FAQ: Polarimeter

What is the relationship between the measured optical rotation and the sample temperature?
What is the relationship between the International Sugar Scale and Brix? Also, what is Brix (or purity)?
In the food industry, a refractometer is used to measure sugar concentration. How do I decide between using a refractometer and a polarimeter?
It seems that a polarimeter is widely used in the sugar industry. What is the purpose of the instrument? In addition, is it possible to measure a colored test sample for sugar with a polarimeter?
For what purpose is the polarimeter used in the pharmaceutical industry? Which department within a pharmaceutical company would use this product?
How about in the food industry?
There are demands for process polarimeters. Is it possible to address such demands?
The maximum cell length of the SEPA-500 is 100 mm. Some manufacturers boast a maximum cell length of 200 mm cell, but is such a cell necessary?