1. A refractometer is the instrument used to measure refractive index. 2. For such purposes, it is usually measured by using a refractometer . 3. Modern refractometers have the option of a built-in peristaltic pump. 4. Water content can easily be measured with a refractometer . 5. The refractometer allows for in situ measurements of oil concentration within industrial plants. 6. Refractometers are still commonly used for fruit juice.7. Refractometers are often used in pharmaceutical applications for quality control of raw intermediate and final products.8. There is also the Rayleigh Refractometer used ( typically ) for measuring the refractive indices of gases. 9. Multi-wavelength Abbe refractometers can be used to easily determine a sample's Abbe number. 10. A digital inline process refractometer sensor measures the refractive index and the temperature of the processing medium.
