TECHNOVOTUM - development and production of equipment and technologies for non-destructive testing (NDT)

Tomographic 2.4, FPC Industry Standard 1.11.001-2011



Application "Tomographic 2.4" implements the combined ultrasonic testing of cargo vehicle wheel sets in accordance with requirements of the FPC Industry Standard 1.11.001-2011 "Nondestructive testing system in the OJSC "FPC". Elements of wheel sets of passenger vehicles of 1,520 mm track gage. Ultrasonic testing requirements".

Specialized technique of "Tomographic 2.4" provides the following:

  • manual ultrasonic testing of wheel set axles under method options AR1.1, AR1.2, AR1.3, AR1.4, AR1.5, AR2, AR3, AR3.1, AR3.2, AR4, AR5.1, AR5.2, AR5.3, ТR1, ТR2;
  • mechanized ultrasonic testing of wheel set axles under method options ВR1, ВR2, ВR3, ВR4;
  • mechanized ultrasonic testing of the wheelset wrought wheels under method options DR1.1, DR1.2, DR2.1, DR2.2, DR3.1, DR3.2, DR3.3, WR;
  • manual ultrasonic testing of the wheelset wrought wheels under method option DR4.


Mechanized ultrasonic testing of the wheelset wrought wheels is performed using the scanning device USK-5ТМ and ensures control of required zones for single revolution with possibility of tomographic imaging and determination of coordinates of defective area.
If required, scanner USK-5ТМ is equipped with eddy-current probe to reveal manufacturer’s marks in order to prevent the over reject of wheels (false flaw responses in the marking area). Due to built-in multi-channel system, ultrasonic and eddy-current probes operate simultaneously.

Mechanized ultrasonic testing of wheel set axles is performed using scanning device USO-1ТМ in the area ahead of wheel seat and ensures control of required zones without dismantling of axle box for single revolution with possibility of tomographic imaging and determination of coordinates of defective area. For preliminary preparation of tested surface (cleaning from operational pollution), потребителю mechanical scanner of cleaning UOO-1T with replaceable cartridges (knives) is offered to user.
During ultrasonic testing of wrought wheels and wheel set axles using scanning devices USK-5ТМ and USO-1ТМ, A-scan of current area is displayed on the flaw detector screen with all PEP’s within composition of scanning device in operation. During testing, data on all PEP’s (device movement over tested object) is displayed on С-scan.

Concept of the "Tomographic 2.4" application is oriented toward maximal deemphasizing of human factor by means of implementation of following functions:

  • automatic gain control allows user not to spend time for selection of required gain.
  • acoustic contact tracing;
  • full PEP monitoring;
  • automatic tuning out of structural noises;
  • visualization of flaws, including equivalent area, location depth and spatial orientation.

Special software “Railway NDT operator AWS” supplied with Tomographic UD4-ТМ flaw detector allows documentation of test results, their storing in electronic database and preparation of the wheel set certificate. Also, at delivery, training demo clips on operation with specialized applications are built-in in the instrument and facilitates significantly familiarization with instrument.