Deundiak M. Radiomeasuring device for determining the optical power based on the primary pyroelectric transducers

The research object is the process of converting optical radiation frequency signal transistor structures. The research purpose is сreation of measuring devices of optical power with increased sensitivity and preservation measurement accuracy is actual scientific problem. Methods based on the use of the basic assumptions of the theory of complex variable functions, differential and integral calculus , methods of calculation of linear electric circuits using matrix system , probability theory. The theoretical results - a method of measuring optical power from the pyroelectric element and reactive properties of transistor structures, development and study of a mathematical model of a pyroelectric crystal and transistor structures, obtaining analytical expressions for calculating the parameters of pyroelectric frequency converter. First proposed method for measuring optical power from the pyroelectric element and reactive properties of transistor structures, which are based on the dependence of the impedance semiconductor structures from the effects of optical power that can significantly enhance its sensitivity and accuracy of measurement. First obtained analytical expressions for calculating the parameters of pyroelectric frequency converter, which, unlike existing, taking into account the dependence of active and reactive component of the impedance of the optical power that can significantly increase the sensitivity of radio measuring device and the power measurement accuracy. Improved mathematical model of the processes occurring in the frequency converter under optical power that , unlike existing ones, provides an opportunity to consider the impact of active and reactive components of the impedance to assess the effect of external parameters information on the elements of nonlinear equivalent circuits. The practical results based on the research, design and manufacturing of radiomeasuring for determining the optical power, witch can improve the sensitivity and accuracy of measurement and obtain economic benefits from its implementation. The results of dissertation research are introduced in Ltd. "Ukrterm "( Vinnitsa) , and the learning process Vinnytsia National Technical University ( Vinnitsa). The application field is enterprises of electronic industry.