Chunihina T. The test-calibration methods of the increasing of the electrical measuring converters' accuracy

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0410U003249

Applicant for

Specialization

  • 05.11.05 - Прилади та методи вимірювання електричних та магнітних величин

22-04-2010

Specialized Academic Board

Д 64.050.09

National Technical University "Kharkiv Polytechnic Institute"

Essay

Object of the research - the processes of the change and correction of the electrical measuring converters' errors with the developing the conjugate electrical test and calibration impacts. The purpose of the research - the basing and developing of the test-calabration method, the algorithm of the check and correction of the electrical sensors on the base of the proposed theory of the functional relative-difference models (FRM) and reper relative-difference models (FRRM) of the operators of the correction of the electrical converters' errors at the developing the conjugate test impact. Methods of researches - Analytical methods of research which are based on theories: linear and nonlinear electric chains, mathematical dynamic models in the matrix form, probability theory and casual processes, mathimatical statistics and theories of errors of measurements, methods of an estimation of errors of measurements, interpollation and extrapolation Taylor and Newton's numbers. .Theoretical and practical results: 1. The method of the estimation of the accuracy of the test check's results of the electrical measuring converters with account of the non-linearity form of the connect of the estimate of the real value of the input signal and FRM and FRRM was developed. 2. The analysis of the errors of the non-linearity of the error FRM and FRRM, which aced by the non-linearity of the function of the convert, was done. 3. The decision of the problem of the non-dismantling check of the thermoelectrical converters' metrological characteristics was proposed: the research specimen of the thermoelectrical converter with the elements of selfcheck, microprocessor system of the test check of the thermoelectrical converters and the programmer were developed. 4. The dynamical error of the test check of the thermoelectrical converters was defined . Novelty - 1. The determination of the generalized functional relative-difference and the generalized functional reper relative-difference models of the operators of the additive-multiplicate correction of the measuring converters' errors was proposed. 2. The errors of the non-linearity, which aced by the non-linearity of the function of the convert of the thermoelectrical converters, were defined. The degree of using-The results of the thesis were used in the educational process at the department "Informational-measuring technologies and systems". Sphere of the using - on the enterprises of the devisebuilding.

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