TIRE TESTING

(Laser available at WV Facility)

HIGH Q CAN DO IT!!

Based on electronic Phase-Shearing. The test object (tire) is illuminated with coherent light from a laser diode array and then the shearogram is directly measured with a CCD camera. To show typical anomalies an interference image of the tire surface at normal pressure is stored. A second interference image of the deformed state at decreased pressure is subtracted from the stored image. The difference of these two conditions is displayed on the monitor. Typical anomalies are displayed by fringes on the monitor.

For documentation, the results can be directly printed or stored together with the test parameters. These resultes can be emailed or provided on CD/DVD.

Sample Sheagraph Scans