The department was set up in 1972 under the leadership of Prof. Bozhko Aleksandr Yevgenyevich, and it is staffed with highly qualified specialists. The results of basic and applied research are presented in 17 monographs, 730+ papers and 255 inventions. The developments have been implemented in power machine, engine and ship building, and in the aerospace industry.
It is intended to determine the level of quality of soldering controlled compounds is based on the experimentally established the connection between the device and the testimony of quality of soldering these compounds.
The principle of operation of the device is based on the method of eddy currents. Parameter control is the voltage measurement of transformer winding eddy current transducer core asymmetric П-shaped type, the value of which depends on the state-controlled solder joint.
Control of quality of soldering copper interconnect thickness, mm up to 20
The range of values of controlled of quality of soldering, % from 0 to 100
The ability to hot-swap (changing sizes controlled connects) eddy current probes
Display results in digital form with the ability to set and store information (1000 memory locations)
Data transfer to PC via USB port
Sound and light alarm "rejection" level
Autonomous power (batteries)
Overall dimensions of the device, mm 190×90×40
Mass device kg, not more than 0,5
For synchronous generator unit provides quality control of solder joints "sleeve - stator winding", an important parameter that affects reliability. Degree of quality of soldering compounds in percentage is displayed on the digital display. Smart algorithm of the device allows you to customize its settings according to the control objectives.
Companies producing electrical products.
The device has been tested at the state enterprise plant “Electrotyazhmash”.
Contact Information: Polishchuk Oleg Fedorovich Tel: +38(057) 349-47-14 Fax: +38(0572) 94-46-35 Е-mail: firstname.lastname@example.org
Microprocessor-based device – diahardprofilometer ensures simultaneous complete control, efficient determination and selection of optimal parameters of initial roughness, microhardness and form deviation or work surfaces arrangement during their making, operation or repair, promotes developing the new energy-saving computer technologies of optimal treatment of these surfaces.
The proposed technology replaces replica or visual methods of in-process measurements of surfaces irregularities of different details, allows to get the total evaluator of surfaces condition of manufactured articles with the help of one device - diahardprofilometer With the help of this device it is possible to define and set energy saving industrial regimes and also their sequence, which subject to current status of processing equipment, tooling can provide quality of treated surfaces under the condition of minimal allowance of work material and their productive time.
This technology can be applied at enterprises where grinding or other surface treatment is carried out, also in measuring laboratories, certification centers and etc.
Developed devices can be applied both in Ukraine and abroad, particularly, in European countries, USA, Canada, CIS, China, India and others.
The first industrial consignment has been produced and applied at state enterprise “Electrotiajmash”
The device is intended for measuring the micro and macro geometric parameters of the roughness of any plane or cylindrical hard-to-access surfaces of different parts. The inspection is a direct in-process one and can be applied in any production process using grinding or any other kinds of machining methods. The compact, stand-alone device can be used for measuring not only the micro geometric parameters of a part’s surface, but to check its diameters at the same time. The instrument replaces the visual and replica methods of in-process inspection.
The minidiaprofilometer includes the following:
• A miniature mechanical unit of the clock type with a magnetic induction speed regulator based on a permanent magnet
• A mechanical unit with photo and piezodetectors, and resistive sensors
• A portable electronic digital indicator unit
• Certified roughness gages for calibrating and adjusting the device
• A coaxial cable.
Range of measurement of parameter Ra, µm 0.02 to 10
Reduced measurement error, %, max 5 to 10
Feeler travel during measurement, mm 6
Base measuring line sections, mm 0.25; 0.8 and 2.5
Supply voltage, V
- Storage battery option 15
- Mains supply option 220, 50 Hz
Overall size, mm
- Mechanical unit (along measurement line), d 3.5
- Electronic unit 70x140x170
Warranty term, years 3
The instrument’s mechanical unit is protected by documents of title. Application of the instrument provides the following advantages:
1. Effective usage of production space; extending the service life of abrasive and cutting tools by reducing machining time; more accurate finishing of surfaces being machined with respect to roughness and diameters specified in drawings.
2. Detect and eliminate on spot any maladjustment of grinding machines and other machine tools.
3. Reduce the number of reject parts.
4. Increase the service life of different mating parts by complete inspection of micro and macro geometric parameters.
5. Do away with the practice of using roughness and internal gauges at the workplace.
6. Simplify certification of manufactured products.
The instrument can be used not only in production, but also in metrological laboratories and certification centres. The tentative cost of the device is 7,000 USD.
Developed the principles of building resonance vibration testing systems based on electrodynamic vibration beds with forced control.
Offered methods for structural analysis of reliability of power machinery with account of its loading and the dynamic strength of its elements, and obtained expressions for defining the reliability indices of parts and systems operating under cyclic mechanical load conditions.
Developed the principles of building vibration condition monitoring and emergency protection systems.
Developed the applied theory and principles for selecting the power of electromagnetic vibration exciters.
Developed the principles of setting up and conducting vibration reduction of residual stress.
Has developed systems for electromagnetic excitation of mechanical vibrations in melts for casting processes.
Offers methods and means for defectoscopy of products made of electrically conducting and dielectric materials.