The HSM38 polariscope is a bench top mounted frame which allows the study of stress patterns and photoelasticity resulting from geometrical changes in loaded mechanical models.
The frame has integral slides into which fit quarter wave plates and polarisation filters. These plates and filters can be rotated through 90° to vary the colourisation seen by the user.
The frame can sit on top of a light box (optional HSM38D) or overhead projector (not supplied). Rubber mounting feet enable it to sit firmly onto the light source.
A set of specimens is supplied and each one in turn is mounted into the loaded mechanism using quick connect joints. Specimens made from CR39 photoelastic material.The loading mechanism consists of a loading spring, dial gauge and screwjack for precise loading of the specimens. The loading mechanism can be adjusted to suit the length of the specimen using the quick release knobs supplied. 250N loading is achievable from the loading mechanism.
The unit comes supplied with specimens, quarter wave plates, polarisation filters, and a comprehensive instruction manual. A 2 year warranty is also offered.