Abstract
In the present paper the existence is proved of mechanical vibrations in TGS tandels in the frequency range from 5 kc/s to 1000 kc/s. A number of resonances was found in the given range of frequencies. Mainly plane and flexural vibrations occur. A study is made of their influence on the course of the frequency dependence of the complex effective permittivity, dielectric non-linearities of the tandel, and the thermoelectric force measured by a thermocouple on its surface. From the study of the frequency dependences of these parameters at various temperatures the conclusion is drawn that the probable cause of the origin of mechanical vibrations in a tandel is the piezoeffect.
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At the 2nd International Conference on Piezoelectricity in Liberec on Sept. 1st, 1965 the main results of this paper were presented.
In conclusion the authors would like to express their deep gratitude to Ing. J. Janta of the Institute of Radio Engineering and Electronics, Czechoslovak Academy of Sciences, to Associate Professor Dr. J. Tichý of the Technical University in Liberec and to Dr. J. Mastner of the Institute of Radio Engineering and Electronics for valuable discussions and suggestions, and to Associate Professor Dr. O. Taraba of the Czech Technical University also for facilitating the ultrasonic experiments and his help in arranging them in his laboratory. We are also indebted to all our colleagues for their friendly help.
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Málek, Z., Štrajblovä, J., Fiala, J. et al. The influence of proper mechanical vibrations on some properties of TGS tandel. Czech J Phys 16, 409–422 (1966). https://doi.org/10.1007/BF01696251
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DOI: https://doi.org/10.1007/BF01696251