: pp. 33-36
Lviv Polytechnic National University
Lviv Polytechnic National University
Lviv Polytechnic National University

The paper describes the problems of implementation of the differential method of product quality assessment using the immittance method. The differential method of quality control is realized through a comparison of parameters of the immittance of the controlled and reference samples. The application of traditional meters of CLR-parameters complicates the process of the differential method implementation. Such units cannot directly measure relative quality. Virtually all models of such measuring instruments measure only the parameters of the monitored object through the input device. Thus, they are not adapted to the direct measurement of relative quality indicators. The authors propose to introduce a product pattern with the values ​​of the code-controlled measure of admittance. These values ​​are obtained by measuring the parameters of a standard pattern of products of a given quality level with a traditional immittance meter. The structure of the measuring instrument for the direct measurement of the relative quality index is given. The method is realized by comparing the parameters of the controlled object and the electrical standard pattern in the form of a code-controlled measure of admittance. This allows building quality control means for any non-electrical products. Controlled products are supplied by electrical parameters of immittance with means of capacitive primary converters. Direct application of the differential method of quality assessment allows simplifying the measuring instrument as much as possible and reduce the time of product quality assessment. The proposed structure of the unit enables us to determine the deviation of the relative indicator from the value one. According to the obtained value of the indicator, products can be quickly classified by quality levels.

[1] O. Antoniuk, Y. Pokhodylo, V. Yuzva, “Analysis of immittance component measurement methods of non-electrical nature objects,” EasternEuropean Journal of Enterprise Technologies, Kharkiv, 2015, vol. 4, no. 9(76), p.4-9, 2015.

[2] S. Nelson, Dielectric Properties of Agricultural Materials and Their Applications. Academic Press, 2015.

[3] T. Bubela, P. Stolyarchuk, M. Mykyychuk, O. Basalkevych, “Admittance method application in the maintenance of eco monitoring information system for soil parameters,” in Proc. 6th IEEE International Conference “Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications”, Chech Republic, 2011, p.97-100.

[4] V. Yatsuk, T. Bubela, Y. Pokhodylo, V. Yatsuk, R. Kochan, “Improvement of data acquisition systems for the measurement of physical-chemical environmental properties”,  in Proc. 9th IEEE International Conference “Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications”, Romania, 2017, p.41-46.

[5] O. Stuart, “Historical development of grain moisture measurement and other food quality sensing through electrical properties”, Instrumentation and Measurement, no.19(1), p.169-174, 2016.

[6] J. Chilo, J. Pelegri-Sebastia, M. Cupane, T. Sogorb, “E-nose application to food industry production”, IEEE Instrumentation and Measurement Magazine, no.19(1), p.27-33, 2016.

[7] V. Melnyk, P. Borschov, V. Beliaev, O. Vasylenko, O. Lameko, O. Slitskiy, “Improvement generating of the test signals for determination of the impedance parameters in wide frequency range”, Sensor Electronics and Microsystem Technologies, no.17(2), p.60-72, 2020.

[8] Yu. Bratus, E. Budnicka. V. Karpenko., S. Makarenko, Yu. Smolyar, “Imitator of complex conductivity boxes”, Pat. 3685343/24-09 USSR, ul.10, 15.03.1986.

[9] A. Vdovin, V. Karpenko, V. Kohut, V. Kozmenko, S. Makarenko, M. Surdu, “Transformer impedance measure”, G01R 27/00, Pat. 1566301 USSR, bul. 19, 23.05.1990.

[10] Yu. Bratus, E. Budnicka, V. Karpenko, S. Makarenko, Yu. Smolyar, “Imitator of complex conductivity boxes”, Pat. 1218451 (USSR), Bul. 10, 15.03.1986.

[11] Yu. Bratus, E. Budnicka, V. Karpenko, Transformer reference measure construction, Elements and schemes of electro measurement units and systems, Kyiv, Naukova dumka publ. house, 1985.