THE USE OF DUAL-FREQUENCY ALLOCATION METHOD IN THE CONSTRUCTION OF INFORMATIVE SIGNAL MEASURING CIRCUITS OF THE PRIMARY EDDY CURRENT PROBES

Abramov Sergey Vladimirovich, leading engineer, Scientific-research Institute of physical measurements (8/10 Volodarskogo street, Penza, Russia), abramov2011s@mail.ru

621.3.014.14:621.3.088

10.21685/2307-5538-2017-3-12

Background. When measuring displacement, the beating shaft pressing problem is the separate measurement of in-formative and uninformative parameters of the primary probes (PVP) and further compensation circuit various ways uninformative. The aim of this work is to consider a dual-frequency method for the same and different initial phases, getting a full refund uninformative parameter, considering the impact of decompensaciei the following error.
Materials and methods. To solve this task we considered the functional dependence of the VFR on the main and auxiliary frequency.  
Results. The condition of full payment uninformative parameter, the influence of decompensaciei amplitude and phase on the output of PVP. Advantages and disadvantages of dual-frequency method with same and different initial phases.
Conclusions. Dual-frequency method can be used when addressing the issue of suppressing uninformative parameters of the UIP.

Equivalent circuit, dual-frequency method, the initial phase, the current non-compensation, the primary eddy current transducer, data signal, reduced error