Professor Kazimieras Baršauskas Ultrasound Research Institute

Scientists and researchers of KTU Ultrasound Research Institute have extensive experience and know-how on development of new advanced ultrasonic measurement, imaging and non-destructive techniques for extreme conditions (high temperatures, strong radioactive radiation, high pressure and chemical activity), non-conventional applications of NDT, development of ultrasonic transducers, monitoring and quality control, biomedical applications.

 

Research areas

 

Scientific achievements and impact

Ultrasound research in Kaunas University of Technology has been conducted for more than 50 years. The majority of the R&D activity in the KTU Ultrasound Research Institute (KTU UI) is being organised through long-term projects, where all activity is planned in a very detailed way for the whole duration of the Project; the plan includes involvement of the research personnel, research development steps, funding of a particular activity, dissemination of the outcomes.

The Institute is proud of its achievements:

  • Over 50 years in the field of ultrasonic measurements and non-destructive testing
  • Over 100 techniques and instruments developed for various industrial and scientific applications
  • Over 150 patents
  • Over 1000 publications in internationally recognised scientific journals
  • Active involvement in master‘s and PhD studies
  • Ultrasonic transducers for operation under extreme conditions (high temperatures, strong radioactive radiation, high pressure and chemical activity)
  • Ultrasonic distance and displacement measurement methods
  • Ultrasonic transducers for specific applications
  • Ultrasonic non-destructive testing methods for objects possessing complex geometry
  • Guided wave signal processing and structural health monitoring methods
  • Automatic classification and defect detection methods

2017

Audrius Jankauskas. Ultrasonic Method for Measuring Defect Parameters in a Storage Tank Floor. Supervisor: L.Mažeika.

Kristina Andrėkutė. Development and Investigation of the Ultrasonic Measurement Methods for Diagnostics of the Melanocytic Skin Tumours. Supervisor: R.Raišutis.


2016

Vykintas Samaitis. Ultrasonic Methods for Structural Health Monitoring of Composite Objects. Supervisor: L.Mažeika.

Justina Šeštokė. Investigation of PMN-32%PT Piezoelectric Crystals and Their Application for Air-Coupled Ultrasonic Transducers and Arrays. Supervisor: R.Kažys.

Almantas Vilpišauskas. Development and Investigation of Method for Air Coupled Lamb Wave Excitation in Plate Structures Using Ultrasonic Array. Supervisor: R.Kažys.


2014

Regina Rekuvienė. Development and Investigation of Ultrasonic Method for Measurement of Density of Liquid Polymers. Supervisor: R.Kažys.


2012

Lina Draudvilienė. Measurement Methods for Determining the Parameters of Ultrasonic Guided Waves in Selected Solid Materials. Supervisor: L.Mažeika.

Laimonas Kairiūkštis. Application of Ultrasonic Arrays for Measurement of Defects’ Coordinates. Supervisor: R.Kažys.


2009

Artūras Maciulevičius. The Development and Investigation of Ultrasonic Method for Detection of Defects and Measurement of their Parameters in a Large Engineering Constructions. Supervisor: R.Kažys


2008

Andriejus Demčenko. Development and Investigation of Air-Coupled Ultrasonic Measurement Methods for Detection and Evaluations of Nonhomogeneities in Composite Materials. Supervisor: L.Mažeika.

Mindaugas Vilkickas. The Investigation of the Real-Time Ultrasonic Visualization Systems. Supervisor: R.Kažys.


2007

Egidijus Žukauskas. Air-Coupled Ultrasonic Measurement of the Defect Parameters in Aerospace Composite Materials. Supervisor: R.Kažys.


2006

Vaidotas Cicėnas. Investigation and Development of Contactless Surface Acoustic Wave Excitation Transducers. Supervisor: L.Mažeika.


2005

Renaldas Raišutis. The Development and Application of the Ultrasonic Measurement Methods for Investigation of the Multilayered Objects. Supervisor: R.Kažys.


2004

Darijus Pagodinas. Application of Ultrasonic Methods for Investigation of Strongly Absorbing Inhomogeneous Multilayer Structures. Supervisor: R.Kažys.


2002

Giedrius Armanavičius. Investigation of Quasi-Orthogonal Ultrasonic Signals and Its Application for Multi-Channel Distance Meters. Supervisor: R.Kažys.


