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| Using this Transmitted Light Polariscope, photoelastic experiments can be performed. This process exploits the fact that the refractive index of photoelastically sensitive materials changes under mechanical stress. Transmitted polarised light experiences a rotation of its plane of polarisation, this results in lines in the material subject to the same stress being of the same colour. The distribution of the stress in the model can thus be clearly seen. The polariscope can either generate coloured stress diagrams using white light or, using monochromatic light, light-dark diagrams. The filters, which have angular scales, can be rotated in a holder mounted on rollers. On the side is a pointer using which the angular position can be read off. Light sources, polarisation filters and load frames are separate components on this unit. Thus it is possible to realise flexible experimental set-ups also with own models. |
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Learning Objectives / Experiments |
· Mechanical loading of suitable models with tensile or compressive forces
· Generation and investigation of stress diagrams |
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Features
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Performance of photoelastic experiments on mechanically loaded models, generation of stress diagrams
Two light sources for a choice of monochromatic or white light
Large filter for ease of observation, also from a distance |
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Available accessories
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FL 200.01 -- Set of 5 Photoelastic Models with Clamping Elements
FL 200.02 -- Arch Model with Clamping Elements
FL 200.03 -- Crane Hook Model with Clamping Elemements
FL 200.04 -- Photoelastic Model Simultaneous Testing of Notches, 3 Models and Clamping Elemements
FL 200.05 -- Set of 3 Models with Different Notches
FL 200.06 -- Photoelastic Model Stress on Weld Seams
FL 200.07 -- Photoelastic Model Wrench with Clamping Elements
FL 200.09 -- Device for Determining of Photoelastic Sensivity
FL 200.12 -- Model Material in Plates 650x400x10 mm
FL 200.81 -- Ring Force Gauge 200 N
FL 200.82 -- Ring Force Gauge 500 N
FL 200.83 -- Ring Force Gauge 1000 N
FL 200.84 -- Ring Force Gauge 2000 N
FL 200.85 -- Ring Force Gauge 5000 N
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Alternative products
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FL 210 -- Overhead Polariscope
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| Specification |
[1] Table-top unit for performing photoelastic experiments with mechanical models
[2] A fluorescent tube and two light bulbs for generating white light
[3] Sodium vapour light for monochromatic light (colour - yellow)
[4] Polarisation filter mounted on rollers, without stop, can be rotated as required
[5] Polarisation filter and quarter wave plates, edges with plastic protection
[6] Angle scale on each frame
[7] Load frame that can be adapted to suit specific models w x h 600x750mm
[8] Generation of tensile and compressive loads |
| Technical Data |
Light box with white lens, one fluorescent light and two light bulbs for generating white light
Sodium vapour light for generating monochromatic light, colour - yellow
Polarisation filter diameter: Ø425mm
Dimensions of the load frame
w x h: 600x750mm |
| Dimensions and Weight |
l x w x h : 800 x 600 x 750 mm
Weight : approx. 50 kg |
| Connections |
| 230V, 50/60Hz, 1 phase or 120V, 60Hz, 1 phase |
| Scope of Delivery |
1 load frame with loading device, 2 polarisation filters, 2 quarter wave filters, 1 light source,
1 instruction manual |
| Order Details |
021.20000 FL 200 Transmitted Light Polariscope
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