DAMAGE DEGREE OF OBJECT DETECTING METHOD Russian patent published in 2008 - IPC G01N3/42 

FIELD: testing technique.

SUBSTANCE: method comprises steps of acting upon part of object by means of indenter at predetermined pitch and load; performing predetermined number of measurements for determining micro-hardness values; measuring micro-hardness of object in real working condition successively at first during initial period and then during further period after predetermined time interval of object operation; dividing values of micro-hardness received during said periods by equal intervals and plotting for initial period and for further periods respective histograms of distribution of measured micro-hardness values; in each histogram registering for each micro-hardness interval number of measurement results in given interval taken as percentage value of total number of measurements realized respectively during initial and further time intervals; then numerating micro-hardness intervals in histograms beginning from numeration of initial time interval while successively and continuously going on in histogram of next time interval; evaluating quantity of object damage degree during operation period between further and initial time intervals according to factor of accumulated damages of object and calculating said quantity by comparing histograms for initial and further time intervals with use of given formula.

EFFECT: enhanced accuracy, lowered labor consumption of balancing object.

2 cl, 1 dwg