2001

Vilma Giedraitienė. Investigation of Pipes Inner Structure by Lamb Waves. Supervisor: V.Sukackas.

Gintara Miglinienė. Investigation of the Structural Properties of Some Rare Earth Elements Salt Solutions Using Ultrasonic Method. Supervisor: B.Voleišienė.

Giedrius Poviliūnas. Measurement of Non-Stationary Flow of Viscous Liquids by Ultrasonic Methods. Supervisor: R.Kažys.


2000

Naglis Sajauskas. Experimental Investigation of the Acoustical Surface Longitudinal Waves. Supervisor: S.Sajauskas.


1999

Dalius Jucius. Investigation of Binary Flows by Electro-Acoustic Methods. Supervisor: P.Milius.

Elena Jasiūnienė. Use of Ultrasound Reflection Tomography for Determination of Defect Parameters. Supervisor: L.Mažeika.


1997

Jonas Ramanauskas. The Creation and Investigation of Acoustic Distance Measurement Methods and Means.

Virgilijus Minialga. Measurements of the Characteristics of Acoustic Signals and Fields by Coherent Optical Methods. Supervisor: S.Sajauskas.


1996

Vidas Zvanorius. Investigation and Development of the Acoustic Methods for the Thickness Measurement of Thin Layer Structures. Supervisor: S.Sajauskas.


1995

Olgirdas Tumšys. Measurement of Propagation Velocity of Acoustic Signals in Large Volumes of High Temperatures Gas. Supervisor: P.Milius.


1992

Leonas Jakevičius. Development of Acoustic Methods for Measurement of the Non-Homogenous Fluids Properties. Supervisor: P.Milius.


1987

Gediminas Daubaris. The Time-of-Flight Methods for Dynamic Measurement of the Moving Medium. Supervisor: A.Ragauskas.

Kostantas Vainauskas. Investigation of the Diffraction Uncertainties and Its Correlation in the Ultrasonic Pulse Type Measurement Systems. Supervisor: V.Domarkas.


1986

Liudas Mažeika. Investigation and Development of Piezoelectric Transducers Operating in Non-Stationary Mode Using Finite Element Method. Supervisor: R.Kažys.

Alfonsas Vladišauskas. Development of Ultrasonic Methods and Instrumentation for Measurements of Mechanical Parameters of Biological Media. Supervisor: V.Domarkas.


1985

Jonas Butkus. Development of the Methods and Instrumentation for Measurement of Ultrasonic Parameters in High Temperature Gas Flows. Supervisor: P.Milius.


1983

Viačeslav Ananjev. Investigation and Development of Methods for Measurement of Absolute Ultrasonic Fields Values with Higher Resolution. Supervisor: V.Domarkas


1982

Vladimir Danilov. Development and Investigation of the Electronic Methods for Increasing of the Speed and Noise Robustness of Ultrasonic Flow Meters. Supervisor: V.Domarkas.

Birutė Voleišienė. Investigation of Ultrasound Velocity Dispersion in Aqueous Solutions of Lanthanide Salts by Interferometric Method. Supervisor: E.Jaronis.

Kazimieras Šeštokas. Investigation and Development of an Ultrasonic Wave Guide Type Profile Meters. Supervisor: V.Domarkas.


1981

Algirdas Tamulis. Investigation and Development of Electronic Instruments for the Investigation of the Properties of Non-Homogenous Media by Ultrasound. Supervisor: R.Kažys.

Reimondas Šliteris. Investigation and Development of the Methods Based on the Magnetoconcentration Effect for the Testing of Electro-Physical Characteristics of Semiconductors. Supervisor: A.Ragauskas.


1979

Gražvydas Leonavičius. Electronic Methods for Measurements of the Liquid Ultrasonic Properties in the 20kHz-30MHz Frequency Range. Supervisor: V.Ilgūnas.


1977

Kostantas Vytautas Bernatonis. Development and Investigation of the Acoustic Meters for the Investigation of Sheet Type Materials Mechanical Properties. Supervisor: R.Kažys.


1976

Arūnas Lukoševičius. Investigation of the Wideband Measurement Circuits for Ultrasonic Devices. Supervisor: R.Kažys.


1975

Antanas Ribikauskas. Electronic Measurement Methods of the Ultrasonic Parameters in Liquids. Supervisor: E.Jaronis.

