Photoelastic instrument

Application range

The dynamic photoelastic experiment method is an optical measurement method that uses optically sensitive materials to make a model similar to the real object, irradiates with circularly polarized light under the action of dynamic load, and directly records the stress contours of the model on the imaging floor. It can truly reflect the information and laws of the blasting process. The state-of-the-art photoelastic method to study the dynamic stress and stress wave propagation law in an elastic body can provide an experimental basis for the theoretical research and engineering application of transient stress phenomena. For example, stress wave propagation and dynamic stress concentration under impact load, as well as crack propagation process and law in structures have made important contributions, and are widely used in many fields such as aerospace, machinery manufacturing, civil engineering and so on.

technical parameter

● Clear aperture: Φ100mm, Φ150mm, Φ200mm, Φ300mm, Φ500mm;

● Load: 0-500kg;

● Light source: LED light source;

● Effective diameter of 1/4 wave plate: Φ100mm, Φ150mm, Φ200mm, Φ300mm, Φ500mm;

● Effective diameter of polarizer (polarizer + analyzer): Φ100mm, Φ150mm, Φ200mm, Φ300mm, Φ500mm;

● Polarizer dial: 0-360°, the minimum scale value is 1° (can be equipped with motor drive);

● 1/4 wave plate scale: 0-360°, minimum scale value 1° (can be equipped with motor drive);

● Stress sensor and its digital display meter;

● Recording camera: 40 million pixels, color