Prof. Kazimieras Baršauskas Ultrasound Research Institute

We represent majority of ultrasonic research groups at Kaunas University of Technology, Lithuania. The ultrasound research in our university is counting more than 50 years of activity. Ultrasound research activities were initiated by prof. Baršauskas in 1960 by founding Ultrasound Laboratory. We are involved in many projects concerning various applications of ultrasonic techniques. Ultrasound institute has participated and is still participating in international projects sponsored by EC: FP5, FP6, FP7, Eurostars.

K. Barsausko st. 59
LT-51423 Kaunas, Lithuania
tel. +370 (37) 351 162, 300 543
faks. +370 (37) 451 489
e. p.


  • 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;
  • We were publishing the scientific journal “Ultragarsas (Ultrasound)” from 1969 to 2012;
  • Master and post-graduate studies.


Ultrasound was one of the science disciplines which Prof. K. Baršauskas, the first rector of KPI (now KTU), placed much emphasis on and which he was involved in himself. He strongly believed in its potential and the possibilities of using it for scientific and technological purposes. Professor's ideas motivated his young colleagues. In 1947, Stasys Vičas, a junior assistant, defended his thesis for a PhD in physics and mathematics at Kaunas State University: "Ultrasound Intensity Measurement and Diffraction of Light by Ultrasonic Waves". His academic advisor was Prof. K. Baršauskas. That was the first thesis in Lithuania defended in the field of ultrasound.

In 1952, Prof. K. Baršauskas launched into advising the first postgraduate students of acoustics Vytautas Ilgūnas and Enrikas Jaronis; he came up with the field of their scientific research: ultrasonic interferometry. The professor proposed to conduct a theoretical research of the interferometric method applicability in measuring the propagation velocity of ultrasonic waves and their absorption in liquids and also to perform experimental investigations of the properties of interferometer. In 1957, V. Ilgūnas defended Thesis "On Ultrasonic Magnetic Variance in Electro-conductive Liquids (in Russian)". In 1958, E. Jaronis defended Thesis for a PhD in physics and mathematics: "Application of Ultrasonic Interferometer with a Constant Length for Controlling Physical and Chemical Measurements (in Russian)".

The research into ultrasound kept expanding and Prof. K. Baršauskas took action to establish an independent ultrasonic research laboratory. "Maybe in the future it will be possible to develop this laboratory into a scientific research institute", wrote K.Baršauskas in his letter to the LSSR Council of Ministers regarding the staff of the Ultrasonic Problematic Laboratory. February 11, 1960 is considered to be the foundation date of the Ultrasound Research Institute, when Deputy Director for Science of KPI Assoc. Prof. Marijonas Martynaitis issued an order on the financing of the independent ultrasonic problem laboratory. The laboratory was managed by Assoc. Prof. E. Jaronis, PhD in physics an mathematics, who was appointed on the advise of the Rector. He served in this position in 1960-1964 and 1967-1984. For more than two years (from September 1964 to December 1966) the head of the Ultrasonic Laboratory was Algirdas Voleišis. In 1984, when the head of Prof. K. Baršauskas Ultrasonic Problem Laboratory E. Jaronis retired, Pranas Bernardas Milius, PhD was appointed to this position.

In 1965, the Ultrasonic Problem Laboratory was named after Prof. Kazimieras Baršauskas, to pay tribute to the founder and a long-standing rector of KPI.

Intensifying liaisons with industries gave birth to the first self-financing agreements for performance of scientific works. In 1961, on Prof. K. Baršauskas initiated a decision adopted by the State Committee of Higher and Special Secondary Education of Lithuania under the Council of Ministers on the establishment of self-financing industry-sponsored laboratories. In 1962, an industry-sponsored Laboratory of Ultrasound Introduction into Industry was established, which performed special-order scientific research works putting scientific study results into practice. The development of science departments engaged in the field of ultrasound is shown in the diagram below. In 1979, Engineer Adolfas Bieliūnas was appointed the head of the Industry-sponsored Ultrasound Laboratory and he served in this office until 1988. In 1964, the laboratory became a structural subdivision of the Theoretical Radiotechnology Department of the Radioelectronics  Faculty. The mission of the laboratory was to design and put into practice ultrasonic measurement and research methods under agreements with science institutions, economic and industrial entities. The activities of the scientific staff of the laboratory are closely related to the research performed by the scientists of the Problem Laboratory. At different times, the academic advisors of the laboratory were Prof. V. Domarkas, Prof. V. Sukackas, and Prof. R. Kažys. In 1988, the laboratory was reorganised into the Laboratory of Ultrasonic Measurement Techniques and the present head of the laboratory Doc. Dr. Reimondas Šliteris was appointed to this position.

On 11 December, 1991, the Senate of KTU decided to establish the Ultrasound Research Institute on the basis of Prof. K. Baršauskas Ultrasound Scientific Research Laboratory and the Ultrasound Design and Construction Department. Dr. P. B. Milius was appointed an interim director of the Ultrasound Institute.