Pranas Bernardas Milius. Development and Investigation of the Piezoelectric Transducers for Ultrasonic Devices with an Active Electronic Circuits. Supervisor: V.Domarkas, R.Kažys.

Algis Mašonis. Development and Investigation of Acoustical Short Distance Meters in Air. Supervisor: E.Jaronis, V.Domarkas.

Stanislovas Sajauskas. Development and Investigation of the Methods for Measurement of the Pulse Mode Ultrasonic Oscillations. Supervisors: E.Jaronis, V.Domarkas.

Algimantas Petrauskas. Investigation and Design of Transducers in Flexural Vibration for Ultrasonic Devices. Supervisor: V.Domarkas.


1974

Eugenijus Pileckas.Development and Investigation of Ultrasonic Echoscope Measurement Systems with Electrical Control of the Directivity. Supervisor: V.Domarkas.


1972

Vidas Sukackas. Theoretical and Applied Matters of the Constant Length Ultrasonic Interferometer. Supervisor: E.Jaronis.


1970

Albinas Tamašauskas. Ultraacoustic Investigation of the Particular Liquids and Binary Normal Compounds. Supervisors: V.Ilgūnas, K.Paulauskas.

Rimantas Stripinis. Differential Ultrasonic Interferometer and Its Application for Investigation of Several Properties of Weakened Solutions. Supervisor: V.Ilgūnas.

Rymantas Jonas Kažys. Investigation of Main Characteristics of Ultrasonic Measuring Plate-Type Piezoelectric Transducers. Supervisor: V.Domarkas.


1967

Rimvydas Povilas Žilinskas. Development of the Wideband Ultrasonic Interferometric System and Its Application for Measurement of Ultrasound Velocity and Attenuation in Liquids. Supervisors: K.Baršauskas, E.Jaronis.

Vladislavas Domarkas. Investigation of the Wideband Ultrasonic Interferometric System and Its Application for Measurement of Ultrasound Velocity Dispersion in Several Liquids. Supervisor: E.Jaronis.


1966

Kalikstas Vytautas Paulauskas. The Precise Interferometric Method and Its Application for the Investigation of Ultrasound Velocity and Attenuation in Liquids. Supervisors: K.Baršauskas, V.Ilgūnas.


1965

Jonas Gilius. Influence of Ultrasound for Sugar Extraction from the Sugar-Beet.


1964

Ona Kubiliūnienė. Interferometric Measurement of Ultrasound Dispersion in Liquids. Supervisors: K.Baršauskas, V.Ilgūnas.


1958

Enrikas Jaronis. Application of Constant Length Ultrasonic Interferometer for Monitoring of Physical and Chemical Changes. Supervisor: K.Baršauskas.


1957

Vytautas Ilgūnas. Ultrasound Magnetic Dispersion in Electro-Conductive Liquids. Supervisor: K.Baršauskas.

 

