Grigorenko I. Development of test methods of increase of accuracy of electric compensatory measuring converters in dynamic modes

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0410U003079

Applicant for

Specialization

  • 05.11.05 - Прилади та методи вимірювання електричних та магнітних величин

08-04-2010

Specialized Academic Board

Д 64.050.09

National Technical University "Kharkiv Polytechnic Institute"

Essay

Object of research - processes of change of a dynamic making error at the test control of electric compensatory static and astatic measuring converters in dynamic modes. Research objective - working out of test methods of increase of accuracy of electric compensatory measuring converters in a dynamic operating mode on the basis of the theory reljatsionno-raznostnyh models of operators of dynamic correction of entrance signals. Methods of researches - the theory of test methods of increase of accuracy of electric measuring converters, the theory generalised reljatsionno-raznostnyh models; methods of the theory of automatic control; methods of mathematical and physical modelling, the theory of indistinct sets.Theoretical and practical results: 1. Mathematical models of dynamic errors for static and astatic electric compensatory measuring converters (ECMC) are received at different forms of entrance signals. 2. Necessity of inclusion for a complex нормированных metrological characteristics ECMC of parameters of the communication line is proved and their influence on accuracy of the control is defined. 3. It is executed researches of errors of measurement of a target signal of the measuring converter with aperiodic transfer function in a dynamic operating mode and обоснованно basic possibility of correction of a dynamic making error. 4. The computer model of system of the test control static ECMC taking into account parameters of communication lines, and the astatic compensatory converter is constructed. Novelty - on reljatsionno-raznostnyh operators of correction of target signals in a dynamic operating mode the method of increase of accuracy of electric compensatory measuring converters is developed for electric compensatory measuring converters with the nonlinear form of an entrance signal which consists in formation of a test signal by switching of an analogue part of the measuring channel, creation of the fixed time delay and measurement of peak value of an initial signal on loading capacity.

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