VIBRATIONS MEASUREMENT METHOD Russian patent published in 2014 - IPC G01H9/00 

FIELD: measurement equipment.

SUBSTANCE: invention relates to measurement equipment. Investigated object is covered with reflective marks of round shape. Binary images of marks and traces of their vibrational blurring are formed. In the absence of vibrations, determined are coordinates of centre of gravity of each mark, its square and radius by square. Two additional matrixes are formed. Each matrix consists of fragments. Centre of gravity coordinates of each fragment are aligned with centre of gravity coordinates of corresponding mark. For each mark, formed are intersection areas, calculated are total quantity of intersection areas of a mark and quantity of intersection areas of a mark, which centres of gravity coincide with the mark centre of gravity, determined are coordinates of centres of gravity of intersection areas of a mark, which do not coincide with the mark centre of gravity, and among them found is the centre of gravity, distance from which to the mark centre of brevity is maximum, it is recorded as the centre of gravity of the most remote from the mark and its intersection areas. Half-width of mark vibrational blurring trace is determined as product of marks intersection areas quantities, which centres of gravity coincide with the mark centre of gravity, and ring width. Direction of projection of a mark vibration displacement amplitude vector is determined as intercept tilting angle connecting the mark centre of gravity with the centre of gravity of the most remote from it intersection area of the mark. Value of this projection is determined as the difference between length of this intercept and half-width of mark vibrational blurring trace.

EFFECT: enlarging functional capabilities.

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