On 28 September, 1992, the structure of the Ultrasound Institute was approved under Rector's Order No. A-122: Prof. K. Baršauskas Ultrasonic Interferometry Laboratory; Acoustic Location Laboratory; Flow Diagnostics Laboratory; Department of Design and Construction, and General Department. Dr. Algimantas Petrauskas was elected the director.

On 27 January, 1993, the Senate of KTU passed Resolution No. 23 under which the Ultrasound Institute became a structural subdivision of the Radioelectronics Faculty from 1 March.

In 1995, the Ultrasound Institute was reorganised into the Acoustic Location Laboratory (head Dr. A. Petrauskas) and the Flow Diagnostics Laboratory (head Dr. J. Butkus), and under the decision of the Board of the Radioelectronics Faculty the name of Prof. K. Baršauskas was granted to the Laboratory of Ultrasonic Measurement Techniques.

In 1996, Prof. K. Baršauskas Ultrasound Research Centre was established on the basis of the ultrasonic laboratories of the Radioelectronics Faculty: the Laboratory of Ultrasonic Measurement Techniques (head Dr. R. Šliteris), the Flow Diagnostics Laboratory (head Dr. J. Butkus), and the Acoustic Location Laboratory (head Dr. A. Petrauskas). Prof. Habil. Dr. Rymantas Jonas Kažys became the head of the centre. In 1999, the Ultrasound Research Institute was established following the reorganisation of the Ultrasound Research Centre.

In 2001, Prof. K. Baršauskas Ultrasound Research Institute separated from the Faculty of Telecommunications and Electronics and became a subdivision of the university. Prof. R. Kažys was elected the director and he has been serving in the position ever since.


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Research Fields

We are involved in many projects concerning various applications of ultrasonic techniques for space research, nuclear plants, aerospace industry, monitoring of various manufacturing processes, development of non-destructive testing techniques for composite materials, journal and sleeve bearings, components, used at nuclear plants, medical applications and etc.

  • Ultrasonic transducers
  • Air coupled ultrasonics
  • Long range ultrasonics
  • Guided waves
  • Application of phased arrays
  • Simulations
  • Ultrasonic measurements
  • Ultrasonic signal processing
  • Ultrasonic data processing
  • Ultrasonic image processing


Main projects

  1. Development Of Ultrasonic Imaging System For Accelerator Driven System Of Nuclear Reactor MYRRHA

FP7 projects

  1. Medium Range Ultrasonic Inspection Technique For Detecting Micro-Biologically Induced Corrosion In Automatic Fire Sprinkler Systems / SprinkTest
  2. Development Of A High Sensitivity Ultrasonic Phased Array Non-Destructive Testing Method For Early Detection Of Creep Damage In Alloy Steels Used In High Temperature/CreepTest
  3. Enhancing Structural Efficiency Through Novel Dissimilar Material Joining Techniques / SAFEJOINT
  4. Application Of The Innovative Data Fusion Based Non-Invasive Approach For Management Of The Diabetes Mellitus / SkinDetector
  5. In-Situ Wireless Monitoring Of On - And Offshore WINd TURbine Blades Using Energy Harvesting Technology – DEMOnstration / WINTUR Demo
  6. Development Of An Automated Spot Weld Inspection Device For Safe Vehicle Repair / SpotTrack
  7. Demonstration Of A Condition Monitoring System For Tidal Stream Generators / TidalSense Demo
  8. Development Of A Chemical Free, Low Maintenance Clear Water PMPC System For The Prediction, Monitoring, Prevention And Control Of Algae Based Ultrasound Technology / Clear Water PMPC
  9. Development And Validation Of An Automated Non-Destructive Evaluation Approach For Testing Welded Joints In Plastic Pipes / TestPEP
  10. Development Of A Low Cost In-Line Polymer Inspection System To Improve The Use Of Recycled Materials In Plastics Processing Industry / PolySense
  11. Novel Ultrasonic Sensor-System For In-Line Density Gradient Determination Of Ceramic Tiles / NovaPress
  12. Development Of A Condition Monitoring System For Tidal Stream Generator Structures / TidalSense
  13. Autonomous Robot For Automated Inspection Of Nozzle Welds / NozzleInspect
  14. In-Situ Wireless Monitoring Of On And Offshore WINd TURbine Blades Using Energy Harvesting Technology / WINTUR
  15. Continuous Health Monitoring And Non-Destructive Assessment Of Composites And Composite Repairs On Surface Transport Applications / COMPAIR
  16. Development Of An Ultrasonic Tehnique, Sensors And Systems For The Volumetric Examination Of Aluminothermic Rail Welds / Railect


  1. A Non-Invasive Expert System For Diagnosis Of Intraocular Tumors / NICDIT
  2. Diagnosis Of Skin Cancer Based On Information And Communication Technologies Tools / SkinMonitor

