for
spectrometer1874
reflectometer1879
transmissometer1955
1879 Mineral. Mag. & Jrnl. Mineral. Soc. 2 57 The angle of total reflection is determined by means of a small instrument named a ‘Total-reflectometer’.
1898 E. W. Streeter Precious Stones & Gems (ed. 6) 315 An instrument called a Reflectometer has been introduced for the purpose of readily ascertaining the refractive index.
1935 Sci. Abstr. A. 38 1223 (heading) Ultrasonic total reflectometer to measure speed of sound and elastic constants of solids.
1966 R. Webster Pract. Gemmol. (ed. 4) vii. 63 Of prime important to the gemmologist is the method whereby use is made of a special optical instrument termed a refractometer, or, as it is sometimes called, a total reflectometer.
extracted from reflectometern.
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