Research infrastructure

  • Dual source XRAY micro computed tomograph RayScan 250E (RayScan Technologies GmbH, Germany). 10-230kV microfocus (focal point 3-250 µm) and 50-450kV minifocus tube (focal point 0,4mm)
  • Precise 6-axis (x, y, z, swivel, gimbal axes, turntable) and 11-axis (x1, x2, y1, y2, z1, z2, 2 swivel, 2 gimbal axes, turntable) cartesian and polar scanners with water tanks (2.0m × 1.5m × 1m and 2.5m × 1.5m × 1.5m) for air-coupled and immersion applications, (TecScan systems Inc., Canada)
  • High speed scanning acoustic microscope (up to 500MHz with scan field of 400mm × 400 mm) with special set of transducers for high frequency applications (up to 250MHz) (KSI GmbH, Germany)
  • Special set of high frequency transducers (up to 250MHz) for acoustic microscopy applications
  • Immersion NTR acoustic intensity measurement system (AIMS) that allows measuring and mapping of acoustic fields in liquids. Suitable for medical imaging, pulsed and CW Doppler, therapeutic devices and industrial ultrasound between 0.25 and 60 MHz. The set of needle and membrane type calibrated hydrophones (sensitivity up to 160 nV/Pa) and the appropriate software (ONDA)
  • Multi-channel ultrasonic phased array system Dynaray 64/256 (bandwidth from 0.20 up to 25 MHz, at -6 dB) (Zetec, Canada)
  • Multi-channel low frequency (32:128 channels, bandwidth from 30kHz to 2MHz at -3 dB with pitch-catch option) and medium frequency (128 channels, bandwith from 0.8MHz to 16MHz at -3 dB, pulse-echo) ultrasonic phased array systems Sitau (DaselSistemas, Spain)
  • Impedance analyzer Wayne Kerr 6500 B (operating frequency from 40 Hz up to 120 MHz) (Wayne Kerr Electronics, UK);
  • Stereo microscope with digital camera Olympus MVX10 (zoom range 7x-115x, maximum zoom 230x) (Olympus Corporation, Japan)
  • Heating and freezing microscope stage with system controller for material properties characterisation (Linkam Scientific Instruments, UK)
  • Precise 4-axis angular scanner for immersion and air-coupled applications (axial resolution of 1mm) (ADEPT, USA)
  • Precise 3 axis Cartesian scanner (x-y step 10 μm, z step 1 μm) with water tank (1.25m × 0.75m × 0.35m) for air-coupled and immersion applications (KTU UI, Lithuania)
  • Ultrasonic measurement, data acquisition and imaging systems Ultralab for low (up to 2 MHz), middle (up to 30 MHz) and high frequency (up to 50 MHz) applications (KTU UI, Lithuania)
  • Digital arbitrary waveform generators (up to 100 MHz) and digital oscilloscopes (up to 600 MHz) (Agilent technologies, USA)
  • Special set of ultrasonic transducers for NDT, material characterization and biomedicine (operating frequency from 0.03MHz up to 25 MHz) (KTU UI, Lithuania, Olympus Japan)
  • Calibrated hydrophones (ONDA) and microphones (Brüel & Kjær);
  • Out of plane laser vibrometer Polytec (Polytec, Germany).
  • Workstation type multi-processor (Intel Xeon and Core i7 family) computers for numerical simulations, like modelling using the finite element and the finite differences techniques
  • Omniscan MX flaw detector with ultrasound (M-UT-2C (0.25MHz to 32MHz) and MPA-161-128 phased array (0.75MHz to 18MHz)) and eddy-current (ECA4-32 phased array (20Hz to 6MHz)) modules (Olympus, Japan)
  • Set of UT phased arrays (central frequencies from 0.5 MHz up to 10 MHz, number of elements from 16 up to 128) (Olympus Japan; Imasonic, France)
  • Set of wedges for phased array probes (0° to 60°) (Olympus, Japan)
  • Set of eddy-current phased arrays (central frequencies from 2kHz up to 1.5 MHz, number of elements from 16 up to 32) (Olympus, Japan)

Civa software for numerical simulation of the ultrasonic non-destructive testing and guided waves (Extende, France).


Software Ultravision for data acquisition, processing and imaging (Zetec, Canada)


VGStudio MAX for the visualization and analysis of industrial computed tomography data (Volume Graphics GmbH, Germany)


Avizo Inspect for reconstruction and analysis of computed tomography images (FEI, France)


TecView UT data acquisition and analysis software for TecScan scanners (TecScan, Canada)


Software control for scanning acoustic microscope KSI Vision (KSI GmbH, Germany)


Software for simulation of ultrasonic fields and measurement processes (KTU UI, Lithuania)


Stand-alone computer software program for computational ultrasonics Wave 3000 Plus (CyberLogic, USA)


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Research projects

FP7 projects

Eurostars projects

A non-invasive expert system for diagnosis of intraocular tumors / NICDIT (2008-2011. Prof. dr. R.Raišutis)
Diagnosis of skin cancer Based on information and communication technologies tools / SkinMonitor (2008-2012. Prof. dr. R.Raišutis)
 

Technological solutions

  • Technology for manufacturing of high-temperature ultrasonic transducers
  • Developed low cost in-line polymer inspection system to improve the use of recycled materials in plastics processing industry
  • Ultrasonic sensor-system for in-line density gradient determination of ceramic tiles
  • Automated spot weld inspection device for safe vehicle repair
  • Ultrasonic system for precise gas flow measurements.
 

