Refroctometer
Refroctometer is a comparatively inexpensive bud it is a necessary measuring device which is used of wine-growers and wine-makers. With putting an example on working glass and scrutiny it by the daylight a wine-maker has a good chance to determine a value of “Brix” (sugar content in a grape juice or in others fresh fruits) in present by observation it in a monocular and comparing it with a scale which is a visible by running a natural light through the refractometer. This effect we call refraction or total internal reflection. On this effect are based instruments for determination a ripeness wine, sugar content in Sugar beet, protection a refrigerating fluid from freezing and electrolyte density in an accumulator






