Quick Answer: The Polarimeter measures the rotation of plane-polarised light by solutions of optically active substances, using a 6 V tungsten source, polarising and yellow filters, a 150 mm sample tube and a rotatable analyser with a 0-360 degree scale.
Last updated: October 2026
Key Features
Steel box with a 6 V, 0.3 A tungsten bulb in the base
Light passes through a polarising filter and a yellow filter to the sample tube
Rotatable analyser with a fixed 0-360 degree scale in the top panel
Tube support finished in matt black inside to reduce internal reflections
Hinged door for sample tube access; illuminator slides out for bulb changing
Supplied with polarisers, yellow filter, sample tube and instructions
Technical Specifications
Specification
Value
Illumination
6V, 0.3A tungsten
Sample tube
(L)150mm x (D)15mm
Analyser scale
0-360 degree, extinction at 0/360 degree and 180 degree
Dimensions
(H)270mm x (W)100mm x (D)100 mm
Body
Steel
About This Product
A solution of an optically active substance is placed in the sample tube, and the analyser is turned against its fixed scale to measure the rotation of the polarised light. The tube support is held in position by a pair of 4 mm plugs and sockets. Spare polarimeter tubes and filters are available separately.
Frequently Asked Questions
Q1. How is the bulb changed? The illuminator unit slides out of the steel body for bulb changing.