Significant publications

Kažys, Rymantas Jonas; Šliteris, Reimondas; Šeštokė, Justina. Air-coupled low frequency ultrasonic transducers and arrays with PMN-32%PT piezoelectric crystals // Sensors. Basel : MDPI AG. ISSN 1424-8220. 2017, vol. 17, iss. 1, article 95, p. 1-20. DOI: 10.3390/s17010095.
Jasiūnienė, Elena; Žukauskas, Egidijus; Dragatogiannis, D.A.; Koumoulos, E.P.; Charitidis, C.A.. Investigation of dissimilar metal joints with nanoparticle fillers // NDT & E international. Oxford : Elsevier. ISSN 0963-8695. eISSN 1879-1174. 2017, Vol. 92, p. 122-129. DOI: 10.1016/j.ndteint.2017.08.005.
Kažys, Rymantas Jonas; Šliteris, Reimondas; Rekuvienė, Regina; Žukauskas, Egidijus; Mažeika, Liudas. Ultrasonic technique for density measurement of liquids in extreme conditions // Sensors. Basel : MDPI AG. ISSN 1424-8220. 2015, vol. 15, iss. 8, p. 19393-19415. DOI: 10.3390/s150819393.
Kažys, Rymantas Jonas; Mažeika, Liudas; Šliteris, Reimondas; Raišutis, Renaldas. Measurement of viscosity of highly viscous non-Newtonian fluids by means of ultrasonic guided waves // Ultrasonics. Amsterdam : Elsevier Science. ISSN 0041-624X. 2014, Vol. 54, iss. 4, p. 1104-1112. DOI: DOI:10.1016/j.ultras.2014.01.007.
Raišutis, Renaldas; Kažys, Rymantas Jonas; Mažeika, Liudas; Žukauskas, Egidijus; Samaitis, Vykintas; Jankauskas, Audrius. Ultrasonic guided wave-based testing technique for inspection of multi-wire rope structures // NDT & E international. Oxford : Elsevier. ISSN 0963-8695. eISSN 1879-1174. 2014, Vol. 62, p. 40-49. DOI: 10.1016/j.ndteint.2013.11.005.
Kažys, Rymantas Jonas; Šliteris, Reimondas; Raišutis, Renaldas; Žukauskas, Egidijus; Vladišauskas, Alfonsas; Mažeika, Liudas. Waveguide sensor for measurement of viscosity of highly viscous fluids // Applied physics letters. Melville : AIP Publishing. ISSN 0003-6951. eISSN 1077-3118. 2013, vol. 103, iss. 20, article 204102, p. 1-4. DOI: 10.1063/1.4829639.
Jasaitienė, Daiva; Valiukevičienė, Skaidra; Linkevičiūtė, Gintarė; Raišutis, Renaldas; Jasiūnienė, Elena; Kažys, Rymantas Jonas. Principles of high-frequency ultrasonography for investigation of skin pathology // Journal of the European Academy of Dermatology and Venereology. Malden MA : Wiley-Blackwell. ISSN 0926-9959. 2011, vol. 25, iss. 4, p. 375-382. DOI: 10.1111/j.1468-3083.2010.03837.x.
Raišutis, Renaldas; Kažys, Rymantas Jonas; Žukauskas, Egidijus; Mažeika, Liudas. Ultrasonic air-coupled testing of square-shape CFRP composite rods by means of guided waves // NDT & E international. Oxford : Elsevier. ISSN 0963-8695. 2011, Vol. 44, iss. 7, p. 645-654. DOI: 10.1016/j.ndteint.2011.07.001.
Raišutis, Renaldas; Kažys, Rymantas Jonas; Žukauskas, Egidijus; Mažeika, Liudas; Vladišauskas, Alfonsas. Application of ultrasonic guided waves for non-destructive testing of defective CFRP rods with multiple delaminations // NDT & E international. Oxford : Elsevier. ISSN 0963-8695. 2010, Vol. 43, iss. 5, p. 416-424. DOI: 10.1016/j.ndteint.2010.04.001.
Kažys, Rymantas Jonas; Voleišis, Algirdas; Šliteris, Reimondas; Mažeika, Liudas; Van Nieuwenhove, Rudi; Kupshus, Peter; Abderrahim, Hamid Ait. High temperature ultrasonic transducers for imaging and measurements in a liquid Pb/Bi eutectic alloy // IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control. New York : IEEE Ultrasonics, Ferroelectrics, and Frequency Control Society. ISSN 0885-3010. 2005, Vol. 52, no. 4, p. 525-537.
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