ESTIMATION OF RANDOM ERRORS OF MEASURING CONVERTERS 

Koldov Alexander Sergeevich, candidate of technical sciences, associate professor, sub-department of radio engineering and radio electronic systems, Penza State University (40 Krasnaya street, Penza, Russia), E-mail: rtech@pnzgu.ru
Rodionova Nina Vladimirovna, postgraduate student, Penza State University (40 Krasnaya street, Penza, Russia),
E-mail: rtech@pnzgu.ru
Svetlov Anatoliy Vil'evich, doctor of technical sciences, professor, head of sub-department of radio engineering and radio electronic systems, Penza State University (40 Krasnaya street, Penza, Russia), E-mail: rtech@pnzgu.ru 

621.317.73 

10.21685/2307-5538-2018-4-11 

Background. The factor of accumulation of a random error of measuring transducers at consecutive performance of several analog transformations is investigated.
Materials and methods. Statistical tests of the generalized model of the Converter to which measuring circuit five analog blocks are consistently connected are carried out. The estimation of the random error of the measurement results is obtained by the Monte-Carlo method.
Results. The values of random errors of the output voltage of the measuring transducer, examples of histograms of the distribution of the probability density of the random error and graphs of the dependences of errors on various factors are presented.
Conclusions. To build a measuring transducer with a small random error, the minimum number of consecutive analog transformations
of the measured values should be used. 

measuring converters, aggregate measurement, Monte-Carlo method