LLH-150 LED Digital Photoelasticity was latest developed by our company ,with 150mm aperture ,the polarizer, analyzer and two circular polarizer can manual synchronous rotate. It can be widely used in scientific research and teaching experiment .

Main Technical Specification:

1.Aperture：150mm

2.Load：0～150kg(resolution：5‰)

3. light source：LED light source

4. 1/4 wave plate effective diameter：150mm

5.Linear polarizing filter （polarizer+polarization analyzer）effective diameter：150mm

6.Linear polarizing filter dial：0~360°，minimum scale value 1°

7. 1/4 wave plate dial: 0~360°，minimum scale value 1°

8.Image collection:  import Color video camera

9. mechanical sensor and Digital Indicator

Principle diagram：

                  The principle diagram of the photoelastic apparatus light path

                      Monochromatic light stripe / Mixed light stripe

Experimental schematic And application scope:

        The stress birefringence properties, transparent plastic model can be made in engineering machinery parts, and then simulate the stress components, observation, analysis of color and pattern of polarized light interference, so as to determine the stress distribution within part.

Disk under diametral compression experiment:

U piece of bending combination experiment

  

Pure bending beam experiment：

NOTE: Photoelastic method is intuitive, can directly display the stress concentrated area, and provide the accurate stress concentration values;It not only can get convenient stress but also the internal stress of the  structure . Especially this method is not constrained to the shape or load; it also can analyze the engineering structure stress.