METHOD FOR CONTROL OF SERVICEABILITY OF NON-CERTIFIED EQUIPMENT FOR MEASUREMENT OF RESIDUAL STRESS WITH HELP OF TEST SAMPLES Russian patent published in 2009 - IPC G01B5/30 

FIELD: physics, measurement.

SUBSTANCE: invention is related to measurement equipment. On non-certified equipment, according to preset scale of residual stress depth, values of residual stress are measured for every test sample of batch made with regulated distribution of residual stress values. Distribution of residual stress values in test samples is registered depending on depth of residual stress location. Residual stress measurement results are statistically processes for every value of preset scale of residual stress depth. Control characteristics received after statistical processing for this batch of test samples are compared with control characteristics that have been previously received with the help of test samples from the same batch and with application of the same residual stress depth scale on certified equipment. Comparison results are used to judge on serviceability of non-certified equipment for measurement of residual stress.

EFFECT: increased accuracy of measurement.

5 cl, 5 dwg