refractometer


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refractometer

 [re″frak-tom´ĕ-ter]
1. an instrument for measuring the refractive power of the eye.
2. an instrument for determining the indexes of refraction of various substances, particularly for determining the strength of lenses for spectacles.

re·frac·tom·e·ter

(rē'frak-tom'ĕ-ter),
An instrument for measuring the degree of refraction in translucent substances, especially the ocular media. See: refractive index.
[refraction + G. metron, measure]

refractometer

/re·frac·tom·e·ter/ (re″frak-tom´ĕ-ter)
1. an instrument for measuring the refractive power of the eye.
2. an instrument for determining the indexes of refraction of various substances, particularly for determining the strength of lenses for spectacles.

refractometer

[rē′frəktom′ətər]
Etymology: L, refringere, to break apart; Gk, metron, measure
an instrument for measuring the refractive index of a substance, used primarily for measuring the refractivity of solutions. See also refractive index.

re·frac·tom·e·ter

(rē'frak-tom'ĕ-tĕr)
An instrument for measuring the degree of refraction in translucent substances, especially the ocular media.
See also: refractive index
[refraction + G. metron, measure]

refractometer 

1. An instrument for measuring the refractive index of transparent objects. There exist several types: Abbé's refrac-tometer, which is based on the measurement of the critical angle at the interface between a sample and a prism of known index of refraction and uses white light whereas that of Pulfrich, which is based on the same principle as Abbé's, uses monochromatic light. As the refractive index of some materials is related to their water content, the handheld Atago CL-1 Soft lens Refractometer has been calibrated to provide a reading of the percentage of water content of soft contact lenses.
2. See optometer.

refractometer

1. an instrument for measuring the refractive power of the eye.
2. an instrument for determining the indexes of refraction of various substances.
3. an instrument for measuring the concentration of solutes, e.g. protein in solutions, immunoglobulins in serum.
References in periodicals archive ?
It was thus demonstrated that an experimenial evaluation of the degree of conversion of a thermosetting resin could be obtained using a Fresnel refractometer even under anisothermal conditions.
Refractometer and osmometer measurements of the Hispaniolan Amazon parrot urine were highly correlated (r = 0.
The THP concentration was determined using a Reithert VET 360 analog blood animal protein refractometer and was measured in grams per 100 mL.
Calibration of the refractometer also is an easy task, but requires a bit of care.
After skimming, the coolant is heated, pasteurized for 16 hours, cooled, filtered, checked with a refractometer, reconcentrated, and returned to the machine tools.
The refractometer is based on chemical principles and analytical chemistry being used in the lab.
will unveil the Waters GPC/Viscometry System, said to be the first gel-permeation chromatograph to be equipped with a viscometer and a refractometer.
A refractometer checks the stability of the mix in the tank to see that it's not compromised.
Non-corneal, scleral tonometry fits right in among mobile solutions such as VuPad-Ultrasound, SE500 Automated Perimeter, 2WIN Auto Refractometer and VisionFit Wearable Adaptive Refractor.
Labcell is adding the Bellingham+Stanley OPTi digital hand held refractometer to its range of instrumentation for the food and drink industries.
Abbey refractometer (Bausch and Lomb Model) was used to determine the [degrees]Brix.
A hand-held device called a Brix Refractometer can be used to measure the nutritional quality of food.