УМЕНЬШЕНИЕ СИСТЕМАТИЧЕСКОЙ ПОГРЕШНОСТИ ЕМКОСТНОГО ДАТЧИКА БИЕНИЙ ВАЛА ЗА СЧЕТ ИЗМЕНЕНИЯ ФОРМЫ АКТИВНОГО ЭЛЕКТРОДА

A.S. Levytskyi; A.I. Novik

No. 1 (2011), Information Measuring Systems in Electric Power Engineering

No. 1 (2011)

Information Measuring Systems in Electric Power Engineering

SYSTEMATIC ERROR REDUCTION OF CAPACITIVE SENSOR OF SHAFT BEATS DUE TO DEFORMATION OF ACTIVE ELECTRODE

Published 2010-12-23

A.S. Levytskyi⁺⁻
A.I. Novik⁺⁻

A.S. Levytskyi

Institute of Electrodynamics of the National Academy of Sciences of Ukraine, pr. Peremohy, 56, Kyiv, 03057, Ukraine

A.I. Novik

Institute of Electrodynamics of the National Academy of Sciences of Ukraine, pr. Peremohy, 56, Kyiv, 03057, Ukraine

ARTICLE_13_PDF (Українська)

Keywords

hydrogenerators
shafts
radial run-out
capacitive sensors
error measurement гидрогенераторы
валы
радиальное биение
емкостные датчики
погрешность измерения

How to Cite

[1]

Левицкий, А. and Новик, А. 2010. SYSTEMATIC ERROR REDUCTION OF CAPACITIVE SENSOR OF SHAFT BEATS DUE TO DEFORMATION OF ACTIVE ELECTRODE. Tekhnichna Elektrodynamika. 1 (Dec. 2010), 083.

Abstract

Capacitive sensor of radical shaft beats of huge electric machines which has an active scalene rectangle electrode has been suggested. While measuring a shorter side of rectangle arranges perpendicular to longitudinal axis of shaft. The calculation of sensor transfer function has been carried out. Analysis of the error caused by curvature of target cylindrical surface has been performed. Also, it has been shown that the error depends only on the side dimension of active electrode which is perpendicular to longitudinal axis of shaft. Comparison of the error with the capacitive sensor error of shaft beats with an active rounded electrode having the same area has been made. Also, it has been shown that the error of sensor with rectangular electrode is several times smaller. References 6, figures 4.

ARTICLE_13_PDF (Українська)

References

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Beloglazov A.V., Glazyrin G.V. Creation of apparatus for monitoring of run-out shaft in hydroaggregate / Sbornik nauchnykh trudov Novosibirskogo Gosudarstvennogo Tekhnicheskogo Universiteta. – 2008. – 3(53). – P. 79–84. (Rus.)

Levytskyi A.S. Apparatus and methods for control of radial run-out of cylindrical surface shafts of power hydrogenerators // Hidroenergetica Ukrainy. – 2009. – No 1. – P. 14–20. (Ukr.)

Levitskii A.S., Novik A.I. Estimation of error measurement by capacitive sensors of run-out shafts of electrical machines // Tekhnichna elektrodynamika. – 2010. – No 4. – P. 66–70. (Rus.)

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Lin Jackson, Bissonnette Marc R. A New Capacitive Proximity Probe Immune To Electrical Runout // Canadian Machine Vibration Association, 1997 Annual Meeting – Toronto,Canada. – 3–5 November 1997. – P. 1–5. www.vibrosystm.com/pdf/PCS_CMVA.PDF.