Monastyrsky Z. Polyinvariante bridge type devices for remate mcasurement of immitance sensors parameters

Object of research is the polyinvariante bridge measuring devices with immitance sensors. The purpose of development of substantive provisions of the theory and principles of construction of polyinvariante bridge devices of measurements with immitance the sensors which are taking place in heavy conditions of operation. Methods of research – the theory of invariance, position of the theory of electric circuits, theories of casual processes, theories of matrixes, theories of measurements, theories of errors, mathematical and physical modeling. Results: for the first time properties of duality and reversibility bridge measuring circuits are established and proved, new principles and schemes of indemnification of influence of not informative parameters in bridge circuits are developed and investigated new principles and schemes of indemnification of influence of not informative parameters in bridge circuits, are determined conditions of invariance of bridge devices of measurement to external influences,correlated with change of the measured size; new ways of correction of regular errors and automation of imitating checking of polyinvariante bridge devices of measurements are developed; it is adapted for work in structure of bridge devices with immitance sensors one-planimetric extreme systems of an automatic equilibration. A subject and degree of the application: six types of unique and serially suitable devices of measurements are developed, made and introduced into manufacture. Effectiveness of implantation: increase of accuracy of measurements of a level of cryogenic environments, decrease cost of immitance measurements. The sphere of application – measurement of parameters of technological processes with the help immitance sensors.