◆Purpose:
The instrument serves for measuring the refractive indices
no and mean dispersions NF-NC of transparent and translucent
liquids of solids, mainly the transparent liquid. Attaching
a thermostat to this instrument, the refractive indices
nD within the range of temperature 0oC-70oC can be measured.
Refractive indices and mean dispersions are one of the important
optical constants in substance, optical performance, purity,
concentration and dispersion etc. The instrument is capable
of determining the percentage of sugar content in sucrose
solutions. Therefore, this instrument has much wide use
available as one of the indispensable tools in petroleum,
oil and fat, pharmaceutical, paint, food, chemical and sugar
making industries as well as in factories, colleges and
research institutes concerned with geological survey.
