Patent ID: 11959850
Assignee: THE YOKOHAMA RUBBER CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 8:
9. A method, for evaluating ozone deterioration of a vulcanized rubber material, in which a test sample of a vulcanized rubber material is placed under a preset placement condition in a test tank having a predetermined ozone concentration and a change over time in a surface state of the test sample is determined, the method comprising:
acquiring detection data by detecting, over time, with a laser sensor disposed facing a surface of the test sample that has been placed in the test tank, a distance from the laser sensor to the surface;
acquiring image data, which is digital data, by capturing at a fixed point, over time, images of the surface of the test sample with at least one camera device;
storing each of the image data in a database of a storage unit;
automatically determining, by comparing indication data indicating a degree of progression of ozone deterioration stored in the storage unit and each of the image data by using a computation device, the degree of progression of ozone deterioration with respect to the surface state of the test sample in each of the image data, based on the indication data; and
determining a change in the surface state of the test sample between a plurality of points in time, based on the detection data, wherein
the change in the surface state of the test sample between the plurality of points in time being determined additionally based on the image data.