You searched for: “saccharimeter
saccharimeter
1. An instrument used to measure the concentration of sugar in a solution; for example, a polarimeter.

A polarimeter is an instrument used to measure the rotation of the plane of polarization of light as it passes through a substance; especially, a liquid or solution. It is an important tool in the analysis of sugar solutions.

2. An instrument that determines the concentration of sugar in a fermenting solution from carbon dioxide measurements.