Invariant transducers of capacitive sensor parameters into voltage

Authors

  • Marta Herasym National University "Lviv Polytechnic", 12, Str. Bandera, Lviv, Ukraine, 79013, Ukraine
  • Yevgen Pokhodylo National University "Lviv Polytechnic" 12, Str. Bandera, Lviv, Ukraine, 79013, Ukraine

DOI:

https://doi.org/10.15587/1729-4061.2014.23174

Keywords:

capacitive sensor, transducer, electric model, double layer capacity, uninformative impedance

Abstract

This paper presents the importance of capacitive primary transdusers, by which the electrical parameters of products of nonelectric nature are monitored. The main objective is to provide a result invariance to the near-electrode impedance, as uninformative parameter and to provide a proper measurement mode. Different variants of construction of invariant transducers with four-electrode contact sensors, that realize the method of direct transformation “impedancevoltage” are considered. The electrical and mathematical models of sensors of a given current mode and given preset voltage are shown.

By these transducers we can provide result invariance to the capacity of a double layer and to parameters of a test signal. Results can be used for designing the devices of monitoring the parameters of products quality by reactive and active components of admittance within the audiofrequency range simultaneously providing an appropriate measurement mode

Author Biographies

Marta Herasym, National University "Lviv Polytechnic", 12, Str. Bandera, Lviv, Ukraine, 79013

Postgraduate of the Department of Metrology, Standardization and Certification

Yevgen Pokhodylo, National University "Lviv Polytechnic" 12, Str. Bandera, Lviv, Ukraine, 79013

Doctor of engineering, Professor

Department of Metrology, Standardization and Certification

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Published

2014-04-18

How to Cite

Herasym, M., & Pokhodylo, Y. (2014). Invariant transducers of capacitive sensor parameters into voltage. Eastern-European Journal of Enterprise Technologies, 2(9(68), 28–32. https://doi.org/10.15587/1729-4061.2014.23174

Issue

Vol. 2 No. 9(68) (2014): Information and controlling system

Section

Information and controlling system

License

Copyright (c) 2014 Marta Herasym, Yevgen Pokhodylo

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