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Information × Registration Number 0206U004158, 0103U003690 , R & D reports Title Design of metods of synthesis of piezoceramic transducers static and dynamic pressures and linear and vibrational accelerations with the given characteristics popup.stage_title Head Sharapov Valery Mikhailovich, Registration Date 13-02-2006 Organization Cherkasy State Tehnological University popup.description2 The models of monomorf, bimorphs and threemorfs piezoelectric transducers, and also the piezoelectric accelerometers, piezoelectric transducers with the ultrasonic concentrators, blast-furnace-transversal piezoceramic transducers and pezoceramic transformers are the object for the research. The creation of methods of piezoelectric transducers synthesis is the purpose of work and on this basis the new competitive types of piezoceramic transducers of static and dynamic pressures and linear and vibration accelerations, which have the improved characteristics, the receiving of patents of Ukraine, Russia and other countries, that will provide the priority of Ukraine in the indicated sphere, have been achieved. In the process of the work for the decision of the set tasks the methods of the theory of vibrations, the theory of chains, electro-resiliency, the theory of automatic control, the mathematical statistics, the methods of electromechanic analogues, the experimental researches of samples and computer design were used. The first stage of the work was directed on the receiving of results of theoretical and experimental researches of piezoceramic transducers of static and dynamic pressures. The methods of linearization of amplitude-frequency characteristics of these transducers which allow to extend their working frequency range in 5-20 times have been developed. The second stage of the work was directed on the receiving of results of researches in the field of piezoceramic transducers of linear and vibration accelerations with the improved characteristics, including the ultrasonic concentrators and feed-back. The usage of property of piezoceramics to acquire the piezoactivity only on the areas where in the process of polarization the electric field is put, and the possibility of implementation from the piezoceramics the wares of difficult form allowed to create the constructions of piezoelectric accelerometers with the stable and repeated working characteristics and it is considerably cheaper , than their known analogues. The third stage of the work was directed on the receiving of the results of researches of the spatial energy-forces structure of piezoelemens, and also the piezoceramic transducers, which were executed taking into account this structure: the blast-furnace-transversal peizoceramic transformers of static and dynamic pressures, and also the blast-furnace-transversal transducers with linear amplitude-frequency characteristics. The possibility to influence on the characteristics of the piezoceramic transducers (in particular, to linearize their amplitude-frequency characteristics, to change the sensitiveness), changing the mutual disposition of three vectors - vector of the polarization P, vector of the enclosed force F and vector of tension of the electric field of the outcome signal E is set. Authenticity of the received scientific results and conclusions is tested by the comparison of the theoretical positions with experimental data and dependences, the creating of pre-production models and their tests. The results of the work can be inculcated in the Scientific-Research Institute (ScRI) and Constructing Bureau (CB) which are engaged in creation of pezoceramic transducers. The hydroacoustics, undestroying electro-acoustics, the systems of management by various objects and technological processes, medical technique is the application domain of results of researches. Product Description popup.authors popup.nrat_date 2020-04-02 Close