Edge compression of a windshield. |
|
DeltaTherm The specimen is prepared with flat black paint and loaded cyclically to simulate the load level. The system measures the small changes in temperatures induced by the thermoelastic effect to create an image of the stress distribution. GFP 1200 A thin coating is applied with a special brush and the object is loaded statically or dynamically. The ability of the GFP system to accommodate static loading allows for much simpler loading mechanisms including the use of dead weights or hand jacks. |
DeltaTherm The specimen is prepared with flat black paint and simply viewed with the infrared camera. The system measures the small changes in temperatures caused by the dynamic or vibrational deformation of structure after a transient loading. GFP 1200 A thin coating is applied with a special brush. The transient state of stress is frozen at an instant or a vibrational phase via a strobe light. |
Alternatively an assembled structure can be coated and taken apart. Upon removal of a component from the structure the negative assembly strains will be experienced. |
Stress Photonics has implemented a number of common thermal NDE techniques in the DeltaTherm product. In addition, Stress Photonics has invented and co-developed special thermal NDE techniques for crack and flaw detection. Please contact a Stress Photonics representative to discuss your requirements. |
The real-time output of the GFP 2000 has a specific and comprehensive adaptation for on-line monitoring of manufacturing processes. In the case of glass manufacture continuous monitoring of the residual stress along the edge of glass products provides 100% inspection capability. |
|
DeltaTherm The specimen is prepared with flat black paint and simply viewed with the infrared camera. The system measures the small dynamic changes in temperatures caused by the thermoelastic effect to create an image of the stress distribution. GFP 1200 A thin coating is applied with a special brush. The vibrating component is viewed with a strobe light to measure the stresses in a particular phase. |