Vaisala K-PATENTS Process Refractometers provide in-line solids and density measurement for liquids for process control and industrial automation.
Vaisala K-PATENTS Process Refractometers are commonly used to determine the liquid concentration or density. This measurement has been an essential element in the processing industries for over a century in all sectors, including refining, paper production, pharmaceuticals, food and beverage, and chemical manufacturing. ,
The measurement principle is critical angle measurement. The refractometer has three main components: a light source, a prism, and an image detector.
The light source sends light rays to the prism and process interface at different angles. Rays with a steep angle are partly reflected in the image detector and partially refracted to the process. The angle from which the total reflection starts is called the critical angle. A CCD camera detects a bright field and a dark field corresponding to partly reflected light and totally reflected light. The borderline position between the bright and the dark area correlates with the critical angle which is a function of the refractive index and therefore correlates with the concentration of the solution.
For more information in New Jersey, New York, Pennsylvania, Delaware, Ohio, West Virginia and Western Maryland contact Miller Energy. Call 800-631-5454 or visit https://millerenergy.com.
