ERRORS ANALYSIS OF THE INVARIANT CONVERTER CAPACITY MEASURING CIRCUIT                                 WITH CONDUCTOMETRIC SENSOR

Grachev Andrey Vladimirovich, leading engineer, department of technical means of education, Penza State University, andean@mail.ru
Churakov Petr Pavlovich, doctor of technical sciences, professor, sub-department of information and measuring technique, Penza State University, iit@pnzgu.ru

621.317.33

Еrrors of the active measuring circuit with the differential operational amplifier are considers in this article. The researchers demonstrate errors depending on operational amplifier parameters and not informative parameters of the conductometric sensor.

conductometric sensor, invariant converter, analysis of errors.