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Lecturer(s)
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Pechoušek Jiří, doc. RNDr. Ph.D.
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Course content
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1. Characteristics and application of piezoelectric materials. 2. Description of the piezoelectric materials, parameters used, symbols, units, material properties with the focus on the electromechanical features. 3. Electrostriction effect, piezoelectric direct/indirect effect (DC/AC), pyroelectric effect, ferroelectric materials, poling. 4. Materials, utilization of ferroelectric materials, piezoceramics, design of new composite materials and its utilization. 5. Piezoelectric characteristics, piezoelectric coefficients, piezoelectric equations, dielectric parameters: permittivity, piezoelectric coupling factor k, dynamic behavior of piezoelectric material. 6. Ways of measuring and analysis of mechanical vibrations, measuring with the help of impedance analyzer, fixing the piezoelectric elements, measuring with the help of laser vibrometer. 7. Measurement of vibration with the help of piezoelectric accelerometers, characteristics of Brüel & Kj?r 4508B sensor and its connection, test measurements. 8. Utilization of piezoelectric materials in the energy harvesting systems.
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Learning activities and teaching methods
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Laboratory Work
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Learning outcomes
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Characteristics of piezoelectric materials, synthesis of materials, parameters definition, elements design, utilization in the measurements and control processes, sensors, actuators, energy harvesting systems.
Knowledge from the field of instrumental physics - measurement principles, sensors, sensitive parts, and actuators. Mechanical quantities measurment.
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Prerequisites
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Knowledge from the field of instrumental physics - measurement principles, sensors, sensitive parts, and actuators. Mechanical quantities measurment.
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Assessment methods and criteria
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Oral exam
exam
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Recommended literature
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" J. Fraden. (2010). Handbook of Modern Sensors, Physics, Designs, and Applications. Springer, New York.
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" M.S. Vijiya. (2013). Piezoelectric Materials and Devices - Applications in Engineeringand Medical Sciences. CRCPress Taylor&Francis Group, London.
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" Paral?, L.; Pechoušek, J.; Sabikogluc, I.; Novák, P.; Navařík, J.; Vůjtek, M. A digital measurement system based on laser displacement sensor for piezoelectric ceramic discs vibration characterization. Optik 127 (1), 84-89.
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" Parali, L.; Sari, A.; Kilic, U.; Şahin, Ö.; Pechoušek, J. The artificial neural network modelling of the piezoelectric actuator vibrations using laser displacement sensor. Journal of Electrical Engineering 68(5)371-377, doi:10.1515/jee-2017-0069.
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" Parali, L.; Sari, L.; Malgaca, L.; Pechoušek, J.; Látal, F.:. Estimating elasticity modulus of the piezoceramic disc (PCD) using basic mathematical modelling. Optik 173, 146-156, doi:10.1016/j.ijleo.2018.07.141.
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" T. B. Sankaram, G. S. Kumar, G. Prasad. (2005). Applied Physics. Anshan Publishers; 2 edition.
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Jalili, N. (2010). Piezoelectric-Based Vibration Control: From Macro to Micro/Nano Scale Systems. Springer New York.
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M.Husák. (2008). Mikrosenzory a mikroaktuátory. Academia Praha.
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Zelenka, J. (1983). Piezoelektrické rezonátory a jejich použití. Academia Praha.
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