Refractometers | Photonics Buyers' Guide

Photonics Buyers' Guide > Refractometers

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(13 companies)

Refractometers A refractometer is an instrument used to measure the refractive index of solids and liquids. Several types exist, the most common being the Abbe refractometer.

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TRIOPTICS GmbH - Wedel, GermanyThe Whole Spectrum of Optical Metrology Since 1992 TRIOPTICS GmbH has been a leading manufacturer of optical test equipment for industrial and scientific use. The company has focused on research and development of accurate and automatic optical test and measurement instruments. The...
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Vermont Photonics Technologies Corp. - Brattleboro, VTOptical test, metrology and quality control equipment including the Elcomat autocollimator, collimators, spherometers, focometers, visual autocollimators, alignment telescopes, goniometers, divided-circle spectrometers, electronic autocollimators, alignment systems, refractometers, interferometers,...
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TERMS
refractometer An instrument used to measure the refractive index of solids and liquids. Several types exist, the most common being the Abbe refractometer.
Abbe refractometer Device which measures the index of refraction of glass as well as the dispersion over visible range.
index of refraction The ratio of the velocity of light in a vacuum to the velocity of light in a refractive material for a given wavelength.
Williams refractometer A refractometer that has a greater resolving power than a standard refractometer, and that uses a pentagonal prism to split the light from a single slit into two beams.
immersion refractometer A type of refractometer designed to measure the refractive indices of liquids. A section of the instrument is immersed into the sample being measured.
Jamin refractometer An instrument designed to measure the index of refraction of a gas by the interference patterns formed by two beams, one of which passes through a vacuum tube in which the gas is slowly released.

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