FP5 & 6 projects

  1. Micro And Nanotechnologies Going To EASTern Europe Through NETworking / MINAEAST-NET
  2. Development Of A Portable High Energy Nanofocus Computed Tomography System For Glass Reinforced Plastic Wind Turbine Blades / COncEPT
  3. Endoscope Capsule Using Ultrasound Technology / TROY
  4. Long Range Ultrasonic Condition Monitoring Of Engineering Assets / LRUCM
  5. Development Of Comprehensive In-Line Quality Control System For Printed Circuit Board Assemblies / MICROSCAN
  6. Development Of  Ultrasonic Guided Wave Inspection Technology For The Condition Monitoring Of Offshore Structures / OPCOM
  7. Condition Monitoring Of Large Oil And Chemical Storage Tanks Using Ultrasonic Guided Wave Tomography Without The Need To Empty And Clean The Tank / TANK INSPECT
  8. Development Of New And Novel Inspection Systems For Composite Aircraft Non-Destructive Testing / NANOSCAN

EC Inco-Copernicus

  1. Advanced Ultrasonic Sonars For Navigation Of Mobile Robots

Other Projects

  1. Swiss-Lithuanian Ferroelectrics: From Controlled Internal Fields To Energy Harvesting / Medical Diagnostics / Microelectronic Applications / SLIFE
  2. Ultrasonic Zirconium Tube Meter For RBMK Type Reactors
  3. Ultrasonic Depth Measurement System / SWEET
  4. Ultrasonic Coordinate Meter
  5. Ultrasonic Distance And Displacement Meter
  6. Ultrasonic System For The Journal-Bearing’s NDT
  7. Ultrasonic System For The Large Sliding Bearing’s NDT
  8. Quality Control Of The Multilayered Plastic Pipes / Plast Adviser
  9. Ultrasonic System For Investigation Of Blood Coagulation Process


Master studies – Ultrasonic material characterization

The objective of the programme is to develop knowledge in non-destructive evaluation of material properties based on the application of ultrasonic waves. Nowadays the advanced or smart materials are used in many areas such as nuclear, aerospace, medicine and biology. The development of these materials needs deep knowledge in material science, mechatronics and measurements. The non-destructive measurement of material properties is one of milestones in the reliable application of them. According to this program the students will obtain deep integrated knowledge in research or development of advanced non-destructive techniques for evaluation of material properties.

Doctoral programmes

The maximum period for completion of the doctorate is four years. Each doctoral student is assigned a research supervisor. The doctoral student together with their research supervisor produces a course plan and thesis schedule for the entire doctoral period and selects the thesis topic. The doctoral student must pass doctoral level exams in at least four subjects (30 ECTS credits). The best students have the opportunity to perform research or to study a part of their study programme at the universities of other countries. Each doctoral student is also expected to perform research and to collect data for their thesis. The doctoral student must also be engaged in pedagogical work, the volume whereof is set by the Senate.

Electrical and Electronic Engineering (01T)
Contact person – Senior Research Associate, Assoc. Prof. Elena Jasiūnienė, DSc
phone: +370 (37) 351 162

Measurement Engineering (10T)
Contact person – Principal researcher Renaldas Raišutis, DSc
phone: +370 (37) 351 162

More info – KTU Doctoral Studies >

Director – Professor Liudas Mažeika, DSc

phone: +370 (37) 300 545


Laboratory of Measurement Techniques

Research areas: ultrasonic industrial measurements; non-destructive testing; measurements for fundamental research; data, signal and image processing; development of computerized non-destructive testing systems for nuclear power plants and the chemical industry and etc.

Head – Principal Researcher, Assoc. Prof. Reimondas Šliteris, DSc
phone: +370 (37) 351 162, 300 544

Laboratory of Digital Simulation Research

Research areas: development of acoustic methods for investigation of physical and mechanical properties of materials; application of ultrasonic methods for quality control of cereal products; study of the application of echolocation methods; development of ultrasonic transducers for measuring instruments.

Head – Prof. dr. Renaldas Raisutis
phone: +370 (37) 351 162



  • 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);
  • 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 at -3 dB, pulse-echo) ultrasonic phased array systems (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 characterization (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);
  • Ultrasonic laser interferometer for precise ultrasound velocity measurements.
  • 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);
  • High voltage  (5000V, 25W) and laboratory DC (0-30V two independent outputs, 5V fixed output) power supplies (Stanford Research Systems Canada).


  • Multi-channel ultrasonic data acquisition and analysis system “SUMIAD” (“Tecnatom”, Spain);
  • “Masera” software for ultrasonic signal and image processing  (“Tecnatom”, Spain);
  • “Civa” software for numerical simulation of the ultrasonic non-destructive testing  („Extende“, France);
  • Software for simulation of ultrasonic fields and measurement processes (KTU UI, Lithuania);
  • Stand-alone computer software program for computational ultrasonics for problems that are 3D "Wave 3000 Plus" ("CyberLogic", USA).
  • Software „Ultravision“ for data acquisition, processing and imaging („Zetec“, Canada);
  • TecView UT data acquisition and analysis software for TecScan scanners ("TecScan", Canada);
  • Software control for scanning acoustic microscope KSI Vision (KSI GmbH, Germany).