METHOD OF NONDESTRUCTIVE CHECK OF UNITS IN RAILWAY CAR TROLLEYS AND DEVICE FOR ITS REALISATION Russian patent published in 2013 - IPC G01N29/04 

FIELD: measurement equipment.

SUBSTANCE: sources of acoustic oscillations are placed onto a surface of a monitored object, acoustic oscillations are introduced into a monitored object, attenuating acoustic oscillations reflected from a defect are received and recorded, by means of laser scanning, measurement results are converted into an electric signal with subsequent electronic processing of produced signals, also with application of a computer controlled by a special program, to memorise results of processing in the memory of the computer processor and possibility of their display. At the same time location of the source of acoustic oscillations and received of reflected acoustic signals on the surface of the monitored object, is selected depending on the design of a specific monitored unit; introduction of acoustic oscillations into the monitored object is carried out by applying mechanical strikes in a certain zone, depending on a type of a specific object; reception of reflected acoustic signals is carried out by means of a titanium needle installed in an elastic element, being simultaneously a modulator of an optical system of a laser scanner, and the special program for realisation of computer processing of measurement results is developed using a wavelet analysis.

EFFECT: provision of universality and expansion of functional capabilities of a device, simplification of its design and a system of control process management.

5 cl, 6 dwg