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Abstract

The wide variety of electrode shapes and their arrangement relative to each other, as well as the possibility of corona discharge in the ambient air, have created prerequisites for the development of a number of new methods and corona discharge transducers designed to measure microwire parameters and linear dimensions of various objects. The principally new noncontact control method is based on the dependence of the corona discharge current value on the diameter of the corona wire placed inside the discharge chamber. This paper provides an overview of this method.
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Bibliography

[1] Sh.A.Bahtaev, A.A.Bokanova, G.V.Bochkareva, G.K.Sydykova. Fizika i tehnika koronnorazrjadnyh priborov. Almaty 2007.
[2] Sh.A.Bahtaev, G.K.Sydykova, A.Zh. Tojgozhinova, K.Kodzhabergenova. Koronnyj razrjad na mikrojelektrodah. Almaty 2017 – 78p.
[3] Sh.A.Bakhtaev, G.V Bochkareva., G.D.Musapirova, “The pulsed current mode of the negative corona,” Vestnik Kaz NTU, no. 3, pp. 212-217, 2010.
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[7] Sh.A. Bahtaev, G.V.Bochkarjova, G.I. Bokova, “Sposob kontrolja diametra mikroprovoloki,” Republic of Kazakhstan Patent no. 5070, Ofic.bjull., Prom.sobstv., no. 10, 1998.
[8] Sh.A.Bahtaev, G.D. Musapirova et al., “Ustrojstvo dlja izmerenija diametra mikroprovoloki,” Republic of Kazakhstan Patent no. 96543, Ofic.bjull., Prom.sobstv., no. 2, 30.01.2017.
[9] Predpatent RK №12038.Sposob izmerenija skorosti protjazhki mikroprovoloki // Bahtaev Sh.A. i dr.Opubl. Bjull.№9, 16.09.2002.
[10] G.V.Bochkareva, G.D.Musapirova, “The frequency characteristics of the differential conductivity of the corona in the high-frequency region,” in proc. The main problems of modern science: international materials. scientific-practical conf. - Bulgaria, pp. 92-94, 2010.
[11] Sh.A.Bakhtaev, G.V.Bochkareva, G.D. Musapirova, “Areas of existence of anomalies in the high-frequency conductivity of the positive corona,” Tomsk State University Journal. AIPP no. 2, pp. 18-23, 2010.

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Authors and Affiliations

Aliya S. Tergeussizova
1
Shabden A. Bakhtaev
2
Waldemar Wójcik
3
Bekmurza H. Aitchanov
4
Gulzada D. Mussapirova
2
Aynur Zh. Toygozhinova
5

  1. Kazakh National University named after al-Farabi, Almaty, Kazakhstan
  2. Almaty University of Power Engineering and Telecommunications, Almaty, Kazakhstan
  3. Lublin University of Technology, Lublin
  4. Suleyman Demirel University, Almaty, Kazakhstan
  5. Kazakh Academy of Transport and Communications named after M.Tynyshpayev, Almaty, Kazakhstan
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Abstract

On the basis of a unipolar corona discharge, a method of non-contact and continuous measurement of linear parameters of thin and ultra-thin dielectric fibres and optical fibres (10 to 125 microns) in the process of their manufacture was developed. The measurement method differs from the commonly known methods by high accuracy and reliability of measurement and resistance to changes in the electrical characteristics of the discharge gap and the state of ambient air.
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Authors and Affiliations

Aliya S. Tergeussizova
1
Shabden A. Bakhtaev
2
Waldemar Wojcik
3
Ryszard Romaniuk
4
Bekmurza H. Aitchanov
5
Gulzada D. Mussapirova
2
Aynur Zh. Toygozhinova
6

  1. Kazakh National University named after al-Farabi, Almaty, Kazakhstan
  2. Almaty University of Power Engineering and Telecommunications, Almaty, Kazakhstan
  3. Lublin Technical University, Poland
  4. Warsaw University of Technology, Poland
  5. Suleyman Demirel University, Almaty, Kazakhstan
  6. Kazakh Academy of Transport and Communications named after M.Tynyshpayev, Almaty, Kazakhstan
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Abstract

NTC thermistors are frequently used low in cost temperature sensors which provide some of the most desirable sensing features. However, due to the nonlinear static transfer function their sensitivity decreases with temperature increase, causing lower measurement accuracy in some regions of the measurement range. This paper proposes a method for NTC thermistor nonlinearity compensation using a Wheatstone bridge and a novel dual-stage single-flash piecewise-linear ADC. Both conversion stages are performed using the same flash ADC of a novel design based on a reduced number of comparators employed. In this manner, simpler design, lower production costs, higher compactness and lower power consumption of the linearizing ADC, are achieved. The proposed linearizing method is tested on the Vishay NTCLE413E2103F520L thermistor, in the range from 0°C to 100°C, and the obtained results confirmed the effectiveness of the method in measurement accuracy improvement: when the flash ADC of 10-bit resolution is employed the accuracy obtained is 7:4747 10-5°C.
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Bibliography

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Authors and Affiliations

Jelena Jovanović
1
Dragan Denić
1

  1. University of Niš, Faculty of Electronic Engineering, Measurements Department, Aleksandra Medvedeva 14, 18000 Niš, Serbia

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