Experimental And Demonstration Polariscope Description and Specifications for Lab Tenders
Experimental And Demonstration Polariscope.
Experimental And Demonstration Polariscope
It is placed on an overhead projector
(not supplied), with the image projected on to a screen, and, used
either in a laboratory or a lecture theatre, allows a striking
demonstration of the stress fields in the loaded models.
It is also designed for quantitative work for tensile, compressive or
flexural loading.
A system – unique to this unit – also allows the simultaneous rotation
of the polarizer and the analyser for the isoclinal lines study.
The Polariscope consists of the following elements :
A model-loading frame.
An elastic load-measuring device, which uses a steel spring beam, and a
micrometer dial gauge.
The device has a linear deflexion/load relation-ship.
A rotatable circular polarizing unit, in a graduated mount, carried on
runners under the loading frame.
A quarter ware plate.
A rotatable circular analyser can be rotated through 180°.
The three units are carried on a pillar integral with the loading frame.
The polarizer and the analyser are coupled so that they may turn
simultaneously.
A set of fixtures required for the application of the loads to all the
models supplied.
A set of models in the appropriate photo elastic material for example, a
disk, a ring, a beam, etc.
Polarizer diameter : 200 mm
Model loading area : 190 x 220 mm.
Light source : standard overhead projector source (white light).
Monochromatic light obtained with green
filter swung into path of light beam.
Maximum load on models : ± 40 kg.
Teaching objectives
Observation of the stress concentration.
Study of strength of materials.
Structures analysis in civil engineering
Fields of application
Strength of materials.
Structures, civil engineering and architecture.
Applied mechanics, machine design, and welding technology.
Soil mechanics.
Biomechanics.
Dimensions and weight
420 x 320 x 350 mm.
Net weight : 4 kg.
Essential requirements
Additional Equipment required.
Overhead projector.
Complementary equipment
Analogue field plotters, 24 channels .
This unit can be used in conjunction with the Polariscope for the
separation of the principal stresses
Mechanical Testing Lab equipment manufacturers,exporters and Mechanical Testing Lab suppliers