A5056380509- Ultrasonics and Acoustic Wave Propagation
- Engineering Applied Research
- Cryospheric studies and observations
- Icing and De-icing Technologies
- Advanced X-ray and CT Imaging
- AI in cancer detection
- Language and Culture
- Language, Metaphor, and Cognition
- Linguistic Studies and Language Acquisition
- Arctic and Antarctic ice dynamics
- Climate change and permafrost
- Aerospace Engineering and Energy Systems
- Advanced Data Processing Techniques
- Natural Language Processing Techniques
- Literature, Language, and Rhetoric Studies
- Biometric Identification and Security
- Transportation Systems and Safety
- Medical Imaging Techniques and Applications
- Flow Measurement and Analysis
- Laser and Thermal Forming Techniques
- linguistics and terminology studies
Wrocław University of Science and Technology
2004-2023
AGH University of Krakow
2017-2023
Czech Academy of Sciences, Institute of Physics
2017
Silesian University of Technology
2017
Opole University of Technology
2017
Akademia Tarnowska
2017
Optel (Poland)
1999-2014
One major problem in the design of ultrasonic transducers results from a huge impedance mismatch between piezoelectric ceramics and loading medium (e.g.gaseous, liquid, biological media).Solving this requires use matching layer (or layers).Optimal selection materials functioning as layers for used transmitting receiving ultrasound waves strictly depends on type energy.Several methods allow optimal layers.When using single layer, its can be calculated basis Chebyshev, DeSilets or Souquet...
Abstract This paper describes the design of an ultrasound camera which has a resolution 0.1mm. The allows observation near surface structures solid objects and is suitable for finger ridge pattern imaging (i.e., reflected in fingerprint). device can be used biometric identification individuals (for access verification). It also employed all other sorts have detectable changes structure, both natural artificial (e.g., created information recording). current version physical phenomena behind...
Abstract This paper presents a solution that utilises ultrasonic technology to allow monitoring snow layer thickness or water level based on measurement from air. It describes the principle of operation device using three methods compensating for changing external factors affecting appliance’s precision. Block diagram is also provided. In order verify proposed solutions, research team tested in laboratory and operating conditions. The results obtained this way make it possible select...
The transfer function is an important parameter describing ultrasonic transducers which are designed to operate in various media. typically high impedance of piezoelectric matched a particular loading medium (gas, liquid, biological medium) by using multicomponent matching layers, have specific impedances and thicknesses accordance with the generally known criteria: Chebyshev, DeSilets or Souquet. When properly selected, materials used for layers allow most optimal parameters be obtained...
The problem of optimal selection materials for matching layers e.g. piezoceramic transducers ultrasonic emission and reception is closely related to the type medium into which energy radiated. Due unfavoruable ratio acoustic impedance between piezoelectric ceramics gaseous, liquid biological media, conversion electrical introduces significant losses. paper presents, among other methods impedance-matching layer selection, a method based on genetic algorithms. enables search state-space...
In this paper, a method for estimating snow pressure reflection coefficient based on non-contact ultrasound examination is described. A constant frequency and air-coupled pulses were used in study, which incorporates parametric reflected energy estimation. The experimental part was carried out situ the Antarctic, where parameters measured along with meteorological data. proposed represents promising alternative snow-water equivalent, since it uses approach, does not require measurements of...
and Committee of Acoustics the Polish Academy Sciences (coorganizers) we are pleased to announce that it is nearing end preparations for conduct traditionally organized Conferences, which will take place as previously in Szczyrk.At moment, more than 50 people have confirmed participation Conferences.They present approximately 40 lectures reports.46th Winter School on Wave Quantum constitutes a platform sharing results achievements obtained different branches physical acoustics (e.g.molecular...