MODE OF CONTROLLING THE STRUCTURE OF A PRODUCT Russian patent published in 2006 - IPC G01B5/30 

FIELD: the invention refers to un-destructive method of controlling the structure of a product.

SUBSTANCE: it is designed for uninterrupted indication of structural changes in the product emerging under the pressure of exterior or interior factors and also of the environment and efforts applied to the product and may be used for operative detection of location of the defects of the product for example flexible hoses of the flexible pipes of high pressure, pumping rods and the like products. On the surface of the product a controlling line and at least one more controlling line distinguishing in exterior appearance from the first one are drawn on. At that the controlling lines may have various forms of inscription, of thickness and of color. Receipt of data about changing of the structure of the product appeared under the influence of exterior or interior factors is determined on changing of the attitude of the lines relatively to each other and/or in accord with the character of changing of the exterior appearance of controlling lines and/or on changing the location of points of crossing of the controlling lines.

EFFECT: provides possibility of getting of a visual picture and space localization of changes of the structure of the product.

9 cl, 18 dwg