Electrodynamic principles of designing a high local resonator probe for microwave diagnostics of various objects

Justification of the production principles of technical facilities of microwave diagnostics of various objects for a wide range of operating frequencies with the necessary locality have been implemented. The basic principle is the use of the apertural resonator measuring transducer and the modulational system of automatic adjustment of frequency of the microwave driving oscillator (AAF) according to measuring transducer. Measuring structure of a transducer is of a coaxial structure and forms a local microwave probe. Fundamental signals of measurement information (the shift of quality factor and a transducer's resonant frequency) are extracted in analog form through the AAF system and processed after the ADC by standard digital technology. Quantitative dependences characterizing the possibility of optimizing the technical means in locality and sensitivity by choice of aperture geometry node are also listed. The field of application of such means can be a study of the physical properties of thin films, biological objects, metamaterials, elements of thin-film electronics, etc.